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Old 07-30-2013, 08:52 PM   #1
eagleuh1
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Balljoint torques?

Anybody know the torque specs for 85 3/4 ton C20 ball joints, upper and lower on the ball nuts , and upper for the 4 mounting bolts to upper control arm. Trying to get my disc conversion done, can't find the specs. Mounting on my 68 C20. Thanks. Jim
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Old 07-30-2013, 09:20 PM   #2
SS Tim
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Re: Balljoint torques?

If you want, here is a link for the square body service manuals that cover most years except 85. He does however have both 84 and 86 along with many others.
http://67-72chevytrucks.com/vboard/s...d.php?t=545416

The 67-72 manuals are here.
http://67-72chevytrucks.com/vboard/s...d.php?t=558016
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Old 07-30-2013, 09:50 PM   #3
Rufton
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Re: Balljoint torques?

MOOG UBJ:
1/4" 10-14 ft.-lbs.
5/16" 14-19 ft.-lbs.
1/2" 55-65 ft.-lbs.
5/8" 75-90 ft.-lbs.
9/16" 60-80 ft.lbs.

MOOG LBJ:
7/16" and 12 MM 40-55 Ft. Lbs.
1/2" 55-65 Ft. Lbs.
9/16" and 14 MM 65-75 Ft. Lbs.(except Aluminum knuckle).
5/8" and 16 MM 75-90 Ft. Lbs.
11/16" 90-100 Ft. Lbs.
3/4" 100-120 Ft Lbs.
18 MM 100-120 Ft. Lbs.
Vehicles with aluminum knuckle 50 Ft. Lbs.
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