Pro-Comp 6.5" lift and Pitman Arm Question - Ford Powerstroke Diesel Forum
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Old 02-06-2012, 07:18 AM
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Pro-Comp 6.5" lift and Pitman Arm Question

I bought some 6.5" springs from a friend of mine for my 2003 F250 6.0. I know that I need a drop pitman arm. I ordered one from performace4trucks.com. The one i asked for said it was for a 4"-6" suspension lift. The one that the guy put on the order is a pro-comp 4" drop pitman.

First question is, is there a difference between the two and will a 4" work with 6" of lift?

Second, will I need bigger one if I decide to go to 8" lift?

Thanks in advance and pardon the newbie questions.
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Old 02-06-2012, 10:17 AM
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From my experience, the Pro-Comp 6.5 springs will need an 8 inch rear set up to sit level. I took out the bottom 3/8" plate AND the next two leafs and mine is still a touch high in the front, not much. Out back I have Pro-Comp 6" springs. In short, considering I took 1.5" of spring out of mine, they would be great with 8" out back.

I'm using a 4-6 pitman arm and a track bar drop for a 6" lift. Everything works pretty good.
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Old 02-06-2012, 10:23 AM
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Thats exactly what i was looking for. I had a feeling it would be ok but just wanted to make sure.

So with the 6.5" springs ill need to go 8" in the rear? I always thought that the rear need less lift than the front...
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Old 02-06-2012, 10:28 AM
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Also, i know that you are running 365 series tires on your lift with the bumper moved forward (Ive been researching tires lol), do yours rub on the leafs?

Im ordering a set of BFG KM2s and im torn between getting 345/75/16 or 375/75/16..
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Old 02-06-2012, 10:42 AM
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Quote:
Originally Posted by bwmtnbiker View Post
Thats exactly what i was looking for. I had a feeling it would be ok but just wanted to make sure.

So with the 6.5" springs ill need to go 8" in the rear? I always thought that the rear need less lift than the front...
When I had 3" hangers/add-a-leaf up front, it tail drug with a 5" block, hence the Pro-Comp 6" rear springs. I forgot this when I bought the 6.5 springs from my friend. I should have bought a 4" spring set.

Quote:
Originally Posted by bwmtnbiker View Post
Also, i know that you are running 365 series tires on your lift with the bumper moved forward (Ive been researching tires lol), do yours rub on the leafs? Im ordering a set of BFG KM2s and im torn between getting 345/75/16 or 375/75/16..
I was running 365s, Toyo quit making them. Anyway, they only hit the leafs at full lock, it wasn't that big of a deal. If I went that wide again, I'd be buying some 12 inch wheels. Even with the off set bead I wore out the centers first at 50psi.

Last edited by Karls03; 02-06-2012 at 10:45 AM.
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Old 02-06-2012, 11:09 AM
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Quote:
Originally Posted by Karls03 View Post
When I had 3" hangers/add-a-leaf up front, it tail drug with a 5" block, hence the Pro-Comp 6" rear springs. I forgot this when I bought the 6.5 springs from my friend. I should have bought a 4" spring set.
Ok, I gotcha now.


Quote:
Originally Posted by Karls03 View Post
I was running 365s, Toyo quit making them. Anyway, they only hit the leafs at full lock, it wasn't that big of a deal. If I went that wide again, I'd be buying some 12 inch wheels. Even with the off set bead I wore out the centers first at 50psi.
Yeah im not to worried about the full lock rub, rarely ever do I turn full lock. I may need to double check my rim width before I go to put them on...

Thanks for your help!
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