SUA spring perch angle

[kro10000]

I'm going to be welding the perches on my XJ d44, but I need to know the angles that the perches are gonna sit at.

Thanks guys

[kro10000]

And its for my 89 MJ, the axle is from an XJ

[johnnyc]

You should bolt the axle up under the truck, set the pinion angle where you want it, tack weld the perches, then take the axle back out to finish the welding.

[kro10000]

The problem being that I need to avoid downtime as much as possible, I'm hoping to find the factory spec

[HOrnbrod]

There is no factory spec - the pinion angle depends on amount of lift, LWB/SWB, etc. and varies by rig. Johnnyc is correct if you want to do it right.

[Pete M]

are you lifting the truck at all, or is it just an axle swap?

 

you could just measure what the truck has now and then use that number on the new axle. :thumbsup:

[kro10000]

Truck is stock height, with 2wd leaves, swb... I'm just swapping the axle for now, but Ill probably just do what you said Pete, I was just wondering if anyone knew what they came like from the factory

[HOrnbrod]

Errr, forget what I posted above kro. I read the title as SOA, not SUA spring perch angle. :dunce: And yes, do what Pete says. :cheers: