Pinion angle

if your trans is 2 deg down.rear pinion shoud be set at 1 deg down,that way under drive conditions the rear pinion will rise up 2-3 deg.making them parallel (sp)

If that is the case do you guys suggest I cut the perches off or do you think a 4* shim would work. Its possible the shim may be to large and not allow for the locating pin to seat on perches. This is just for planning purposes as I still need to order my new 6 Leaf +1 EPSO's and see how the -5* looks before I make any changes but chances are I will need the shims or re-weld some new perches.