I installed the 5" trailmaster lift a while back on my blazer. The yoke hits the driveshaft really hard when I brake real hard in emergency stops.
I'm looking for tapered leaf spring shims but all I can find is shims with two alignment holes. I need the ones that have the tit and the hole. Does anyone know where I can find them?
I don't really want to use lift shackels because the leaf spring bolts are always seized.

 

I got mine from suspension connection. I think they were like $20.

 

sorry i had to, childish i know. read it above.


ok, now the serious part.

how do you know if you need shims?

i have the 5" bds lift and 2" shackle lift in back.
i just had to replace my u joints, the front set (close to tranny) failed just short of coming apart.
now i have never changed them since i have had the truck...7 years almost.
could it be coincidence?

 

There is too much of an angle on the driveshaft.. When I brake the diff. points down slightly due to axle wrap. The yoke from the t-case hits the driveshaft making a god awful noise. I can see the metal to metal contact on the yoke.

 

I'm not sure that you are going to gain much by changing the pinion angle at the rear diff. It looks like you need to drop the transfer case & transmission mount down some to correct that angle.

 

so, can the transmission mount be "shaved" or would that effect the structural strength of the mount.
mine looks similar but not that steep i think

 

Suspension Connection only has the ones that have the centering pins/alignment holes on both sides.