dropmech
Puddle Pirate
if you do both the upper and lower you can push the rear axle back to center it in well.
NOTE= Buying only lowers will give you so much negative pinion angle truck will vibrate bad. Had a guy that just bought lowers from a online place and moved the axle so far back to try to center pinion was facing like -8. I always set people up with both upper/lowers. Make lowers 9/16 longer and uppers 1/2 inch longer.
Great info. THanks!