Rear Thrust Angle
 

I took the truck in for an alignment since I got new tires and installed new front coil overs and rear shocks. Tech said alignment was fine except rear thrust angle was off and the only way it could be fixed was with a frame straightening. Truck has never been wrecked as far as I can tell. He said it probably wasn't worth messing with. What do you guys think of this rear thrust angle and have you ever tried to change it?

https://cimg8.ibsrv.net/gimg/www.f15...0c81ec1a2c.jpg

https://cimg7.ibsrv.net/gimg/www.f15...874f96829.jpeg
My truck has similar numbers, im going to align the rear axle and do an alignment to see if the steering will be straight after fixing it

It may not be worth messing with but if you want to try, the thing to do would be to loosen the axle u bolts and try to push the right side of the axle forward and the left side aft. For your numbers you need to move each side about 1/8 to 3/16 ” to split the difference.

is that reply to me or the owner of the post?

To the op. I didn't notice this was an older post. But your numbers will be pretty similar around 3/16 forward on the side that measures negative and aft on the side that reads positive.

someone told me to pull the axle back, the right side ig

If you move just 1 side then the amount is double what I said so 3/8". Without more measurements it's hard to know which side needs to move.
All this number being off will do is possibly make the steering wheel slightly off center when going down the road, but they should have accounted for this when they adjusted the front end.
Even if they didn't adjust it it my not be very noticable or affect anything else at a half of a degree. I've seen old trucks going down the road with the rear end shifted over visibly from the front they must have been multiple degrees of thrust angle out of alignment.

i will do an alignment check after moving the axle to see if its getting closer

Maybe you can help me...
 

I installed a front 2" leveling kit then took it for an alignment. The kit came with a 2" front spacer and a 2" rear block. I wasn't going to swap blocks for the rear at first but after looking at it I wanted a little more rake. So I swapped the factory 1.25" block for the 2" block that came with the kit.
Now, the drivers side sits about ¾" lower than passenger side. I got underneath truck to look to see if I seen any differences in the u-bolts or the angle of the bottom plate that the u-bolts bolt to or anything that stood out as our of adjustment. What I found was the passenger side wheel was 1/4" further forward than the drivers side (measured from tire to wheel well opening)
There's a bigger opening from tire to wheel well opening on the back side of the passenger side wheel than there is on the back side of the driver's side wheel. If that makes sense.
I feel If I loosen the u-bolts and try to shift the rear end a little that might get me squared back up. Does that sound right?

I would be surprised if adjusting fore/aft in the rear changes the ride height.
did you measure the new blocks or compare them next to each other? Sounds more likely that you have a 2" block on one side and a 1.25" on the other side.