Spring Pack Center Pin

[tvince]

So is there any special propertys to a spring pack center spring other than the round alighnment head.
I am installing my new 3" Black Diamond Springs replacing the RC and need to install some caster shims and the BD uses a 5/16 center pin.
It seems to me that a good 5/16 allen head would do the trick just fine.Or a grade 8 hex head ground round.
But just wanted to check collective knowledge.
Thanks
Tvince

 

[IOPort51]

have you ever seen a car going down the road at an angle?? It more than likely has a sheared spring pin and one of the axles is not square with the other. This may seem like a bad thing but the pin can be replaced, the spring perch, not so much. I would think of it as a shear pin, not to be harder than the spring perch. I would go with a grade 5 my self and that would be why.

So is there any special propertys to a spring pack center spring other than the round alighnment head.
I am installing my new 3" Black Diamond Springs replacing the RC and need to install some caster shims and the BD uses a 5/16 center pin.
It seems to me that a good 5/16 allen head would do the trick just fine.Or a grade 8 hex head ground round.
But just wanted to check collective knowledge.
Thanks
Tvince

 

[tvince]

Thanks IO thats the kind of knowledge I was lookin for, I can see finish-in this mutch anticapated swap before the weekends out, And still have plenty of time to appreciate all the Mothers in my life!

 

[coldwater]

I use G-8 bolts and grind the heads round. If your U-bolts are properly torqued and re checked they should never get loose enough to be moving around on your perches.

 

[tvince]

So do these "pins" serve any function other than alignment to the mounting holes in the perches and u-bolt plates?

 

[IOPort51]

They do a pretty good job of holding the springs together until the U-bolts are tight.

So do these "pins" serve any function other than alignment to the mounting holes in the perches and u-bolt plates?

 

[IOPort51]

I guess it's mostly when some citizen broadsides you or you loose control in the rain and hit the curb pretty hard that the bolts get sheared, I don't see any way you could break one just driving or even heavy wheeling. I think it is just a good idea to have an expendable part in every system kind of like a fuse or, like I said, a shear pin.
Think about it this way, I would rather break a U-joint than a drive shaft, a drive shaft than an axle shaft, an axle shaft than a ring gear. This is just me but when you replace grade 5 bolts with hardened bolts just give a thought to what is going to break if it doesn't.

I use G-8 bolts and grind the heads round. If your U-bolts are properly torqued and re checked they should never get loose enough to be moving around on your perches.

 

[BajaEdition]

have you ever seen a car going down the road at an angle?? It more than likely has a sheared spring pin and one of the axles is not square with the other. This may seem like a bad thing but the pin can be replaced, the spring perch, not so much. I would think of it as a shear pin, not to be harder than the spring perch. I would go with a grade 5 my self and that would be why.

x2
using grade 8 hardware where ever it is not needed can be a bad thing, I have seen guys who tried it cause it was hard and ruined stuff. I would use grade 5 here.