Quote:
Originally Posted by jdl71
Good info as always thank you. I was looking at how to change just the rear springs without changing the hangers and everything else, since like most all other parts for this truck no one carries rear leafs. Do you think the newer springs will fit in the old hangers assuming they are still usable?
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You're welcome.
No, the 73+ springs and shackles won't fit the 66 frame hangers. Even though the 66 and 73+ both use a 2 1/2 inch wide spring, the size difference of the hanger and shackle is substantial between the two.
The link below shows a listing for 60-66 replacement springs with bushings included. LMC has the shackles, pins, u-bolts and other things needed if you want to rebuild to stock.
https://www.generalspringkc.com/product_p/22-327.htm
After all these years your hangers will probably show some wear. But if all you want is a good reliable hauler then I would rebuild the rest and leave the hangers alone. For the way I'm going to use my K20, changing to the later style rear suspension seems like a good choice.