Kelltrac IRS studs

[TeeLew]

Tracking says I'll have them on the 4th.

<Insert corny Star Wars quip here>

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[Scott]

I like the idea of these. But it's costly, and I don't see an option to ship to Canada.
My subframe is going to be lowered down considerably to do the front diff bushings. I'm considering @GTP's method and use some 250mm long 14mm x2 threaded 304 stainless rod I found online. Thread in and remove when done. I'll probably never lower the IRS again unless something else breaks. I'm getting to the point where I'm satisfied with the IRS now and also completely fed up working on it.

Kelly shipped mine to my US Cross Border Pickups address and I had them mailed from Cross Border to my door. I would remember if the cost was not resonable but I don't so it must have been.

 

[StangTime]

Kelly shipped mine to my US Cross Border Pickups address and I had them mailed from Cross Border to my door. I would remember if the cost was not resonable but I don't so it must have been.

Nice! I may buy this one day IF I ever have to drop the IRS again. I got it all back together last night after dropping the IRS a good 2.5 inches to get Steeda's diff bushing kit installed. What a pain in the ass. I solemnly swear I never want to do that again.

 

[K4fxd]

I didn't realize these were all thread. Grade 10.9, should be ok to run permanent, right?

 

[StangTime]

These are intended to replace the OEM subframe bolts. Grade 10.9 is the same grade as the bolts.

 

[K4fxd]

These are intended to replace the OEM subframe bolts. Grade 10.9 is the same grade as the bolts.

I should have looked at the picture better, I thought these were proper studs.
To have the same strength wouldn't the all thread need to be grade 12?

Probably nothing to worry about...

 

[StangTime]

I should have looked at the picture better, I thought these were proper studs.
To have the same strength wouldn't the all thread need to be grade 12?

Probably nothing to worry about...

There is this option if you can find a shop to do some machining: https://www.mustang6g.com/forums/th...or-rear-subframe-mounting.151078/post-3102156

 

[S550 Recon]

A fastener is only as good as, it's threads. Fasteners are designed to provide proper clamping force, that is how systems being fastened are engineered. If a fastener was designed to take shear loads in an application, then the proper clamping force was not implemented and parts would fail, continually. "All thread" (full threaded fasteners, more properly) in the proper grade (10.9) will provide the exact same fastening as a stud or bolt at the same grade with a shank. It is basic engineering.

Shanks are for cost savings, aligning (when possible) and additional strength in shear. All of which do not matter a single bit when mounting an IRS subframe to a chassis.

Last bit of engineering. The distribution of the clamping force through an entire threaded fastener is equal throughout it's length, where partial threaded unequally distributes the force more on a specific area (threaded). Sign me up for full thread

 

[GTP]

I updated my post #4 and included a photo.

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