Leaf Springs
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Posting Guru
Joined: Aug 2002
Posts: 1,493
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From: Great NW
Leaf Springs
Will rear leaf springs from a later model truck (80's) fit on the older model trucks (73-79)? Specifically, will heavier duty springs (on an F250 or F350) work on a measly ol' '74 F-100 with a 9" rear end?
Laughing Gas
Joined: Jul 2000
Posts: 851
Likes: 15
From: Elkton, MD
Leaf Springs
I had put a set of springs off a 99 superduty on a 78 f-250 4x4. So long as they are the same width, they should be ok, I don't think ford changed the length, but you should measure first.
Junior User
Joined: Sep 2002
Posts: 91
Likes: 1
From: Western PA
Leaf Springs
Besides checking the length you will also want to check the width an make sure the the newer spring are not wider than your truck has on it.
1973 F-250 Highboy, 360, 4 Speed, Dana 60's Front and Rear with 4:10's, 31x10.5 BFG AT on Hurricanes, Cobra 40 ch CB, Pioneer CD Player, 2 1/2" Duals through Flow Master 40-Series Mufflers.
1973 F-250 Highboy, 360, 4 Speed, Dana 60's Front and Rear with 4:10's, 31x10.5 BFG AT on Hurricanes, Cobra 40 ch CB, Pioneer CD Player, 2 1/2" Duals through Flow Master 40-Series Mufflers.
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Posting Guru
Joined: Aug 2002
Posts: 1,493
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From: Great NW
Leaf Springs
Does the width of the spring matter more because of the width of the shackles or the width of the spring perch on the axle itself?
Could a wider spring be made to work on a truck meant for skinnier springs?
Could a wider spring be made to work on a truck meant for skinnier springs?
Laughing Gas
Joined: Jul 2002
Posts: 843
Likes: 1
From: USA
Leaf Springs
If you're looking for more load carry capacity why not just install a good set of helper springs. Also, keep in mind you still will have 1/2 ton wheel bearings in the rear end.
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Senior User
Joined: Apr 2002
Posts: 482
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From: lake ariel usa
Leaf Springs
If you have 3 inch springs its a bolt in swap. If you have the 2 1/2 inchers you need to change front and rear hangers and the rear shackle. The center pin on the late model springs is about 1 inch farther back which really doesnt matter.
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