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stock shackles

82crewcab

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I am looking for a pair of stock rear shackles for the rear leaf springs with 1 1/2 dia. hole for bushings. I bought a poly bushing set but the shackle bushings are too big. Let me know if you can help me out. Thanks
 
GM made 3 different shackle hole sizes.

1 3/8" i.d.
1 1/2" i.d.
1 3/4" i.d.

1 3/8" is common on the newer '81-on up trucks.
1 1/2" is common on the '80 and older rigs.
1 3/4" is common on heavier 1 tons. I've seen 1 3/8" on K30's, too, so its more a matter of measuring to see what you have.

Go to your local dealership and ask for shackles to fit a '75 truck. It should be 1 1/2" i.d.
I bought two pairs of them brand new and they were like $12 apiece.
 

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