Bolt size

[85ironhead]

Does anyone know what size of bolt I need for my springs. They are Skyjacker leafs for a 74 K5. I am having someone install them and he will have to cut the old off. I want to have the new ones ready.

 

[dremu]

The sexy ones are greasable (best with poly bushings so you never have to cut them off again), like

http://diy4x.com/cart/index.php?route=product/product&path=24&product_id=132

You can also get poly bushings with the bolts -- you might call ORD and have them send you the whole setup.

http://offroaddesign.com/catalog/hdshackles.htm
http://offroaddesign.com/catalog/greasebushings.htm

If you're sourcing locally, note that Kert says his are 5" long. In terms of diameter...

The front springs use 9/16" at the forward end and then two sets of 1/2" on the shackle. EDIT: Maybe... mine isn't exactly stock, so the 1/2" may be for aftermarket springs/shackles.

The rear springs should be 9/16" all the way around, depending on what you've got in terms of shackle, flip, or other modification.

-- A

 

[Avery4jc]

My shackles use 7/16" at the frame bushings and the leaf spring bushing. Energy suspension poly bushings and tuff country springs. My old superlift springs used a 9/16" like the front hanger did though so every setup might vary.

 

[cybrfire]

Front springs,

9/16" at the front
7/16" at the shackle end up till somewhere in the mid 80's. Then it went to 1/2".

Rear springs 9/16" throughout.

 

[85ironhead]

Front springs,

9/16" at the front
7/16" at the shackle end up till somewhere in the mid 80's. Then it went to 1/2".

Rear springs 9/16" throughout.

I looked at your greasable bolts. What is the benefit of that at the spring?