CRG Discussion Forum
Camaro Research Group Discussion => General Discussion => Topic started by: mossyoak1964 on April 15, 2012, 12:51:09 AM
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I am new to this site and have some q's about 4spd options for the 1967 ss 350. My car is all number matching with protect-o-plate. The Rear end code that matches the protect-o-plate is PL0919G
PL=4-speed close ratio 3.55:1 rear gear. I thought the close ratio Muncies where installed in z's and big blocks? This car is a L48 295hp 350 Cal. built with speed warning indicator and heater delete. Has anyone documented a m-21 in a SS-350? Thanks
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PL has nothing to do with the transmission. That is the rear axle code only. What does your cowl tag show for the transmission code?
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"I am new to this site and have some q's about 4spd options for the 1967 ss 350. My car is all number matching with protect-o-plate. The Rear end code that matches the protect-o-plate is PL0919G
Daniel is correct. PL is only used to identify the axle type. In your case a 3.55:1, 12 bolt, Non Posi. Built Sept. 19, 1st Shift".
"I thought the close ratio Muncies where installed in z's and big blocks"?
That's correct. The M21 was for Z28's, L34's & L78's.
Can you post pics of the POP, the cowl, the Vin #, and the engine pad? If you have trouble posting pics send them to my email address & I'll try to post them for you.
BTW...welcome!
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THE l48'S CAME WITH AN M-20
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The Protect-O-Plate has P7R04 listed for the transmission. I will try to take some pics of the POP and post. I got the information regarding the PL being a M-21 from chevrolet by the numbers. All numbers that I have followed up with have checked out. The RPM change between gears when I drive indicates close ratio. Thanks
Vin: 124377L112XXX
Deluxe Parchment
Marina Blue with white stripe
Block V1025MT 3892657
Cowl tag
Option 2 4spd, console, rear antenna, rear speaker
Option 3 z23/z21
Option 4 SS 350
Option 5 Deluxe seat belts
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Cowl tag:
10D X119
67-12637 Los 4347
797-Z F-F
W SLGSR 3SDK
4P 5Y
Protect-O-Plate:
K FF R
V1025MT PL0919G K
P7R04 4 4
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No idea why CBTN's has that 'close ratio' note for that axle. It's incorrect.
You car has traveled some in the past few years - CA, KY, OH, MO.
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Looks like its already in the CRG data base but here you go Kevin;
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...
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Looks like its already in the CRG data base but here you go Kevin;
Engine & Tran ??? ??? ??? Sure hope I'm wrong! Need a pic of the engine pad to make sure. Maybe it's in the data base. But the number you gave doesn't match. And of course, neither does the M21.
Thanks for posting the pics!
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Your welcome Kevin.
BTW...don't put any meat into that quote of mine. I got confused with the mention of the M21 for an L48. I should have paid closer attention to what Daniel wrote! I missed your PL=...
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Your welcome Kevin.
BTW...don't put any meat into that quote of mine. I got confused with the mention of the M21 for an L48. I should have paid closer attention to what Daniel wrote! I missed your PL=...
Marty,
I sent you a pic. of the engine pad. These #'s seem to match the POP, but I realize that people have been building frauds and claiming #'s match for years. I have verified all the numbers on the car and they match the POP to Vin #. Hopefully its the real deal. Thanks
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No idea why CBTN's has that 'close ratio' note for that axle. It's incorrect.
You car has traveled some in the past few years - CA, KY, OH, MO.
Note for reference: CBTN's 1965-69 with red 68 396 conv. on cover page 309 under 1967 camaro rear axle codes
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Kevin - So far everything checks out. The pad looks great, including the cowl. See if you can get me a straight on shot of your POP and I'll brake it down for you as well. A pic of the partial vin on the tran would be nice also.
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BTW, gorgeous car!
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Kevin - So far everything checks out. The pad looks great, including the cowl. See if you can get me a straight on shot of your POP and I'll brake it down for you as well. A pic of the partial vin on the tran would be nice also.
The only thing that I have decoded differant is under the Option 2 L=M20/M21 4spd. This car currently doesnt have fold down back seat.
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Is there any way other than pulling the cover on the trans. to determine if this is a M20 or M21? Everything I see has not indicated that this is not a M21.
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I haven’t had anything stronger than water the last couple days, really; hiccup, hiccup, hiccup. :-\
3x a charm ???
(1) W-Tinted (windshield only)
(2) L- 4 speed floor shift {“M20/M21”}
G- Console front compartment
S- Antenna manual-RR
R- Speaker rear
(3) S- Interior décor grp
D- Lamp courtesy (coupe-under dash only)
K- Ext moldg grp
(4) P- Radius rod
(5) Y- Belts deluxe
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Is there any way other than pulling the cover on the trans. to determine if this is a M20 or M21? Everything I see has not indicated that this is not a M21.
Follow the RPO on the left hand column until you see M21 and check the requirements (off to the right). There is no way a M21 would have come from the factory in a L48. If it did it would show up here; http://www.camaros.org/pdf/options.pdf
Do you have any numbers off the side of the trans? This should tell us exactly what you have. You can find the "Maincase Casting Numbers" here; http://www.camaros.org/trans.shtml#4speed
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Kevin - So far everything checks out. The pad looks great, including the cowl. See if you can get me a straight on shot of your POP and I'll brake it down for you as well. A pic of the partial vin on the tran would be nice also.
Marty,
I have sent you the trans, and POP. I had a hell of a time locating the partial Vin # on the trans. It was located on top back by the tail housing. Thanks again!!
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Is there any way other than pulling the cover on the trans. to determine if this is a M20 or M21? Everything I see has not indicated that this is not a M21.
Follow the RPO on the left hand column until you see M21 and check the requirements (off to the right). There is no way a M21 would have come from the factory in a L48. If it did it would show up here; http://www.camaros.org/pdf/options.pdf
Do you have any numbers off the side of the trans? This should tell us exactly what you have. You can find the "Maincase Casting Numbers" here; http://www.camaros.org/trans.shtml#4speed
Here is the #'s on the case: 3885010 3088336 3857584 tail housing.
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Look at the 2nd one down under Muncie; It's yours...3885010 {M20}...Key on this link; http://www.camaros.org/trans.shtml#4speed
I did get your other pics. I'll have them posted in a few.
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Is there any way other than pulling the cover on the trans. to determine if this is a M20 or M21? Everything I see has not indicated that this is not a M21.
Yes - If the rpm drop from 1-2, 2-3, and 3-4 shifts is pretty much the same, it's an M21; if the rpm drop at 3-4 is significantly more than from 1-2 or 2-3, it's an M20.
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Here are three of your four other pics. I'll work on the POP in the next day or so. Right now I have a date with my son, easy chair, and the Yankees and Angels. We're headed up to Cal next month to see them live so this is kind of a precursor. ;)
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...
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Could it be a M20 case with M21 guts or aftermarket gear set? Not up on Muncies as far as what will interchange, I know you cant mix and watch but could you change all the innards?
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Kevin- Here's your POP (could not find RPO U15- Speed Warning Device). I don't think I have ever seen a closer car and engine build date; Car-10D, Engine-10/25.
Your "Guards, door-edge" is RPO B93
BTW, If you get some time and figure out this posting pics thing, would you mind posting your L48 on this thread? http://www.camaros.org/forum/index.php?topic=8314.0. This link might help you with posting pics; http://www.camaros.org/forum/index.php?topic=7215.0. Or, this one; http://www.camaros.org/forum/index.php?topic=4896.0
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I always thought 4P was the code for SS350 not just a radius rod. L30/M20 also got the 4P but we know in this case it's not an L30 car so the 4P code would indicate SS350.
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something doesn't add up - correct me if I'm wrong
a 350/ 295 would have a 4BBL carb - but POP indicates a 2BBL
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something doesn't add up - correct me if I'm wrong
a 350/ 295 would have a 4BBL carb - but POP indicates a 2BBL
Marty just made a typo. It should be a R instead of a B for the carburetor code as Kevin has noted in reply #5 above. R would make it a Quadra-Jet.
Paul
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I always thought 4P was the code for SS350 not just a radius rod. L30/M20 also got the 4P but we know in this case it's not an L30 car so the 4P code would indicate SS350.
Dan- I got that info here under Fisher Body Codes. Did I interpret it wrong? It's for 67's only; http://www.camaros.org/numbers.shtml#67Codes
something doesn't add up - correct me if I'm wrong
a 350/ 295 would have a 4BBL carb - but POP indicates a 2BBL
Marty just made a typo. It should be a R instead of a B for the carburetor code as Kevin has noted in reply #5 above. R would make it a Quadra-Jet.
Paul
Thanks for being diplomatic about it Paul, I screwed up! Must be that mirror image thing. :)
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something doesn't add up - correct me if I'm wrong
a 350/ 295 would have a 4BBL carb - but POP indicates a 2BBL
Marty just made a typo. It should be a R instead of a B for the carburetor code as Kevin has noted in reply #5 above. R would make it a Quadra-Jet.
Paul
Ya, the carb # is a 7037203 k6 DY Rochester.
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I found a tag on the drivers side of the transmission on one of the side plate bolts that looks like an old rear-end tag. 3870357
I can't seem to find any reference to this tag #. Can someone help identify? Thanks
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Kevin- Here's your POP (could not find RPO U15- Speed Warning Device). I don't think I have ever seen a closer car and engine build date; Car-10D, Engine-10/25.
Your "Guards, door-edge" is RPO B93
BTW, If you get some time and figure out this posting pics thing, would you mind posting your L48 on this thread? http://www.camaros.org/forum/index.php?topic=8314.0. This link might help you with posting pics; http://www.camaros.org/forum/index.php?topic=7215.0. Or, this one; http://www.camaros.org/forum/index.php?topic=4896.0
Can someone help explain the second # 4 on the POP. I thought this stood for heater delete. One other option that was identified earlier is the radius rod for the rear axle. This rear end doesn't show signs of a bracket every being welded to the drivers side of axle. ????Thanks
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I found a tag on the drivers side of the transmission on one of the side plate bolts that looks like an old rear-end tag. 3870357
I can't seem to find any reference to this tag #. Can someone help identify? Thanks
It's the transmission ID tag. It's the correct number for a Muncie M20.
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I found a tag on the drivers side of the transmission on one of the side plate bolts that looks like an old rear-end tag. 3870357
I can't seem to find any reference to this tag #. Can someone help identify? Thanks
3870357 is the final assembly part number for the M20 transmission used on the 1967 L48 and L35 engines.
Can someone help explain the second # 4 on the POP. I thought this stood for heater delete.
C48 is indicated as position e, number 4 in the POP DECODE SECTION (http://www.camaros.org/numbers.shtml#POPOptionCodes). Your POP shows position c and f (both number 4), so you have U63/U80 (Am radio with rear speaker) and B93 (door edge guards).
Your car's too early for the radius rod. More info HERE (http://www.camaros.org/radiusrod.shtml).
Ed
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TR
I found a tag on the drivers side of the transmission on one of the side plate bolts that looks like an old rear-end tag. 3870357
I can't seem to find any reference to this tag #. Can someone help identify? Thanks
3870357 is the final assembly part number for the M20 transmission used on the 1967 L48 and L35 engines.
Can someone help explain the second # 4 on the POP. I thought this stood for heater delete.
C48 is indicated as position e, number 4 in the POP DECODE SECTION (http://www.camaros.org/numbers.shtml#POPOptionCodes). Your POP shows position c and f (both number 4), so you have U63/U80 (Am radio with rear speaker) and B93 (door edge guards).
Your car's too early for the radius rod. More info HERE (http://www.camaros.org/radiusrod.shtml).
Ed
Ed,
I guess that explains what trans this car has. Thanks for info!
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One last ???? I didn't see any indication of a speed warning indicator listed with the option either on the POP or the cowl tag, but this car has a fully functional one that apears to be original. This car hasn't had one suprise with any of the other options an I feel that it is original. Thanks for everyones help!!!!
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Kevin- Here's your POP (could not find RPO U15- Speed Warning Device). I don't think I have ever seen a closer car and engine build date; Car-10D, Engine-10/25.
Your "Guards, door-edge" is RPO B93
BTW, If you get some time and figure out this posting pics thing, would you mind posting your L48 on this thread? http://www.camaros.org/forum/index.php?topic=8314.0. This link might help you with posting pics; http://www.camaros.org/forum/index.php?topic=7215.0. Or, this one; http://www.camaros.org/forum/index.php?topic=4896.0
Marty, just figured it out and posted some pics on L 48 WDOAL. Thanks for you help.
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One last ? I didn't see any indication of a speed warning indicator listed with the option either on the POP or the cowl tag, but this car has a fully functional one that apears to be original.
U15 wasn't listed on the POP or the trim tag.
Ed
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That's correct. I too have the POP and it isn't on there. I took these pics of my original U15 for another member a couple of days ago. Does yours look similar to it? All of this will be in your '67 AIM (Assembly Instruction Manual).
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U15 Cont'd...
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Marty, just figured it out and posted some pics on L 48 WDOAL. Thanks for you help.
See, it isn't so bad! ;)
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Ya, not bad 1 of 3698 u15 equiped cars in 67. Can anyone anwser if my car is equiped with C96 Axle; non-standard ratio (3.55:1) 1 of 6,322 . Not sure what the non-standard ratio means. I will post some pics tomorrow of the speed warning indicator. Thanks
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Ya, not bad 1 of 3698 u15 equiped cars in 67. Can anyone anwser if my car is equiped with C96 Axle; non-standard ratio (3.55:1) 1 of 6,322 . Not sure what the non-standard ratio means. I will post some pics tomorrow of the speed warning indicator. Thanks
That's not C96 but G96. Non-standard would be something changed from the default part that was used. I don't know what the default ratio would have been but it wasn't 3.55. All cars built have default part that is used to build it. Default meaning just ordinary run of the mill cars. If something was changed it would get a different code on the build sheet so the plant workers would know what to install.
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Kevin- Get the number off of your axle then go to this link & look at the listing under "Rear Axle Codes". The first two letters are the key; http://www.camaros.org/drivetrain.shtml#AxleCodes. It will tell you exactly what you have. Here is a pic of mine to use as reference;
Your POP says it's "PL" which is 3.55. So you are probably correct. Just verify it with what's on your car.