C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Transmission mount on 1988 ????

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Old Jul 19, 2004 | 06:42 PM
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Default Transmission mount on 1988 ????

Greetings all,
I had my car repaired lately and when I picked it up the mechanic said I had a broken transmission mount. I got underneath and did not see any mount I called the GM (= Got Money) parts guy and he said he did not see any transmission mount or one listed for a 1988 Corvette. Perplexed I know I need to call and verify, but want to appear semi intelligent whne I talk to this guy. Any experiences out there

Does anybody have a suggestion for a good manual to see the whole layout of my car?

Thanks,
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Old Jul 19, 2004 | 07:02 PM
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that would mean the C-beam is broken... and that is a real trick, if true.

The c-beam is the tranny mount. I have no clue what your tech is talking about... and apparently, neither does he.
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Old Jul 19, 2004 | 07:35 PM
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The whole drive train on a C4 has only four mounting points. There are the two engine mounts on either side of the engine, as any conventional Chevy engine, and there are the two bushings at either end of the "batwing", or rear diff cover. The "C "beam bolts to, and supports the rear of the transmission and also, the front of the diff and keeps them lined up. Bogus is being generous. There really isn't a trans mount. Did the shop charge for rotating the radio *****? Greasing the muffler bearings?

A factory servuce manual is available at: www.helminc.com

RACE ON!!!
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Old Jul 19, 2004 | 07:38 PM
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My Transmission guy showed me a cracked one. I was luck that mine was not cracked....
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Old Jul 19, 2004 | 07:43 PM
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Going out on a limb here, but did he mean that your tailshaft is cracked on the transmission?
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Old Jul 19, 2004 | 08:21 PM
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Ask him for the part numbers, and you would like to see the old broken trans mount
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Old Jul 21, 2004 | 07:32 PM
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Default Transmission Mount on 1988 ???? Diagrams

Hi All,
Thanks for all the info and no the muflers bearing are lifetime lubricated and did not need lubing and I have theft locks on my radio ***** I am the only one who can rotate them, which is on a annual basis during the summer.

Does anybody have a photo or drawing showing this part? It would be much appreciated
Thanks, :*****
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Old Jul 21, 2004 | 08:09 PM
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Originally Posted by tommys88c4
Does anybody have a photo or drawing showing this part? It would be much appreciated
Thanks, :*****
Here you go. This is a C-Beam.


Last edited by VetteNoob; Jul 21, 2004 at 08:50 PM.
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Old Jul 22, 2004 | 12:37 PM
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Default Transmission mount on 1988 ????

Hi VetteNoob,
Thank you very much I really appreciate the photo. Now I will know what the heck I am looking at. I called several Chevrolet dealers and none of them had a clue or a diagram showing that part and a couple never heard of it. I don't know if I should ask why you happen to have a photo of the part ... I am sure there must be story behind it

Thanks again,
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Old Jul 22, 2004 | 01:49 PM
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Originally Posted by tommys88c4
Hi All,
Thanks for all the info and no the muflers bearing are lifetime lubricated and did not need lubing and I have theft locks on my radio ***** I am the only one who can rotate them, which is on a annual basis during the summer.

Does anybody have a photo or drawing showing this part? It would be much appreciated
Thanks, :*****

wow, you shop at KaleCo!!!
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