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engine/trans mount replacement

paul j

Well-known member
Joined
Apr 27, 2004
Messages
204
Location
Lone Tree, CO
How long will the rubber in the mounts last? Mine are not torn but they are 31 years old. Is it smart to replace while engine is out? How flexible should the LH roll stopper attached to the firewall be? When I put a screwdriver in bolt hole and move it horizonitally it is very flexible.
 
Last edited:

Dashnizzle

Active member
Joined
Jun 7, 2021
Messages
30
Location
Great Falls, MT
Yes they are usually flexible.. and cracked. You can get prothane (CLICK) Inserts for them to strengthen them and especially if you have the motor out you’ll want to do something. You will hear people say this increases cabin vibrations.

Some people just fill them with window weld as well.
 

paul j

Well-known member
Joined
Apr 27, 2004
Messages
204
Location
Lone Tree, CO
Thanks. Mine are not even cracked or soft, just the rear is flexible. But it is stupid not to do a rejuvenation since the access is so easy now.
 

paul j

Well-known member
Joined
Apr 27, 2004
Messages
204
Location
Lone Tree, CO
Where did you get the front (drivers L shape) one from? Did you repair them or are they new? It appears front needs turbo specific as well as rear. It appears the trans mount is the same for all except E38A automatic.
 
Last edited:

Bstiles

Member
Joined
Aug 31, 2021
Messages
12
Location
Indianapolis
Window weld fill ftw. Not as harsh as poly inserts, but much better than factory new. And only $20. Don't be messy with it tho lol
 
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