first time doing it, I pulled the intructions out of the box and it just doesnt seem right. heres what it says.

install the spacer and torque the pinion not to 125 foot pounds. At this point perload should be loose.

my comment 125 foot pounds wtf that cant be right.

2. remove spacer and shimsa. reduce this shim pack thickness in.002 increments and intall untill the proper bearing preload is achieved.

the shims that come with in come in .010 increments so how the fawk can you do that.

Can some one give me the right way to do this.

 

I had a guy help me when i did mine, but this is what we did.

Take out your old setup. We reused the old pinion gear, just to get it right. Anyway, use just your pinion gear, the bearing, and the solid spacer and shims. Put all of that in, torque the pinion nut to the 125 ft. lbs. You have to hold on to the pinion gear so it doesn't turn, and torqur the pinion nut with the pinion yoke on. I can't remember what the preload should be at, maybe like 25 in. lbs? The preload is measured after you torque the pinion nut. With nothing holding the pinion gear, put your torque wrench on the pinion nut and turn. This should be around the 25 in. lb. setting (If that is the correct preload number). I think mine was a little tighter than that. Once you do this, just try and turn the pinion yoke (that holds the driveshaft), if you can't turn it, then you need to remove a shim or 2. There should be some resistance.

I hope this all makes sense. It's easier to do, than to explain. But, if you have any more questions, i'll try and answer. Good luck.