Transmission Mount
Thread Starter
Junior Member
Joined: Jul 2011
Posts: 13
Likes: 0
From: Appleton, WI
Car: 1983 Camaro Z28
Engine: Chevy Nova 5.7L 350 Carb.
Transmission: Manual
Axle/Gears: Stock
Transmission Mount
Today I was on the road and suddenly my shifter dropped down like 5". I got home and looked underneath the car to find the whole transmission lowered. The bar that goes across the transmssion under it, that the tranny mount is attached to has rusted through on one side and broke! So only one side of this bar is attached.
I am not driving it until I get it to a body shop or mechanic but I would like to know how bad it is.. I don't know if its actually part of the frame or if it is a seperate piece you can bolt on and replace??
I just hope the fix doesn't cost more than the car!
I am not driving it until I get it to a body shop or mechanic but I would like to know how bad it is.. I don't know if its actually part of the frame or if it is a seperate piece you can bolt on and replace??
I just hope the fix doesn't cost more than the car!

Joined: Mar 2008
Posts: 557
Likes: 15
From: Lincoln, NE
Car: 86 Z28
Engine: Built 312
Transmission: T5
Axle/Gears: 10 bolt 3.42
Re: Transmission Mount
Tranny crossmember. Easy, cheap (should be) fix. One from a third gen A4 or 5speed will work. 4 bolts, 8 if you count the 3 on the tranny mount- replace that while you're in there. Most boneyards should have them. Good luck!
Joined: Sep 2005
Posts: 27,881
Likes: 2,432
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Transmission Mount
Depends to some extent on what actually rusted through and broke, but then again, maybe not...
If it's just the crossmember, you can get a junk one and change it out. But that is,,, .... unlikely ..... to do any good, to say the least.
If it's the part of the car that the x-mem bolts to, the car is pretty much toast. It is inconceivable that just that one spot has rusted bad enough to fall apart like that, but the rest of the car HASN'T. Impossible.
Same for the X-member... you haven't been driving around in the salt, and the whole car staying free of it except for just that one spot. You can bet that if THAT has cancerized completely through, you can see through the floor pan, the gas tank is less than a sheet of paper, the rear wheel wells probably are only held on by the carpet that's glued to them on the inside, etc.
Consider it a warning that it's time to SERIOUSLY inspect the car for rot, and prepare to buy another chassis.
If it's just the crossmember, you can get a junk one and change it out. But that is,,, .... unlikely ..... to do any good, to say the least.
If it's the part of the car that the x-mem bolts to, the car is pretty much toast. It is inconceivable that just that one spot has rusted bad enough to fall apart like that, but the rest of the car HASN'T. Impossible.
Same for the X-member... you haven't been driving around in the salt, and the whole car staying free of it except for just that one spot. You can bet that if THAT has cancerized completely through, you can see through the floor pan, the gas tank is less than a sheet of paper, the rear wheel wells probably are only held on by the carpet that's glued to them on the inside, etc.
Consider it a warning that it's time to SERIOUSLY inspect the car for rot, and prepare to buy another chassis.
Joined: Aug 2006
Posts: 12,804
Likes: 103
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Transmission Mount
seen this happen before, the frame section rots off and drops the trans. If thats the case, like sofa said, the car is most likely rotted badly elsewhere and may be a goner.
post pics of the underside!
Do not drive the car in this condition.
post pics of the underside!
Do not drive the car in this condition.
Supreme Member
Joined: Jan 2009
Posts: 1,126
Likes: 0
From: Columbus Ohio
Car: 91 Z28,64ImpalaSS4094spd,67 Galaxy
Engine: Dart 415Profiler hd,cmprlrs,Hlly750
Transmission: Built 700R4, 3200 stall
Axle/Gears: 3:89 Moser 9"
Re: Transmission Mount
Oh my that sir is not good, get some pics up...
Thread
Thread Starter
Forum
Replies
Last Post
smokingss
LSX and LTX Parts
2
Mar 3, 2016 07:40 PM
theshackle
Transmissions and Drivetrain
3
Aug 23, 2015 03:49 PM








