Hey guys, I was n the market to get bushings for the suspension and subframe.

So I searched around, and somone mentioned that if I get the adj rear camber arms, it causes the rear swingarms bushings to bind. So I guess spherical bearings are the answer. Iv'e always been a DIYer, does anyone havea writeup of them doing the spherical bearings themselves? There are a quiet a few good bearing companies with many different sizes to choose from.

Also, Ive been looking around for rear subframe bushings, and the only ones I found were really pricey. I was trying to contact MMR direct, but I cant seem to get a hold of them, or know what happened.

 

Not sure you are going to be able to buy all the parts for the rear spherical bearings, sure you could get the bearing but the sleeves would need to be machined. Take a look at the ones from AWR www.awrracing.com - I've been happy with them. The offset washers you don't use unless you also get the adjustable toe links. You use the stock cam lock washers instead as you'll need to adjust toe. AWR also has some aluminum subframe mounts, Mazdatrix has delrin.

 

With some measuring instruments, a control arm sans bushing and a bearing catalogue you should be able to figure something out. I'd get the biggest bearing that'll fit in the hole, then bush the inside to fit the bolt if necessary. That'll be the strongest way to do it.

 

What is the usual clearance for pressing in steel-steel?

Thanks for the replies guys. Im ona big budget right now, my work is cutting hours instead of laying people off. Damn strikes

 

I'd say .003 to .007 max. Freeze the inside piece and heat up the outer and you shouldn't have much problem putting them together. A proper bearing press works nicely also. I wouldn't go with too much interference, lest you create too much stress on the casing and invite failure.

As far as making your own casings, you can capture the bearings in the sleeve and weld some inserts on each side. Or you can call Mike at ISC Racing (www.iscracing.net) and order some up. I've got them on my race car and they're well done. You can just send him you old ones as cores.

 

Cool, thanks. Yeah, I contacted the people on that website if I could jsut buy their bearings, but he told me it required machining and welding.

BTW do you have pics so I can get a better look at it? Thanks

 

Yeah, but the beauty of it is they're already done. And they work!

Prior to my hooking up my shocks, I ran the arms fully up and down their travel. I can say there is virtually zero bind so they are absolutely worth it.

I'll see what I can do on the pics, but mine are installed and on the ground so it may be tough.

 

No problem. I hear that polyurethane bushings go bad very easy when they bind. Faster than rubber. How is delrin with bind?

I really want to change all my bushings on my car. Im getting my dailey driver car running, and I wanted to freshen up my rx7.