2" block for the rear
Elder User
Joined: Jan 2007
Posts: 968
Likes: 0
From: Greenville, SC
A add a leaf would be the best thing to do, and new u bolts should also be used.
Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
No it isn't 100% necessary, b/c the old ones will still fit and work fine, but they are torqued down very tight and they stretch b/c of this. This weakens the ubolts, and can cause them to fail.
Remember they are the only thing holding your axle under your truck, other than shocks, and shocks won't hold that axle to good if the u bolts go.
Ok, that's why they should be replaced, but there are A LOT of people that reuse them. I reused my u bolts on my 77 F100 when I put some F150 springs under it about 3 years ago with no problems so for, but that doesn't make it right.
I seriously doubt they'll break/fail on you, but I was just making a point it should be done.
I did use new u bolts on my 79 Bronco, b/c I knew I'd be doing some hard off roading with it, and didn't want to take a chance.
I shut up now
Remember they are the only thing holding your axle under your truck, other than shocks, and shocks won't hold that axle to good if the u bolts go.
Ok, that's why they should be replaced, but there are A LOT of people that reuse them. I reused my u bolts on my 77 F100 when I put some F150 springs under it about 3 years ago with no problems so for, but that doesn't make it right.
I seriously doubt they'll break/fail on you, but I was just making a point it should be done.
I did use new u bolts on my 79 Bronco, b/c I knew I'd be doing some hard off roading with it, and didn't want to take a chance.
I shut up now
