Gearheadotaku
Gearheadotaku GRM+ Memberand PowerDork
7/29/17 10:26 p.m.

The pin/bolt the goes into the center of a leaf spring. Something special, or just a good quailty bolt? I'd like to remove the overload leaf from mine, but the nut won't come free, just turns the pin. I want to ask before I cut it off.

SkinnyG
SkinnyG SuperDork
7/29/17 11:10 p.m.

I've machined my own from mild steel when doing a unique leaf pack.

I've both seen and used Allen head cap screws.

I don't think it needs to be immensely ferocious metallurgy - if the bolt is going to break, it has a lot of support in shear by the u-bolts, but I have seen the bolts partially and sometimes completely sheared.

BrokenYugo
BrokenYugo MegaDork
7/30/17 12:33 a.m.

I think it's mostly there to locate the axle during assembly, the clamping load of the U bolts is what should be holding things in place.

Don49
Don49 HalfDork
7/30/17 5:56 a.m.

An allen bolt will work fine. I've done it with no issues at all.

Ranger50
Ranger50 UltimaDork
7/30/17 6:24 a.m.

You can get a universal from your Flaps nearby in the help! section.

chandlerGTi
chandlerGTi PowerDork
7/30/17 7:55 a.m.
BrokenYugo wrote: I think it's mostly there to locate the axle during assembly, the clamping load of the U bolts is what should be holding things in place.

This

gearheadmb
gearheadmb Dork
7/30/17 7:56 a.m.

You can buy them cheap as stated above. I wouldnt bother with making one. They are usually extra long to fit any spring thickness, just cut off the excess.

Dusterbd13
Dusterbd13 UltimaDork
7/30/17 8:00 a.m.

We used grade 8 bolts on the springs in the challenge car. Made the heads round on a bench grinder.

Gearheadotaku
Gearheadotaku GRM+ Memberand PowerDork
7/30/17 8:40 a.m.

looks like no worries then. Thanks!

Patrick
Patrick GRM+ Memberand MegaDork
7/30/17 9:24 a.m.

The allen cap screws from home derpot are likely way stronger than the center pins i bought. The only difference being the pins were fine thread and the regular store ones are coarse thread.

Streetwiseguy
Streetwiseguy UltimaDork
7/30/17 9:39 a.m.
chandlerGTi wrote:
BrokenYugo wrote: I think it's mostly there to locate the axle during assembly, the clamping load of the U bolts is what should be holding things in place.
This

You guys wouldn't say this if you had ever had the head break off one. They move quite a lot.

chandlerGTi
chandlerGTi PowerDork
7/30/17 10:15 a.m.

My warlock had both missing, I put a new Dana in with new leafs and all and never noticed a difference. It was OK horsepower in a short wheel base light weight vehicle.

bentwrench
bentwrench Dork
7/30/17 10:47 a.m.

Dorman makes and sells them

iceracer
iceracer UltimaDork
7/30/17 11:20 a.m.

Always use a proper center bolt. It has an extended head that fits into a hole in the mounting plate that locates the axle.

Tom1200
Tom1200 HalfDork
7/30/17 4:27 p.m.

You might want to take a look at the post I started on odd tire wear. As long as the head fits snugly in the axle you're fine if not you'll get movement under higher g loads. Of course I doubt one would notice on a street car.

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