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06-20-2022, 07:45 PM
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350 Buick
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Join Date: Jan 15, 2004
Location: TUG HILL, NEW YORK
Posts: 1,490
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REAR PINION ANGLE
What are you guys running for a rear pinion upward angle? I think 8 degrees up is about right and the engine about 8 degrees down.
Does this sound about right?
__________________
1977 CJ 7 360 T-18 IHC D300 FARM TRUCK NY
1985 CJ 7 AMC 401, CLARK 285SV 5 SPEED, DANA 60, DANA 44, RUBICON 4.5 LIFT. 37 KRAWLERS
1987 J-20 401 90% COMPLETED.
1985 J-20 360 6 inch lift, 37's plow truck
1986 J-20 360 stock well rusted plow truck
1970 AMX CURRENT PROJECT
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06-20-2022, 10:28 PM
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304 AMC
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Join Date: Apr 26, 2012
Location: Lompoc and Sunland, CA
Posts: 1,781
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That sounds right unless a CV joint is involved, then the other joint should be at about zero degrees regardless of the angle through the CV joint.
__________________
Sic friatur crustulum
'84 GW with Nissan SD33T, early Chev NV4500, 300, narrowed Ford reverse 44, narrowed Ford 60, SOA/reversed shackle in fornt, lowered mount/flipped shackle in rear.
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06-21-2022, 09:09 AM
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350 Buick
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Join Date: Jun 12, 2006
Location: Boise, ID
Posts: 1,114
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Some will recommend setting the pinion 1 degree down, as it will raise slightly under load with leaf springs.
__________________
There are 2 rules to success in life...
Rule #1: Don't tell people everything you know.
1971 J-4700/Buick 350 Stage 1/TH400/D20/D44/D60/Koenig PTO Winch
2005 LJ Rubicon Pretty close to stock
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06-21-2022, 09:37 AM
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258 I6
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Join Date: Apr 13, 2022
Location: Apache Junction AZ
Posts: 293
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8* sounds a bit high, as the pumpkin will also rotate up a little, when under torque while driving.
Just make sure to check your math before locking in your final answer 
__________________
'81 CJ5 Base, 258 I6, MC2100, T176 4 spd, 300 TC, D30 Front NT, 3.31, 2-Piece AMC 20 rear NT, 3.31, 4" high arc spring lift
'84 Grand Wagoneer, 401 V8 (.030 over), MC2150 HA Comp, 727 auto, Selec-trac NP229, AMC 20 REAR - D44 FRONT - WT 3.31, 4" high arc spring lift
Rather be driving, than waiting to be modified
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