Leaf springs
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Senior User
Joined: Jan 2004
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From: Midwest
Leaf springs
Could someone tell me if you can put 1-ton rear leaf springs onto a 1/2 ton frame? I am getting a 1-ton donor truck and was wondering if it was possible since I need new springs on my half ton. Both trucks are 1979 models.
Elder User
Joined: Jan 2004
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From: Eastern Pa
I replaced my 150 4x4 rear leafs with a new "heavy duty" set from Bronco Graveyard. They are supposed to measure same as stock. I could barely get the shocks back on. I had to jack the axle a little to get the lower mount in. I ended up removing the stock 3" rear blocks and the truck settled almost level.
Post Fiend
Joined: Jun 2002
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From: Atlanta GA
Going by my 1971 and later 80s/90s trucks and for the fact that 78-79 (4x4s) were unique years and I never owned one I say this.
It depends on what year to what year and what model to what model and if it is a 2x4 or 4x4. So ... basically you have to measure. With both being a 1979 I would say unlikely for it to be a bolt on with your 1/2 ton being a F-100/F-150 because the rear hangers/springs are so narrow and hung differently then a F-350.
If you remove everything from the donor truck, including the axle because the spring seats are spaced different (wider), it should work.
It depends on what year to what year and what model to what model and if it is a 2x4 or 4x4. So ... basically you have to measure. With both being a 1979 I would say unlikely for it to be a bolt on with your 1/2 ton being a F-100/F-150 because the rear hangers/springs are so narrow and hung differently then a F-350.
If you remove everything from the donor truck, including the axle because the spring seats are spaced different (wider), it should work.
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