Pro Comp install
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Laughing Gas
Joined: May 2011
Posts: 855
Likes: 40
From: SoCal
Thread Starter
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Laughing Gas
Joined: May 2011
Posts: 855
Likes: 40
From: SoCal
My truck is 27.5 front and rear. I just measured it 5mins ago. This is after thousands miles over the road. This is right where it was when I finished the job last year. So the issue seams to be your front. How many shims did you install? I have one 2 degree shim on each side.
New User
Joined: Jan 2021
Posts: 18
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My truck is 27.5 front and rear. I just measured it 5mins ago. This is after thousands miles over the road. This is right where it was when I finished the job last year. So the issue seams to be your front. How many shims did you install? I have one 2 degree shim on each side.
Fleet Mechanic
Joined: Mar 2019
Posts: 1,293
Likes: 164
Thanks. I bought the WFO shims but my mechanic said they didn't fit into the bottom of the spring pack, I guess the hole was too small. Apparently it needs to be drilled larger? Anyway I had told him I wanted the caster at 5.5, he got it too 4.5 with no shims. It's riding great. My concern is my back is almost 2 inches lower so we want to put the rear block in but it's tapered and can only go with the fat part at back because of the bump stop part. Right now it's driving awesome with no driveline vibration at all....that's with no shims front or rear. I just can't figure out why the factory tapered block is thick part at the back and everyone else says thick part goes towards the front on the rear axle.
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Laughing Gas
Joined: May 2011
Posts: 855
Likes: 40
From: SoCal
I would try and figure out why the front ended up higher. I have no blocks or shims in the rear either, and the truck drives perfect. How about your track bar? I installed a Icon adjustable.
New User
Joined: Jan 2021
Posts: 18
Likes: 0
I bought an adjustable Freedom off-road bar. Alignment is great and it's riding great, I just hate that the front is 28.5 almost 29 inches! I wonder if they sent me the wrong front springs, they were labeled 22210 but maybe they're the 24410's? Crazy. I'm at 27 in the back from center of the wheel to the arch which is what everyone else is too.
Junior User
Joined: May 2021
Posts: 76
Likes: 16
From: south arkansas, also sw l
Thanks. I bought the WFO shims but my mechanic said they didn't fit into the bottom of the spring pack, I guess the hole was too small. Apparently it needs to be drilled larger? Anyway I had told him I wanted the caster at 5.5, he got it too 4.5 with no shims. It's riding great. My concern is my back is almost 2 inches lower so we want to put the rear block in but it's tapered and can only go with the fat part at back because of the bump stop part. Right now it's driving awesome with no driveline vibration at all....that's with no shims front or rear. I just can't figure out why the factory tapered block is thick part at the back and everyone else says thick part goes towards the front on the rear axle.
I know the thread is kinds old, but I figured out the wfo shims today. They are made to be bolted onto the spring pack, not sat on. I realized this AFTER I drilled the holes out so the bottom of the spring pack would fit in it.
Long story short, new shims were ordered.
Lead Driver
Joined: Apr 2011
Posts: 8,259
Likes: 346
From: Northern California
I bought an adjustable Freedom off-road bar. Alignment is great and it's riding great, I just hate that the front is 28.5 almost 29 inches! I wonder if they sent me the wrong front springs, they were labeled 22210 but maybe they're the 24410's? Crazy. I'm at 27 in the back from center of the wheel to the arch which is what everyone else is too.
you can pull the bottom leaf out of the front packs
in the rear, did you use the block ?
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