Motor mounts

CrustyJeep · Mar 27, 2006

I'm building new motor mount for the CJ. It's beyond time to get rid of the old GM bisquets.

I'm planning to use YJ leaf spring shackle bushings. They are 1.25" OD, .5" bolt, 2.5" wide. Anybody see a problem with these bushings for this?

426rider · Mar 27, 2006

Nope, They are not the biggest ones but they won't wear out too quickly. I ran chevy 1/2 ton bushings of similar size. I have seen people use f350 bushings before, wich are probably bigger but if ya got the yj ones they will work fine.

Comet · Mar 27, 2006

I figure if they can hold the entire Jeep suspension up, and get more abuse loads than engine mounts would, you should be ok. Heat is the only abuse suspension mounts would not normally be subjected to.

CrustyJeep · Mar 27, 2006

Yeah, not worried about stress on the bushings at all, but was worried they may be a little TOO stiff. They don't have much give.

I use them for everything else and love 'em

crash2 · Mar 27, 2006

The crashfab mounts have held up to many years of use along with all the other sets out there :redneck:

CrustyJeep · Mar 27, 2006

crash said:
The crashfab mounts have held up to many years of use along with all the other sets out there :redneck:

YJ bushings, or something else?

As a side note, YJ bushings are a pain to get in quantity. A better source for good bushings at a reasonable price wouldn't suck for future projects.

Roccrawler · Mar 27, 2006

use um if you got um :redneck:

wayne_fj40 · Mar 27, 2006

Just get some 3/8 chain Glen and go from your exhaust manifold and weld it to the frame.:redneck: I here Greenshields has plenty of it to and strong.I think this could be Crashfabs secret :stirpot: :redneck:

Comet · Mar 28, 2006

I have read that if you use urethane motor mounts, you should also use them for the tranny mount and same with rubber (ie rubbber/rubber). I think your frame is more of a concern than the motor, so I would spread the load as much as practical and keep an eye on the frame to mount interface for awhile.

CrustyJeep · Mar 28, 2006

The tranny/xcase is already sitting on a YJ spring bushing

So far that's worked nicely.

NotMatt · Mar 28, 2006

I want to see some pics when you get some progress made.

BTW, where are you getting a good price on the poly YJ bushings?

CrustyJeep · Mar 28, 2006

$11.78 for this last pair. I always get them at Central. One pair at a time.

crash2 · Mar 28, 2006

If you are going to polly bushing your motor mounts then its a must to do every mount that way or your just going to torqu twist stuff...

Jeepasaurusrex · Mar 28, 2006

XJ/YJ Track bar bushings work well too. I picked up a set for around $7 (urathane). :redneck:

Hip · Mar 30, 2006

Glen that how i made mine, i think i used some CJ bushings but its what i had that fit the pipe i had. been in there five years no issues. tranny mount is poly also.

i started a windshield thread here in tech.:super: