The steering arms are the same for the 70 and 71 and up trucks. Held on w/ 3 studs/nuts. I paid $50 each for my used drums($60 shipping from CA) and when they are gone I'll go discs myself. If you can find an axle from a 71 to 87 GM truck and your in business, the biggest thing that changed is the GM 10 bolt front uses a metric banjo fitting on the caliper. The hard to flexible brake line fitting at the frame is the same.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs
1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX
1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears
1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now.....
1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone.
1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed.
1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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