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Old December 24th, 2006, 02:39 PM
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Default Spring Bushing OD

Back...spring bushing O.D.Technical Forums » Open Discussion Archives » Back...spring bushing O.D.

Back...spring bushing O.D.
Post by m715jeep25 on Nov 5, 2006, 10:16pm

Hello all. I'm back after several years of just checking in every 6 months on the zone. My ride is posted in the members section under Roger M715 on Rockwells w/ 500 Cadillac engine.

Any ways I've started working on the truck again. Finally got back into a place where I could work on it and spend a little extra money.

Question: What is the inside diamter of the rear leaf springs (front & rear mounting locations of the rear spring)? Or I'll ask the same question in a different way...what is the O.D. of the spring bushing?

I'm adding rear steering and need to mount the springs under the chasis and change out the spring bushings so I can use a 9/16" bolt.


Re: Back...spring bushing O.D.
Post by brute4c on Nov 6, 2006, 10:35am

Hi Roger!!!! Great to hear from you!!

If no one else gets this info posted, I have a set of NOS springs at home and will measure then...
Re: Back...spring bushing O.D.
Post by m715jeep25 on Nov 6, 2006, 12:57pm

That would be great! I wanted to get the parts on order so I can tear things down and start on it this weekend. While you're looking at the springs could you check if the front and rear bushings of the "rear" leaf springs are the the same O.D. and if you have a NOS front spring pack I'll take those bushing O.D.'s as well....I might as well change them all while I'm at it.

Brute4c I think we met at one of the FE in Manhatton in 98-00. Time flies...and it all runs together.

Re: Back...spring bushing O.D.
Post by brute4c on Nov 6, 2006, 1:08pm

We sure did hs been a 9 year old daughter turned 4 while we were there....the National we had at Tutte Creek in 2001...great wheelin!

I'll get those measures for sweat!!
Re: Back...spring bushing O.D.
Post by brute4c on Nov 6, 2006, 10:17pm

OK...the front is different than the rear on the rear spring...

The bushing is "made" into the leaf...when I bought these, the metal sleeve is already in them...

I also have a spare frame and I checked the numbers versus the mounts on the frame...

Front eye of rear spring:

Bushing Id: .875 inch
Mount on frame OD: .875 inch
Width: 2.5 inch
Outside of bushing/inside of leaf spring eye: 1.090 inch

Front eye of rear spring:

Bushing Id: 1.000 inch
Mount on frame OD: 1.000 inch
Width: 2.5 inch
Outside of bushing/inside of leaf spring eye: 1.225 inch

The OD of the bushing/ID of the spring eye is as close as I can get with it in might be off slightly but I took great care to make sure I was at the edge and straight and measured several times...its gotta be pretty close...

One would have to press these pieces out and measure them to do better...

Re: Back...spring bushing O.D.
Post by m715jeep25 on Nov 7, 2006, 9:07am

This information was a great help! Thanks for taking time out of your day to help. It saved me lots of valuable fab time.


Roger ;D
Re: Back...spring bushing O.D.
Post by brute4c on Nov 7, 2006, 12:06pm

Best wishes on the project Roger, anytime I can are always welcome ya know!!!!


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