8.2 - Transmission Mount ( ,  )

When the transmission mounts fail often the first thing noticed is a knocking noise when cornering as the propshaft hits the tunnel sides.

The tranny mount cross member has large round bucket hanging down. Put hand over the top of cross member towards the right and attempt to find middle of mount. You won't because the top cup of the mount (around 4" diameter) is in the way. Feel out from this and downwards and you should find smooth round steel ridge about 7 " in diameter (same as bucket). This is ring that hold bucket in place.

Between these two items is foam rubber ring set into top of bucket. This is the bit that rots and fails.

If you do manage to get your bearings when feeling mount you should be able to feel sideways slop if mount is shot. There should be no free sideways motion as foam should be snug fit (of course if you push hard you will compress foam).

Replacement is fairly easy as long as you take the weight of the transmission (2x4 on jackstand across sump will do). Remove the 4 bolts carefully as the spring will still be compressed. Try using a trolley jack to hold it and ease it down. The spring force is not huge but will give you nasty smack in the teeth if you're careless.

The rear of the crossmember won't come all the way down and it will start swinging towards rear. This is OK as the spring is almost uncompressed here. Just let it down and the spring will either stay put or pop out gently. There is a wire strap between the rear of the crossmember and the transmission mount. Remove clip and pin and the cross member and mount comes free.

Mount has a ring which holds assembly to cross member. Remove 3 bolts to reveal all the parts.

The foam retainer loses inner surface which allows sideways movement and allows the inner spring carrier to rise up out of the assembly. Because of this it's not obvious where the bits should be.

When putting new one in you have to put the bits in this order:

1...crossmember

2...spring cup(large)

3...rubber spring seat

4...large spring

5...foam ring

6...small cup with balance weight mounted in it

7...big ring with travel limiter pin mounting

8...small spring(goes inside small cup)

9...rubber spring seat

This sits in a cup on the transmission, and is stopped from moving to far by the travel limiter cable that’s held in place using a pin