what size motor mount shims needed? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

09-05-2024, 09:21 PM

MikeB

Senior Member

Join Date: Jul 2000

Location: North Texas

Posts: 3,571

Re: what size motor mount shims needed?

Quote:

Originally Posted by vardenafil

i just replaced newish rubber motor mounts with poly ones. my engine still sits too low. what size spacers should i try? i need to bring up the motor 1/2 to 3/4 of an inch.

If it was low with stock mounts and poly mounts, something is not right. Maybe too high at the trans cross member?

BTW, ideally the the carb would be level, or close to it.

__________________
Mike
1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

Last edited by MikeB; 09-06-2024 at 09:20 AM.

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