Quote:
Originally Posted by 1958Warrior
I've seen tons of 4x4's lifted up with steep angles on their drive shafts, got me thinking it has to be hard on their u joints.
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My truck has 74 K10 axles on the stock springs (mounted on the bottom). To get the truck level the back has 4" lift blocks, with an angle to point the pinion up. The engine/trans has the 4 degree down angle, I have never measured the pinion angle, but know they are not the same. I drove the truck from 1985 to 2000 as my daily driver, averaged 7K mile per year about 70% in town, rest on 2 lane roads to get to the off-road areas I camped and hunted. In town and on the 2 lanes it saw lots of 75 mph. In that time I never had any vibration or problems with the driveline or u-joints; no tranny or pinion seal issue either. I inspected them changed the grease and put them back in there is no slop. The drive line was built by a local guy that specializes in off-road and race cars.