subframe bushing mount repair [Archive] - Team Camaro Tech

: subframe bushing mount repair


jks67SS396
Mar 31st, 06, 05:39 AM
Guys,

Ive read what a lot of other people have done to repair their rusted out metal on the subframe body mounts. Seems like a lot of guys cut out the old metal and weld new metal in. Some weld the new "plates" to the top of the old metal.

It seems like most of the time this repair is done with the subframe off the car. Well, my subframe is in the car and i dont have the space to take things apart right now. So i wanted to know if this will work:

Can i just make a new square plate out of 1/8 or 3/16 just big enough for the 1.5" hole to be cut out of, cut the hole and slip the new metal onto the bottom of the subframe mount, reassemble, tack it in, disasemble and then fully weld the new metal in (on the bottom of the subframe mount). Then reassemble and repeat on the other side?

Is there any downside to this method? (welding the patch to the bottom of the mount)

By the way, Ive got DSE solid bushings in there now and will be keeping them

thanks guys
jeff

jks67SS396
Mar 31st, 06, 09:49 AM
anyone know?

clwilcox33
Mar 31st, 06, 11:27 AM
anyone know?

There are a half dozen threads detailing exactly how to fix this just recently, and probably several dozen in the last year. If you do a search for subframe I'm sure you'll get all of your answers.

jks67SS396
Mar 31st, 06, 12:25 PM
i looked through all the threads i could find and saw one that one guy wasnt sure if you could mount the patches on the bottom of the subframe mounts, but never saw a definite "yes" or "no" as to whether or not it is ok to mount the patch right on the underside of the mount instead of cutting out the bad metal or putting the patches on top of the mounts

ive gotten all the rust out of the hole and painted it a while back. the car never sees rain anymore. can i just weld the patch on the underside of the mount?

i dont think theres a structural or alignment or geometry issue with doing so, i just havent seen anyone do it that way and it would save a lot of time.

thanks

jks67SS396
Apr 1st, 06, 04:31 AM
?

ray moore
Apr 1st, 06, 05:08 AM
Hi jks67SS396

I have a thread on this subject over on the Body forum right now. My body is also mounted on the frame. My only difference is I AM going to just slide the metal ( 3/16 ) on top of the frame and weld. With the body on there is no way I can do any realistic cutting out of the old. I looked at 1/8 and then looked at 3/16. The advice was I could use either and that the slight lift of 3/16 should not matter. I'm still debating on using 3/16 or 1/8.
I figure I would make the template for the repair piece slightly bigger than the width of the frame so I could weld the edge better from underneath. I can also weld from the inside perimeter
of the worn out original hole.

Thanks
Ray Moore