rear leaf spring centre bolt
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CF Veteran




Joined: Mar 2016
Posts: 3,816
Likes: 725
Year: 96
Model: Cherokee (XJ)
Engine: 4.0
So a 17 yr old smashed me hard from behind, striking a wheel, and driving into the wheel well.
This (presumably) sheared the centre bolt of (both) rear springs
Where do I obtain replacements ? (for a D35)..but springs are 2" lift and have and extra leaf
If they are hard to obtain, can I modify another nut & bolt, whats needed?
thanks in advance
(my jeep is wrecked, but I undid the u-bolts, yanked the axle bolts back with another 4wd, and drove it 2 miles home)
It may end up on my rural block as a unreg off-roader, but hoping to salvage & swap some good parts first
Its a real bummer, spent 2 yrs getting it smicky..looking at another '96 soon, they are getting scarce
its a miracle the other dude was not hurt
This (presumably) sheared the centre bolt of (both) rear springs
Where do I obtain replacements ? (for a D35)..but springs are 2" lift and have and extra leaf
If they are hard to obtain, can I modify another nut & bolt, whats needed?
thanks in advance
(my jeep is wrecked, but I undid the u-bolts, yanked the axle bolts back with another 4wd, and drove it 2 miles home)
It may end up on my rural block as a unreg off-roader, but hoping to salvage & swap some good parts first
Its a real bummer, spent 2 yrs getting it smicky..looking at another '96 soon, they are getting scarce
its a miracle the other dude was not hurt
Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 740
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
You can use any grade 8 bolt thats head fits into the locator hole in the axle housing and/or u-bolt plate. It's been quite a long time, but I think I used grade 12 socket cap screws when I put 3-leaf packs in the back of my 67 Camaro. With that job, I had to drill the unileaf for the bolt because it only had a little pin on it. You can probably get the proper ones at any spring shop. They are no big deal. All they do is keep the leaves centered and located on the axle housing. As long as the u-bolts are tight, they'll never have any tension on them.
Last edited by dave1123; Sep 20, 2018 at 04:30 AM.
CF Veteran
Joined: Aug 2008
Posts: 6,588
Likes: 495
From: Chico, CA
Year: 1986
Model: Cherokee
Engine: 4.3L with headers and full 3" exhaust system
I respectively disagree with using a grade 8 bolt as a center bolt. The center bolts are soft and flexible for a reason. They need to accommodate a flexible spring. Grade 8 bolts are brittle and will break after bending just a little. You can get center bolts at any good auto parts store. I buy mine locally at NAPA
Senior Member
Joined: Jul 2018
Posts: 672
Likes: 28
From: Evart,Mich.
Year: 2001
Model: Cherokee (XJ)
Engine: 4.0
Correct grade 8 are too hard. any part store should have them or be able to get them. be sure to get them longer then you need! if you need 4 inch long then get at least 6 inch or longer and so on.
Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 740
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
Ya see, you can't fool a toolmaker! Grade 8 isn't as hard as you might think! Grade 12 is another kettle of fish. Hardware Grade 5 is liable to snap as you compress the leaves. Besides, once they are under the U-bolts they don't move at all. At that point you're only concerned about the shear strength of the head.
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CF Veteran




Joined: Mar 2016
Posts: 3,816
Likes: 725
Year: 96
Model: Cherokee (XJ)
Engine: 4.0
Thx folks,
damaged one has an aftermarket spring pack with at least on extra leaf.
There is a local specialist fastener supplier, can use cap headed bolts with hex key, high tensile
Once I take it apart, can tell what I am after
should have a replacement '96, back on the road within a week or two
this one will now be a dedicated trail-rig/parts mobile
damaged one has an aftermarket spring pack with at least on extra leaf.
There is a local specialist fastener supplier, can use cap headed bolts with hex key, high tensile
Once I take it apart, can tell what I am after
should have a replacement '96, back on the road within a week or two
this one will now be a dedicated trail-rig/parts mobile
Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 740
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
What did I tell you guys? Standard industrial Socket Cap Screws are Grade 12 minimum and the head size fits right into the locator dowel hole on the axle housing. Just remember to match is with at least a Grade 8 nut!
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