Rear Leaf Spring Bolts

What size are the center bolts for the rear leaf springs? There is no listing in the service manual. The reason I'm asking is because I am planning on removing both of the rear springs and cleaning and painting them to keep them from rusting and splitting. They are the factory grooved springs.

 

Those are round head bolts, you should be able to find them at a spring shop. I am sure they can match some up for you. The spring shop by my gave me a set free. I put C-clamps on the springs when I cut them just in case they want to go flying, or the bolt might go flying and hit you, just saying, Good Luck

 

My factory springs had 5/16 center bolts. I was able to get the correct round head bolts at napa.

 

Well the only spring shop in Birmingham closed a few years ago.

 

Measure The head and I will find them here , by Detroit and send them to you. I will need the head diameter, that is the only thing that matters, they come extra long so you can cut them. They need to fit into the hole in the axel plate. I don't have an axel to measure without going to my friends and checking an axel, and that is 20 miles to his barn. Let me know, I will help you. Good luck, Rick

 

Search Rancho spring center bolts on ebay. Tons of 'em.

 

Kaiserwillys sells them I wonder if MOOG does?

New Leaf Spring Center Bolt Fits 41-71 Jeep & Willys

 

I think this will work.
Jeep Willys M38A1 Rear Leaf Spring Center Bolt pair (2) WO-119935 NOS G758 | eBay

 

Those are really over priced. These are $2.11 each at napa auto. https://www.napaonline.com/en/p/RFDCB3

 

Those bolts look a bit short for a Jeep spring pack. Typically the leaves will spread when you remove the center bolt, and the bolt needs to be long enough to pull the pack together. Maybe they'd be ok on springs that had been in service for a long time.

 

Ok so I'm going to use the center bolts from NAPA. Now on to the rear Ubolts QTM jeep parts has ones that say they will fit a CJ3B but not a CJ5. If you look up the ubolts in the parts manual it says they will fit a CJ3B or CJ5/6. Also it's listed that they will fit the front also. Except the for the one long one that goes for the differential housing.

U-bolt Standard Front and Rear

 

Probably - mine even has OEM coil helpers to carry the 106mm.

But what is 'standard?" Ten leaves, twelve, seven, nine? There were many options.

 

Mine are factory 9 leaf grooved springs. Mine did have aftermarket coil helper springs mounted in place of the rear shocks. And there was no travel in the rear when driving it. You can see them in the picture below.

 

IIRC I used the Rancho bolts to put Mike's wedges together with my BDS springs. Those were about 5" in length and the length was needed to draw the springs together.

 

Are these the ones you used?

OPEN BOX Rancho RS8127 Leaf Spring Centerbolt | eBay

 

Yes ... if 5/16" is correct.

 

I don't know. But are seven of the 8 ubolts the same? Or are the front and rear axle tube sizes different?