I installed my 2.5 blocks today after work, and found minor dogtracking after driving it home on the freeway.
The wheel is in between 12-1 o'clock, when going straight. So it is pretty minor.

Now, what I am thinking to shift it straight is to loosen one end of the u-bolts and torque the other end to try and scoot it that way. I'll do this left and right, but on opposing ends.
Any thoughts, and/or suggestions?

Sorry for lack of real pics, way to dark out.

 

is it possible the blocks are offset or the center bolt isnt in correctly?

 

The blocks have a front arrow, so I ruled that out.
I didn't touch the center bolt, but it is slightly misaligned when looking at the right top leaf plate. I remember it shifting a little left, right back, front, as I torqued it.
Yesterday, when I did the job, I dropped it a hair to give me clearance for the blocks, didn't see the center pin on the leaf pack. I just felt it. How easy is it to shift that pin? I know the block's pin is cast solid.

 

measure from the center of the bolt in the front spring eye to the spring perch on both sides, is it the same distance?

 

wait...did you do this job one side at a time, not completely drooping the axle off both leafs...basically....axle off of both leafs same time?

 

yes I did one side at a time. the right side was 100% on when I slightly leaned the left side to just barley squeeze that new block. I did not torque it down all the way to spec though at that time (only snug), until both blocks were in. (maybe that killed me)
The left side looks nice and center by looking at it. The right side you can tell the wheel is very slightly toward the rear.
I'll go check some spring distances to confirm what the eye sees, and the slightly off steering.

 

left side is about 23 7/8 (maybe a taste more)
right side is close to 24 1/8
1/4" difference at the most, prob a bit less.

At the time I thought all the aligning pins made it idiot proof, so I didn't measure at all during the job lol.
Tomorrow I'll set them both even.

 

i think this may be the problem. Im curious because i am planning to do this myself.

 

Problem solved!
I untorqued it all, then retorqued it, and like magic it all fell square right into spec. ( I admit I rushed it the first time, thought it was too easy to mess up)

I cranked the driver side bar 5 turns, and pass side 6 turns. driver side is sill a hair higher, but that's perfect.

I am now 34.5" front, and 37" rear on these stock 30" tires, I love the stance.
32's here I come

-I also removed the side steps, and mudflaps. Man it looks so sexy.
-1.25 blocks, and matching shorter U-bolts (for 31 spline only) are available for sale if anyone wants.

 

Hmm....maybe i need to try this out and fix my crooked wheel. (still not aligned after upper arm swap and superlift install. lol)