rear flip question

[Grim Reaper]

Peice of cake but don't waste your time trying to reuse the old parts. Summit and Jegs sell new ones for $14 and shipping. Unless your going to some real clean put mirrors under the truck job I'm not sure I would even bother removing the old ones. To tell you the truth uleaving the old mount is going to make it pretty well impossible to screw up the centering of the axle.

The idea with pinion angle is that the u-joints be withing about 1 degree of each other. It's easy to set. Truck on level ground. Axle bolted just tight enough to the spings to keep it in place. Weight on the springs so your at ride hight. Jack under the pinion.

If you have a 2 peice shaft take a cheap (like $3) angle finder and put it agianst the tube. Find the degrees off perfectly level (it will be about 3 degrees). On a 1 peice shaft with slip yoke put it against the rear seal. that should be 90 to the centerline of the output shaft.
Put the angle finder against the flat part of the yoke on the rear. Turn the yoke up till your 1 degree shy of what the down angle was. You do this because under load the pinion comes up on a leaf spring set up. So that degree down at rest will be gone under load will even out. If your going to put a traction arm on then make it the same angle.

Tack the spring purches to keep the angle so you can dissassemble and weld.
. Be carefull when you weld the purches on. You can warp the axle. Weld a couple inches and go work onthe other one and let the first cool a little.

As for offsetting the axle. www.offroaddesign.com and http://www.azkickin.com/ both sell offset blocks. Az Kickin is a machine shop and can custom spaes them as well as put angle in the block to correct pinion issues. I don't think they can make them any thinner then 1/2 inch. Standard block will let uon **** 1 or 1.5 inches.