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Old 07-15-2019, 08:03 PM
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Tigger4X Tigger4X is offline
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Question Leaf Spring Center Bolt / Pin - what diameter?

I haven't pulled the springs out from under my truck and I need to order the center bolts to install an AAL / Add A Leaf to the rears. None of my local McParts stores have them in stock so I have order them. A "search" of the site hasn't helped. Does anyone know what the diameter of the bolt is supposed to be? Does anyone have a pair of springs off their rig or one that's loose from a stock pack? TIA!!


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Old 07-15-2019, 09:07 PM
wiley-moeracing wiley-moeracing is offline
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Napa should have them, either 5/16 or 3/8.
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Old 07-15-2019, 10:30 PM
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Quote:
Originally Posted by wiley-moeracing
Napa should have them, either 5/16 or 3/8.


I've found those sizes, but which one is the correct one? If I go with the 5/16" then I have a 50/50 shot, but they could be too thin and with the 3/8" they could be too large. I could buy both sizes, but I need two sets and dont want to get stuck with special ordered parts I cant return.
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Old 07-15-2019, 11:55 PM
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just measure them.
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Old 07-16-2019, 04:22 AM
wiley-moeracing wiley-moeracing is offline
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My local Napa keeps them in stock, no special order needed. They should be 3/8 if it is a later model. You should be able to see the bottom of the bolt through the leaf spring to verify what you have, same front or rear.
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Old 07-16-2019, 08:37 AM
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Quote:
Originally Posted by wiley-moeracing
My local Napa keeps them in stock, no special order needed. They should be 3/8 if it is a later model. You should be able to see the bottom of the bolt through the leaf spring to verify what you have, same front or rear.

Napa here doesnt have them in store. They offer Rockford brand center bolts; never heard of them before. I clicked on each individual item they show and they dont give the bolt size for some weird reason. And like everybody else it says they have to be ordered for in-store pick up. I guess floor/shelf space has become more and more of a premium. At least around here.
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Old 07-16-2019, 08:30 AM
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Quote:
Originally Posted by babywag
just measure them.


Am I some.kind of maroon to you Tony? If I could get a tape on them I wouldn't be here posting up.
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Old 07-16-2019, 10:07 AM
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Quote:
Originally Posted by Tigger4X
Am I some.kind of maroon to you Tony? If I could get a tape on them I wouldn't be here posting up.

Then stick a 5/16 or 3/8 bolt up there and compare it if you cannot tell the difference.

Jeep used both, depending on year/spring rating/etc.
Who knows if your springs are still stock?
I have seen both sizes used on SJs
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