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Author Topic: Research help needed, 68 front drum style, finned vs unfinned  (Read 30648 times)
Jon Mello
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« on: April 30, 2008, 08:43:09 AM »

I'm working on a CRG metallic brake report for the J56 and J65 brake packages used iin 1967. As many of you may know, those metallic brake packages were discontinued after the '67 model year. The finned brake drums used in '68 seem to be a lower cost alternative to the earlier packages and so I would like to understand which models received the finned front brake drums in 1968 and which models did not. So far, it looks like the SS models and L30/M20 models have the finned drums as standard equipment but I'm not sure about other models. I would appreciate any input on this so I can have a high degree of confidence in the accuracy of the report. My understanding is the rear drums were not finned for any model of Camaro in '68. If I'm wrong about that, please let me know.

Thanks,
-Jon
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Jon Mello
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« Reply #1 on: May 04, 2008, 05:21:07 PM »

My best recollection of a 68 SS I had a long time ago was, the front drums were finned and the rear ones were not.
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68Z28
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« Reply #2 on: May 05, 2008, 12:48:44 PM »

Although my car is a 1969 Base RS Coupe (01C Norwood) and not a 1968, it does have drum brakes.  Drums in the front are finned; drums in the rear are non finned.  So at least by the time Jan 1969 had rolled around, finned drums were being used on base cars as well.
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Richard Thomas
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« Reply #3 on: May 05, 2008, 02:46:14 PM »

As another data point, my 68 L30/M20 has finned front drums and non-finned rear drums.
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68 L30 / M20 Convertible
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« Reply #4 on: May 06, 2008, 02:16:22 PM »

Thanks guys for the data so far. I'd appreciate hearing from others, especially '68 owners with 327 and 6 cylinder cars.

-Jon
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Jon Mello
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« Reply #5 on: May 06, 2008, 08:23:29 PM »

My 04A 68 RS/SS 396 had finned front & non finned rear.
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« Reply #6 on: May 18, 2008, 06:27:03 PM »

I used to own a 68 camaro, power drum brakes with 327, 2bbl, and air. It had front finned drums also. I still have the trim tag info if you need it. I bought the car in 1980 and there were several owners before I got it, but it was complete just needing a new motor.
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Steve68
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« Reply #7 on: May 23, 2008, 01:15:33 PM »

Jon

06A SS/RS, original drums, front finned, rear without fins.

Steve
« Last Edit: September 24, 2013, 04:08:29 PM by Steve68 » Logged
Jon Mello
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« Reply #8 on: May 24, 2008, 05:08:23 PM »

Thanks for the responses. Still looking for brake drum data, especially for the '68 327 2-barrels and 6-cylinder cars.

Thanks,
-Jon
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Jon Mello
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« Reply #9 on: May 24, 2008, 05:53:18 PM »

  My 68 base 327 2 barrel has non finned, non power fronts. Both my 67's (1 base 327 2 barrel, 1 RS 327 2- barrel) are non-finned non power. My brother's 68 SS/RS 396 however has power finned front.
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68L30
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« Reply #10 on: May 26, 2008, 09:27:57 PM »

68 07E L-30/Glide....Non finned front and rear....



Steve
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« Reply #11 on: May 26, 2008, 11:04:00 PM »

Jon, my '68 was a base 327 car, and it came with finned drums front and rear with manual brakes. In fact, it still has the original drums on it. I got the car in 1983, so it's unlikely anyone had added the finned rear drums because of the extra cost. I don't know if it was a 2-barrel car because the original engine had been replaced, but it had a factory manual transmission and a monoleaf 10-bolt if that helps.
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« Reply #12 on: May 29, 2008, 10:30:51 PM »

I used to own a 68 camaro, power drum brakes with 327, 2bbl, and air. It had front finned drums also. I still have the trim tag info if you need it.
Yes, if you could post the tag info, that would be helpful, esp the build date.

Others - please include the build date in your posts. That will help to see if there's a trend.

Thanks!!
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Kurt S
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« Reply #13 on: May 30, 2008, 10:16:23 PM »

Mine is a very early Norwood car going by the VIN. Hope this helps.
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« Reply #14 on: September 24, 2008, 03:34:57 PM »

I've got an 04D '68 Base 'Vert. It was originally equipped with a six cylinder.
Drums are non-finned, front & back.

Sorry, I'm so late with info. Don't usually read the research topics.
Thought I'd chime in with info, anyway.

Jerry
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Jerry
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« Reply #15 on: December 23, 2008, 05:46:01 PM »

68 230 CU IN. Manual drum. unfinned front and rear. O7C build.
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« Reply #16 on: January 17, 2009, 01:57:39 PM »

My car is a race car but from the doors to the front is all orig has finned brakes was ac car still has brake valve under car 11-b  los 11595  inter 719  pnt  d-d hope that helps.  Keith
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Classic Gary
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« Reply #17 on: February 02, 2009, 12:20:09 PM »

this might be of some help:  http://rides.webshots.com/photo/2000042800010270329XRdSZz?vhost=rides
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« Reply #18 on: February 13, 2009, 01:56:31 AM »

My '68 base 327 2bbl Powerglide, manual drum brake car has finned front drums, nonfinned rear drums.

It's a LOS car, built in June 1968.
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« Reply #19 on: April 20, 2009, 03:26:42 PM »

1968 327/2bbl 4-spd. 12E build date, non power brakes. Non-finned drums front and back.
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« Reply #20 on: May 14, 2009, 10:08:29 PM »

Might as well add the info for the future.

68 SS 350
Build Date: 07D (July, 1968 - 4th week)
Norwood, Ohio
Power brakes
Drums Front - Ribbed
Drums Back - Non-Ribbed

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68 07D SS350
John
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« Reply #21 on: January 14, 2010, 11:47:01 AM »

2E Nor RS/SS BBC - finned on front, no fins on rear.
10E Los base V8 - no fins.
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« Reply #22 on: January 14, 2010, 10:55:03 PM »

Have 68 327 2bbl front smooth original owner 06b car 68. Had 396 that had finned drum brakes 11d 68. Was under impression that ss car's had finned other's had smooth. Not positive but hope this helps. Also use to have a 67 & 68 327 2bl car's both had smooth front drum's.
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KurtS
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« Reply #23 on: January 15, 2010, 09:14:04 AM »

qwertyme77 - what was the builddate of your car? By air, you mean AC, right?

T-Bone - AC on your car? What's the complete build date?

kcracing - do you know what engine originally was in your car?

Thanks guys!
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Kurt S
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« Reply #24 on: January 15, 2010, 05:44:41 PM »

Didn't realize you were interested in 69 data.
69 2D 307 powerglide not finned front or rear not power no a/c
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« Reply #25 on: January 23, 2010, 05:52:41 PM »

1968 Norwood-built, 04A, 6 cylinder, manual brakes, no fins front or rear. I am the second owner and have owned the car since 1988 so I know the drums are the originals.
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« Reply #26 on: January 28, 2010, 02:48:27 AM »

68 12E finned front and rear owned since 1974 non power brakes no ac small block ...manual trans
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KurtS
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« Reply #27 on: January 29, 2010, 12:19:25 AM »

Two cars finned in the rear, all others are unfinned.
All SS's have finned fronts so far. So I broke out the SS's to help see the other data.

Compiled by date, engine, front / rear drums, and comments: manual or power brakes or AC.
67:
02C LF7 unfinned / unfinned  manual
??   LF7 unfinned / unfinned  manual

68:
early LF7      finned / finned  manual
10E LF7    unfinned / unfinned
11B ??         finned / ??      AC
12E LF7    unfinned / unfinned manual
12E 327        finned / finned  manual
04A L6 NOR unfinned / unfinned  manual
04D L6 rag  unfinned / unfinned
06? LF7          finned / unfinned  manual
06B LF7      unfinned / unfinned
06D L30/M20  finned / unfinned
07C L6         unfinned / unfinned
07E L30/M35 unfinned / unfinned   

??  LF7     finned / ??   J50 AC
??  LF7  unfinned / ??  Manual

11D SS396  finned / unfinned
02E SS396  finned / unfinned
04A SS396  finned / unfinned
06A SS350  finned / unfinned
07D SS350  finned / unfinned   J50
??    SS396  finned / ??   J50

69:
01C 307    finned / unfinned
02D 307 unfinned / unfinned
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Kurt S
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« Reply #28 on: February 28, 2010, 11:50:27 PM »

The car I referred to early on was an ss 350.  I don't have any of the data on it but I do have a bad picture of the cowl tag.  Did I send that to you before to try and read it?
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68Z28
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« Reply #29 on: March 01, 2010, 05:51:21 PM »

I don't recall, but it sounds like I don't need it. Smiley
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Kurt S
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« Reply #30 on: March 01, 2010, 06:35:22 PM »

I think I'd need a CIA computer to read it anyway.
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68Z28
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« Reply #31 on: November 24, 2010, 08:21:48 PM »

L30 M20  10D  327/275 hp 12 bolt rear end (original) NON power on the brakes. Finned fronts, non-finned on the rear. NO A/C NO PS NO PB
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KurtS
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« Reply #32 on: November 28, 2010, 11:08:15 PM »

Brad,
Thanks! I take it this is a different car than the LF7 that you are working on. Smiley

Rears: all are unfinned in the rear, except for 2 that have fins.

Compiled by date, engine, front / rear drums, and comments: manual or power brakes or AC.
67:
02C LF7   unfinned / unfinned  manual
??   LF7   unfinned / unfinned  manual

68:
early LF7          finned /    finned  manual
10D L30/M20    finned / unfinned  manual, no AC
10E LF7        unfinned / unfinned
11B ??             finned /  ??            AC
12E LF7        unfinned / unfinned  manual
12E 327           finned /    finned   manual
04A L6 NOR  unfinned / unfinned  manual
04D L6 rag    unfinned / unfinned
06? LF7            finned / unfinned  manual
06B LF7        unfinned / unfinned
06D L30/M20    finned / unfinned
07C L6          unfinned / unfinned
07E L30/M35 unfinned / unfinned   

??  LF7       finned / ??      J50 AC
??  LF7    unfinned / ??     Manual

11D SS396  finned / unfinned
02E SS396  finned / unfinned
04A SS396  finned / unfinned
06A SS350  finned / unfinned
07D SS350  finned / unfinned   J50
??    SS396  finned / ??            J50

69:
01C 307       finned / unfinned
02D 307   unfinned / unfinned
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Kurt S
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« Reply #33 on: January 11, 2011, 05:50:33 PM »

There's an 1969 05C car on ebay, L65 350, no AC, manual brakes - finned front drum brakes. Rears look unfinned.
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Kurt S
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« Reply #34 on: January 11, 2011, 07:05:10 PM »

There's an 1969 05C car on ebay, L65 350, no AC, manual brakes - finned front drum brakes. Rears look unfinned.

http://cgi.ebay.com/ebaymotors/1969-CHEVY-CAMARO-RS-350-X11-MATCH-PRTCTO-PLATE-DRIVES-/190489264907?pt=US_Cars_Trucks&hash=item2c5a0b830b

Paul
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« Reply #35 on: June 28, 2011, 01:38:35 AM »

Late update:

1968 base coupe, 05E, LF7, PG, non-AC, manual drums -> finned front, unfinned rear
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Jon Mello
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« Reply #36 on: June 28, 2011, 10:09:53 AM »

Thanks for the data. Can you let me know if there are any casting numbers on these finned front drums of yours?
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Jon Mello
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« Reply #37 on: July 09, 2011, 07:39:05 PM »

Can you let me know if there are any casting numbers on these finned front drums.....?

Jon,

In case this might help, following are the numbers cast into the front finned drums on my 01C Norwood '69 RS Coupe.  Rear drums on my car are not finned.

Refer to pictures below and in 2nd post.  

Casting # - 3853549

2nd # - W-14

Richard
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Richard Thomas
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« Reply #38 on: July 09, 2011, 07:42:26 PM »

2nd post
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Richard Thomas
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« Reply #39 on: July 09, 2011, 10:30:38 PM »

Thank you, Rich. Good info and pics.
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Jon Mello
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« Reply #40 on: August 25, 2011, 08:42:26 PM »

Adding an 08E ebay car: http://cgi.ebay.com/ebaymotors/1969-Camaro-Sport-Coupe-350-stick-A-C-Rust-free-AZ-CAR-/330604818707?pt=US_Cars_Trucks&hash=item4cf9953113

Summation
Rears: all are unfinned in the rear, except for 2 that have fins.

Compiled by date, engine, front / rear drums, and comments: manual or power brakes or AC.
67:
02C LF7   unfinned / unfinned  manual
??   LF7   unfinned / unfinned  manual

68:
early LF7          finned /    finned  manual
10D L30/M20    finned / unfinned  manual, no AC
10E LF7        unfinned / unfinned
11B ??             finned /  ??            AC
12E LF7        unfinned / unfinned  manual
12E 327           finned /    finned   manual
04A L6 NOR  unfinned / unfinned  manual
04D L6 rag    unfinned / unfinned
06? LF7            finned / unfinned  manual
06B LF7        unfinned / unfinned
06D L30/M20    finned / unfinned
07C L6          unfinned / unfinned
07E L30/M35  unfinned / unfinned   

??  LF7      finned / ??      J50 AC
??  LF7   unfinned / ??     Manual

11D SS396  finned / unfinned
02E SS396  finned / unfinned
04A SS396  finned / unfinned
05E 327     finned / unfinned   manual
06A SS350  finned / unfinned
07D SS350  finned / unfinned   J50
??    SS396 finned / ??           J50

69:
01C 307     finned / unfinned
02D 307  unfinned / unfinned
05C 350     finned / unfinned   manual
08E 350     finned / unfinned   manual  AC
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« Reply #41 on: August 27, 2011, 01:26:27 PM »

  Hello, I see you don't have a lot of 67's here, so I'll chime in.  My 11A  LOS built Coupe has the LF7 Engine and Manual Brakes, it has unfinned Drums both front and rear.
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Mike C.    NW - Illinois
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« Reply #42 on: April 19, 2012, 11:55:57 AM »

The front drums that were on my 68 RS are non-finned. The rears were finned but I don't believe they are original, they don't fit that well. The car is a 12D LOS. 327 2bbl Powerglide. Manual drum brakes and manual steering and no other significant optons. I can post the casting numbers if need be. Are there date codes on drums? Hope this helps.

John
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« Reply #43 on: April 19, 2012, 02:16:56 PM »

My 1968 RS has unfinned drums front and rear, car is an 07E, I believe to have been built in the last week of production but I do not know that for sure the serial number is within of the last 300 of the end. I don't know if this helps. Darrell D
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« Reply #44 on: May 17, 2012, 06:31:06 PM »

03C L48 NOR  disc / unfinned, power, AC
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« Reply #45 on: February 02, 2013, 02:04:30 AM »

Darrell,
That's a really late 68. Does it have the 210 hp or the 275 hp version of the 327?

68 12E finned front and rear owned since 1974 non power brakes no ac small block ...manual trans
Same question: Does it have the 210 hp or the 275 hp version of the 327?
Are you sure on the finned rears?

Thanks!
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« Reply #46 on: February 09, 2013, 09:13:01 PM »

Kurt,
 08E 68 R/S (was L-30 /PG) with A/C. Finned front and rear,
    VT
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« Reply #47 on: April 09, 2013, 09:05:57 PM »

Summation
Rears: all are unfinned in the rear, except for 3 that have fins.

Compiled by date, engine, front / rear drums, and comments: manual or power brakes or AC.
67:
11A LF7   unfinned / unfinned  manual
02C LF7   unfinned / unfinned  manual
??   LF7   unfinned / unfinned  manual

68:
early LF7          finned /    finned  manual
08E L30/PG      finned /    finned
10D L30/M20    finned / unfinned  manual, no AC
10E LF7        unfinned / unfinned
11B ??             finned /  ??            AC
12D LF7/PG   unfinned / replaced  LOS
12E LF7        unfinned / unfinned  manual
12E 327           finned /    finned   manual
04A L6 NOR  unfinned / unfinned  manual
04D L6 rag    unfinned / unfinned
06? LF7            finned / unfinned  manual
06B LF7        unfinned / unfinned
06D L30/M20    finned / unfinned
07C L6          unfinned / unfinned
07E L30/M35  unfinned / unfinned   
07E 327         unfinned / unfinned

??  LF7      finned / ??      J50 AC
??  LF7   unfinned / ??     Manual

11D SS396  finned / unfinned
02E SS396  finned / unfinned
04A SS396  finned / unfinned
05E 327     finned / unfinned   manual
06A SS350  finned / unfinned
07D SS350  finned / unfinned   J50
??    SS396 finned / ??           J50

69:
01C 307     finned / unfinned
02D 307  unfinned / unfinned
05C 350     finned / unfinned   manual
08E 350     finned / unfinned   manual  AC
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« Reply #48 on: May 28, 2013, 01:34:09 PM »

01A 68 ss350 finned front non finned rear manual
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« Reply #49 on: June 03, 2013, 09:22:44 PM »

10C, 68 R/S, 327 / 210, 4 speed, non power, both unfinned.  Norwood car.
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« Reply #50 on: July 07, 2013, 07:58:09 AM »

My '68 RS was built 02D, 230 six with 3 speed manual. Non-finned drums front and rear. This is my first post on here...moving here from the Team Camaro website because I'm more of a purist. Is there a forum regarding glass?
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« Reply #51 on: September 23, 2013, 11:51:38 PM »

Summation
Rears: all are unfinned in the rear, except for 3 that have fins.

Compiled by date, engine, front / rear drums, and comments: manual or power brakes or AC.
67:
11A LF7   unfinned / unfinned  manual
02C LF7   unfinned / unfinned  manual
??   LF7   unfinned / unfinned  manual

68:
early LF7          finned /    finned  manual
08E L30/PG      finned /    finned
10C LF7       unfinned / unfinned  manual  NOR
10D L30/M20    finned / unfinned  manual, no AC
10E LF7        unfinned / unfinned
11B ??             finned /  ??            AC
12D LF7/PG   unfinned / replaced  LOS
12E LF7        unfinned / unfinned  manual
12E 327           finned /    finned   manual
01A SS350       finned / unfinned   manual
02D L6         unfinned / unfinned
04A L6 NOR  unfinned / unfinned  manual
04D L6 rag    unfinned / unfinned
06? LF7            finned / unfinned  manual
06B LF7        unfinned / unfinned
06D L30/M20    finned / unfinned
07C L6          unfinned / unfinned
07E L30/M35  unfinned / unfinned   
07E 327         unfinned / unfinned

??  LF7      finned / ??      J50 AC
??  LF7   unfinned / ??     Manual

11D SS396  finned / unfinned
02E SS396  finned / unfinned
04A SS396  finned / unfinned
05E 327     finned / unfinned   manual
06A SS350  finned / unfinned
07D SS350  finned / unfinned   J50
??    SS396 finned / ??           J50

69:
01C 307     finned / unfinned
02D 307  unfinned / unfinned
05C 350     finned / unfinned   manual
08E 350     finned / unfinned   manual  AC
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Kurt S
CRG
trobert63
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« Reply #52 on: November 14, 2013, 09:24:49 PM »

Mine are unfinned both front and rear. Power brakes . I believe they are original to the car.  1968 327 L30 Powerglide.  Build date 07C LOS
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MyRed67
Hero Member
*****
Posts: 647


SZZLN 67

michael-l.campbell@hotmail.com
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« Reply #53 on: November 15, 2013, 02:30:53 AM »

Kurt, my drums are both unfinned front and rear,  11A  built 67   LF7 with Powerglide.
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1967 Camaro  LOS  11A
Original Engine   Z - Tribute
Mike C.    NW - Illinois
stovebolt
Member
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Posts: 132

1968 Sport Coupe


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« Reply #54 on: March 31, 2014, 11:50:35 AM »

Can anyone explain the differences in the brake shoe sets used with the finned drum as opposed to the non-finned drum? GM specifies a different part number. Thanks, Joe.
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