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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Rear LEaf Springs

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Old May 20, 2008 | 09:05 PM
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rmalottwtes30's Avatar
rmalottwtes30
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Rear LEaf Springs

My truck is a 6.9 diesel and a 3/4 ton, both my front and rear leaf springs are bad, on the back I have a couple leafs broken and on the front there very saggy. I would like to get a set of back ones first and maybe use both sets to make one heavy duty set. Can I use any leaf spring off a ford? Also Id like to use a set that have the overload support on them...What trucks can I look at to know what will work on mine. Oh yeah mine is 4x4...
 
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Old May 21, 2008 | 12:49 AM
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Any 4x4 spring will work. They have 3 inch wide springs. The 2wd trucks have 2 1/2" wide springs. Don't think the front springs being arched upward means they are bad. The stock front springs came like that. Usuallly the bushings in the front springs are the main culprit for sagging.
 
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Old May 21, 2008 | 12:59 AM
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Thanks Dave...I will get to checking the bushings in the front...As for the back leafs how many leafs would you recommend me adding? I plan on using my truck for some hauling like gravel and dirt in the future...Should I add the Overload Springs also?
 
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Old May 21, 2008 | 08:12 AM
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You can't just add springs for extra capacity. The max load is based on axle strength.

Ever see a fully loaded truck with the broken axle and wheel tucked up in the fenderwell?

More springs = stiffer ride

Put F250HD or F350 spring packs in IF you have an axle that can handle the load.
 
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Old May 21, 2008 | 10:30 AM
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You can't just add springs for extra capacity. The max load is based on axle strength.
With the diesel, he should have a full floating dana 60


Ever see a fully loaded truck with the broken axle and wheel tucked up in the fenderwell?
Nope, around here I see cars with a snapped tierod, I think they were honda's.

rmalottwtes30:my truck has a main leaf with 4 leafs plus an overload
 
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Old May 21, 2008 | 12:21 PM
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Originally Posted by Franklin2
Any 4x4 spring will work. They have 3 inch wide springs. The 2wd trucks have 2 1/2" wide springs. Don't think the front springs being arched upward means they are bad. The stock front springs came like that. Usuallly the bushings in the front springs are the main culprit for sagging.
You are correct, the springs on the f250 4x4 are bent CCD stock. If you had them bent CCU the camber situation would probably be out of control with the TTB.

And I would bet on it being sterling 10.25 in the rear and dana 50 in the front...
 
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Old May 22, 2008 | 01:47 PM
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If you are going to be replacing anything, I'd say while you are there, go ahead and put some overloads back there.

I love mine. No matter what the load, this thing does not droop. Things like lawmowers or four-wheelers don't even affect it, period. A full load of wood brings it down a couple of inches. I don't know what I'd do without mine.
 
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