[79Bandt]

I recently took the 403 out of my 79 Trans Am to have it rebuilt. Since the engine is out of the car, I decided now is a good time to replace the motor mounts. The problem is getting the old ones out. The bolts for the motor mounts are screwed into nuts below the crossmember, right?How do I access these nuts? Right now I don't see any way to reach the nuts. So any advice on getting the mounts out is appreciated.

Thanks,
Steve

[79Bandt]

I recently took the 403 out of my 79 Trans Am to have it rebuilt. Since the engine is out of the car, I decided now is a good time to replace the motor mounts. The problem is getting the old ones out. The bolts for the motor mounts are screwed into nuts below the crossmember, right?How do I access these nuts? Right now I don't see any way to reach the nuts. So any advice on getting the mounts out is appreciated.

Thanks,
Steve

[yankeeralph]

There are access holes under the crossmember to access the nuts. I used a swivel head adapter for the socket with an extension to reach the bolts, had someone hold a box wrench on the bolt head. To put back in i used a small piece of tape to hold the nut in the socket to keep it at the top of the socket and keep from falling out. It was a real pain but a good light comes in handy to watch what the socket is doing. Have fun.

[sscherin]

If you plan on rebuilding the suspension then you can get at em with the lower control arms removed.

Otherwise go with Yankee

GURU: One who knows more jargon than you

Scott Schering
70 Firebird 455 12.34 @ 108.2
Http://www.pontiacs.org

[ChrisTransAm78]

I used a swivel as well but on some you can stick your hand in there with a wrench and let it lock against the metal once you start undoing the nuts...make sure not to have your fingers in b/t the wrench and the metal... :0 I also got new poly bushings for the mounts. They come with thick plastic tie straps . You have to drill the old 2 plates apart, clean em and paint em (if ya want) and then install the 2 plates with the poly piece b/t em using a vice, then zip tie em together to facilitate ease of installing. Make sure you get em synched down pretty good so your bolts don't have to be a mile long. When I reinstalled them I just left the plastic straps there in case I ever needed to remove em again in...

Here's 2 pics of em installed...I wish I would have taken step by step pics but its pretty straight forward to do em.

http://maxima1.abac.com/visualmarket...rmsInstall.jpg

http://maxima1.abac.com/visualmarket...msInstall2.jpg

Good luck!

http://www.visualmktg.biz/transam78/

[79Bandt]

Thanks for the replies. I figured I was going to just have to use a few extensions and it was going to be a little tricky. But wanted to make certain I wasn't missing something obvious.

Thought about using poly mounts too but I didn't think I was going to be producing enough power to need them.

Thanks,
Steve

[myckee]

Where did you get the poly motor mounts? I think energy suspension makes them, but only chevy ones.

[ChrisTransAm78]

They make em...they are listed I believe for the 455 but work just the same. I am sure I have a part number at home but am not there right now. Email me if you want it...

Thanks,
Chris

[73ta]

I've been looking for poly engine mounts for my 73 455. If you know of any available, please let me know.

Real 73 TA 455 4SPD G-Machine

[ChrisTransAm78]

3-1116 is the part number I got. Fit and looked like the original....

http://www.visualmktg.biz/transam78/