Front Coil Springs
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New User
Joined: Mar 2006
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From: Tucker GA.
Front Coil Springs
01 Diesel DRW 2wd. Had an alighment done, was drifting to the right. With 12K miles on uniroyal tires they found a slight tow-in problem they adjusted. They said the tire was more of the problem with a slight beveling to the outside edge of the right side tire. They swaped tires side-to-side and it has straightened the problem out temporarialy. They said the springs wear or weaken and that disturbes the front alignment. I have 87k miles on the truck and should expect to replace the front springs at 100k to keep a stable alignment. They didn't speak well of the way the Ford front end was put together. I pull a heavy trailer and the truck has been great. What about these front ends.
Mello-
Mello-
FTE Leadership Emeritus
Joined: Sep 2000
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From: Stephensville WI
I'm a bit confused. I didn't think that the coil springs did anything to locate the front tire on a modern 2WD independant front suspension.
To look at it another way, you could remove the front coil spring and the front tires doesn't change location in relation to the other suspension components.
To look at it another way, you could remove the front coil spring and the front tires doesn't change location in relation to the other suspension components.
Moderator
Joined: May 2005
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From: San Antonio, TX
It's a common problem with the twin I beam suspension that Ford has used on 2WD trucks since 1965. (F150s went away from twin I beams in '97) New shocks and urethane bushings and you should be good to go for awhile. The twin I beam trucks do well with a Bilstein or KYB shock.
Post Fiend
Joined: Jan 2002
Posts: 5,859
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From: USA
Okay ,a few ways to look at this,yes front coil springs sometimes can settle or weaken and change only caster/camber angles slightly.
you also have busings in the upper ball joint knuckle location that change it also.
What is causing most of your greif is the heavey trailer that you tow.
It unloads the front end weight and will cause tire wear .
What is the tongue weight you have ? your alignment shop can simulate it by before doing the alignment ,put weight in the bed of the truck over your rear axle .
Also if your trucks front springs are out of height spec on either side before the alignment is done.what they did is just a band-aid to the problem.
we've been seeing this for yrs with leafs or coils in the front.
Make sure your alignment shop knows you tow a heavey trailer.
Rich
you also have busings in the upper ball joint knuckle location that change it also.
What is causing most of your greif is the heavey trailer that you tow.
It unloads the front end weight and will cause tire wear .
What is the tongue weight you have ? your alignment shop can simulate it by before doing the alignment ,put weight in the bed of the truck over your rear axle .
Also if your trucks front springs are out of height spec on either side before the alignment is done.what they did is just a band-aid to the problem.
we've been seeing this for yrs with leafs or coils in the front.
Make sure your alignment shop knows you tow a heavey trailer.
Rich
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Joined: Dec 2007
Posts: 449
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the truks are very sensitive to cster and camber. lots of front end shoops dont know how to figure the proper cnsentric bushing in the king pins so they can get the proper alignment. it isnt just toe. they are selling you a dose of bull s--t. my o5 4wd pulled bad until the right shop set the caster camber spot on. no more pull.
