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105666 Posts in 12339 Topics by 4754 Members
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916  Camaro Research Group Discussion / Originality / Re: 1969 AM FM radio options on: November 25, 2005, 03:40:23 PM
Single speaker in the rear well would indicate either an AM or AM/FM mono radio with the U80 auxilliary speaker option.  No Z11 had a Yellow light stereo as they didn't start showing up until Late August or early September of 69, a full 4 to 4 1/2 months after the last Z11 was built.
917  Camaro Research Group Discussion / Originality / Re: Spiral Shocks on: November 25, 2005, 10:51:43 AM
Don't often get to comment on Kurts postings (like never) but he really meant those codes are spring codes, not shock codes. Grin
918  Camaro Research Group Discussion / Originality / Re: 1969 AM FM radio options on: November 24, 2005, 08:06:24 AM
That's probably a 1970 or later AM/FM mono radio, it will fit into a 69 dash fine but there are a couple of cosmetic and functional differences.  1) the radio dial numbers are white while the 69 ones were green, and the radio light is wired to be on only when the dash lights are one, while the 69s dial was lit whenever the radio was on, on was off when the rado was off.   All 69 AM/FM radios did have the slanted fins on the output amplifiers, theoretically to clear the ductwork behind the radio, but the square finned ones will fit in there as well.  69 radios also had the eltrical and speaker connections on the right (drivers) side or the radio, not on the back side.  All 69 AM/FM units (except the yellow light) have a round plug in the drivers side rear corner of the radio used to connect the unamplified radio signal to the output amps.

AM/FM mono radios are single channel output units that were attached only to the speaker in the dash like the AM unit.  You could order RPO U80 Auxiliary speaker and get a second speaker on the passenger side rear deck with a fader knob under the radio tuning knob.  It was still a mono setup and the fader just split the signal between two speakers.

The Bluelight AM/FM stereo radio, so named because it has a blue stereo lamp in the upper right corner of the dial,  had a separate multiplex unit mounted up behind the glove box that was connected to the head unit in the dash with a 6 or 7 conductor wire and a circular plug with pins on it that looked like the bottom of an old vaccum tube.  The head unit sent unamplified mono signals to the multiplex unit which converted it into a sort of stereo signal and then sent it back to the output amplifiers in the head unit and from there out to the 4 speakers.  The bluelight setup was used from the beginning of the 69 model year to about August of 69 at which time the yellow light stereo unit came into probuction.

The yellow light stereo unit does not have the separate multiplex unit and has a yellow stereo lamp in the dial.  It was probably made for the 70 model year and used in the later camaros when a blue light unit was not available.
919  Camaro Research Group Discussion / Originality / Re: Spiral Shocks on: November 21, 2005, 06:53:35 AM
Out of all the 68 broadcast sheets I have this is what I've found.
from body broadcast sheets
Late production L30/M20 with A/C Rear shock UN. (BBC)
L30/M20 rear shock UN (BBC)
L35/M40 rear shock TN (BBC)
Z28/M20 rear shock UN (BBC)

From chassis broadcast sheets
68 L35 front PW, rear TN - front springs are YQ rear are OH.
68 L22 L6 with powerglide front TG rear, TN - front springs are YL rear are BV.
68 L35 with TH400 trans, front PW, rear TN - front springs are YQ and rear are OH.

67 LF7 powerglide front LG, rear LH - front springs are YU rear are BX.
67 LF7 powerglide with A/c front LG, rear LH - front springs are YY, rear are YC.

920  Camaro Research Group Discussion / Originality / Re: Spiral Shocks on: November 20, 2005, 10:15:00 PM
Off a 68 L35 big block chassis broadcast sheet and a 69 Z28 chassis broadcast sheet.  Front shocks in 68 are the same in both a 327/275 and the L35, but different shocks were used in 6 cylinder cars.
921  Camaro Research Group Discussion / Originality / Re: Spiral Shocks on: November 20, 2005, 06:26:03 PM
1968 L35 equipped Camaro shock broadcast codes are PW front, TN rear.  PS and UN are 69 Z28 shock broadcast codes.
922  Camaro Research Group Discussion / General Discussion / Re: How rare is my Corvette Bronze 68 SS Camaro? on: November 19, 2005, 02:19:40 PM
Look at the one in front of the 69.   Grin
923  Camaro Research Group Discussion / Originality / Re: 1968 Z28 - did all have power steering? on: November 13, 2005, 11:30:23 PM
Power steering was an extra cost option, on Z28's and every other car.  It was not required on any 67 thru 69 Camaro.
924  Camaro Research Group Discussion / Restoration / Re: rear bumper bracket on: November 06, 2005, 07:33:24 AM
It's black.
925  Camaro Research Group Discussion / Originality / Re: 1968 Body on: October 30, 2005, 07:38:55 AM
Back in the day, GM (and repro places) only stocked 67 front fenders since the fenders were the same except for the side marker openings.  You had to cut the side marker lights out for 68's.  Apparently some people didn't go to the trouble.  Are the side marker sockets stuffed up in the front corners of the car?
926  Camaro Research Group Discussion / Decoding/Numbers / Re: CE or CEA block codes for small bocks, Got DATA? on: October 27, 2005, 09:07:34 PM
A CE block, or assembly represents a major repair.  You don't get a CE engine because a lifter started ticking, or a valve started leaking oil and started puffing blue smoke and the engine needed to be torn down and individual components replaced.  You had to do some major damage to the engine for GM to even consider replacement.  A 10% failure rate in a major component of any companies product line (or even 5% since I'm sure GM made more than 1 million cars with small blocks in 69 across the Chevy line) would rapidly bankrupt that company.  Probably why you only get a 12 month 12,000 mile warranty today.  Do you know anyone who has ever got a brand new engine (or a short or long block) out of GM under warranty lately?
927  Camaro Research Group Discussion / Decoding/Numbers / Re: CE or CEA block codes for small bocks, Got DATA? on: October 26, 2005, 10:49:12 PM
That would be 90,000 blocks a year too Shocked.  If you blew up your 69 engine in 70, or 71 it would get a CE0, or CE1 stamp on it.
928  Camaro Research Group Discussion / Decoding/Numbers / Re: CE or CEA block codes for small bocks, Got DATA? on: October 26, 2005, 08:35:49 PM
Don't think that reference that a CE engine with an A suffix has been recycled (ie second time around) is correct.  I've seen A, B and C suffixes on CE engine stamps.  In the case of Flint built CE small block engines that would be 30,000 CE engines (or bare block, fitted block or complete engines), 30000 CEA engines, 30000 CEBs and then some number of CEC engines (assuming no CED engines exist), Thats at least 90,000 small blocks which is one heck of alot of replacement engines, or engine assemblies.

I believe (my theory) that the A, B and C suffixes indicate the type of components that made up the replacement.  A CE number indicates a complete engine, or perhaps a short block.  CEA is a fitted block (block, pistons rings and rods, but no crank or cam), CEB is a block only, CEC ??  Always looking to be educated though.  Bring on the documentation.
929  Camaro Research Group Discussion / General Discussion / Re: New CRG Research Report Released on Emissions/Smog equipment on: October 26, 2005, 08:21:10 PM
Plugs into the vacuum port on the carb, on the passenger side, just above the choke linkage.  On my car this tube is about 1 1/2" long.

You can see the hose that connects to the thermactor in this picture just to the lower left corner of the engine size emblem on my air cleaner.  The tube sticks out straight towards the passenger fender with the rubber hose connected to it.

930  Camaro Research Group Discussion / Restoration / Re: X11 Question on: October 24, 2005, 09:36:39 PM
It's not part of the X11 trim.  They were a separate option RPO D96 and are shown in the Assembly manual.  They were included in the RPO Z22 (Rally Sport) option for at least part of the production year but was removed around December68 /January 69 and remained as a separate option for the rest of the year.
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