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Topic: Motor mount question

in Forum: C3 Engines


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Motor mount question (1/3)
 4/10/23 6:16pm
my1stc3
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West Haven, CT - USA

Vette(s):
1968 Coupe L36


Joined: 5/3/2022
Posts: 34

Narrowed down a vibration and noise to be broken passenger side motor mount, after also replacing driveshaft and half shafts which were also needed, upon removing I see it has the V shaped shim between the mount and the block, I read that this is for AC cars as mine is not is that needed not sure if original owner installed but they look to be the first time being removed as they have the factory number 3886466 on the rubber only 1 was broken but replacing both ordered original style rubber mounts today along with transmission mount. Do I put the shim with the new mounts?

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Re: Motor mount question (2/3)
 4/10/23 9:38pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20122

Yes...it's there for a reason. Not only for clearance on A/C cars, but they also help with the driveline alignment, to help combat vibrations.



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Re: Motor mount question (3/3)
 4/10/23 9:58pm
my1stc3
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West Haven, CT - USA

Vette(s):
1968 Coupe L36


Joined: 5/3/2022
Posts: 34

Thanks was planning on putting them back figured was used for driveline alignment 

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