1968 Rear Leaf Spring Bushings Help!?

[Tireguy87]

I have a ‘68 K20 that I’m just trying to get back on the road. I cannot for the life of me find a set of leaf spring bushings to fit the wider rear springs. I’ve been on the phone with places like Energy suspension, MOOG, and a handful of random spring shops folks have recommended.

I’m looking for someone who has an actual part number for something that will work. Surely there’s a bushing out there for something else that will fit these trucks.

For those unaware, the 67/68 rear springs were 3.25” at the eyes. When you order a “kit” to fit 67-72 pickups and you have these wider rear springs, none of the kits will work.

[Sheepdip]

Do you have an old fashioned spring shop close by that still makes springs? I'm sure they would be of help to you.

[Jason Banks]

See the receipt Clay posted in his build thread here:

He and I have 67 K20's and just redid the springs.

https://67-72chevytrucks.com/vboard/...&postcount=150

[Jason Banks]

Ok, I'm looking at it trying to figure out which one is the one you need, and not sure. I do know the RB-117 is what we used in the Shackles.

Maybe it's the RB-98, check the dimensions. That's GM PN 3887751 also.

[Jason Banks]

Here's a snip from the GM Parts Catalog. You can still get 3887751 from the dealers.

[Bob B.]

This might be what you are looking for:

https://www.rareparts.com/CLSB01A113...SPRING-BUSHING

[Tireguy87]

I’m going to try a set of the rb98. Those dimensions seem to be correct.

[67km1590]

I also used the RB98 bushings but had to trim some off the ends to fit hangers then put the notches back in with a cut off wheel on my K1500. I also used the RB117's in the shackles.

[Jason Banks]

67KM1590 it's funny you mention that. I ground the nubs off the ends of the bushings to narrow them up a little too. I should get one of the 3887751 from the dealer to see if they are as wide.

[Tireguy87]

The rb98 bushings fixed me right up. I really appreciate the help. That little project had me hung up for a few days. I had to grind the nubs down as well. No biggie. Thanks all!

[tdangle]

Believe it or not, a year ago I did mine on my 70 C20 with HD rear suspension. Got everything I needed from Rock Auto