Alignment question

I recently lifted my truck with Bilstein 6112s and 5160s with an icon add a leaf in the rear. Also put on SPC arms in the fronts. I did the install myself. I have 33” skinny’s in Toyo MT.

Since the lift I have had trouble getting the truck aligned at a few different shops. I’ll attach the most recent specs to this post. I believe my issue is the thrust angle and rear axle toe is causing me to pull to the right, so the shops have been trying to compensate for that by setting the RF with about one degree of castor higher than the left side. After the last alignment the truck drives more comfortably but the castor on my LF is causing some rubbing on any sort of bump with my wheel turned.

My question is, should I bug the shop about loosening the u bolts on the rear axle and try to straighten that out (the center pins in each leaf are in place)? Or should I just have them align the toe in both fronts to match that of the rear axle and adjust castor to 2-2.5 degrees so I don’t rub? My goal is to drive straight without a ton of pulling but also be able to take a few bumps when I’m in the dirt.

Will I sacrifice tire lifespan if I run the fronts with a .3 degree toe the whole time?

 

Ask the shop to give you a bit more caster. I was rubbing on the RF plastic when turning right going over bumps or inclines on 265/70/17. After I did my lift they initially set the caster to 2.6-2.7. I went back today and had them set it to around 3.5-3.6 and now I don’t rub anymore. And you definitely want to be as close to 0 toe for the lifespan on tire wear

 

you will need to loosen the u-bolts and move the axle. I'm guessing one side is pushed forward and the other side is pushed back. The centering pins for the leaf springs do have a small amount of play and can cause this. It's the easiest place to start.

 

Same set up over here. Imo I would try to get camber closer to 0 also. Great set up good luck OP