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The upper blocks are factory. Lowers are not.
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Is this suspension lift height equal to those two blocks? Or is it added to something else too? Just talking about suspension lift not body lift.
If I take a block out (assuming just one block is safe) how would I lower the front to match it?
That is an option. However, that single tall lift block adds a lot of leverage to the springs for axle wrap during hard acceleration and deceleration. It’s still not a great idea.If you want to run the rear height the same, on option is to get a SINGLE lift block (of whatever height you want). The factory one has the bumpstop, but non 4x4 trucks don't use that. The bumpstop for them just sticks down from the frame and (presumably) contacts the axle tube, before anything bad happens. If you can't find a lift block with the height you want and an integral bumpstop, then you likely can get away without running a bumpstop at all, if you don't routinely carry a ton in the back, or jump the truck off-road.
The advice to get NEW u-bolts (doesn't matter who they are from) is because the u-bolts can stretch, fatigue, etc. Not knowing any better I re-used the originals when I lifted my truck, but it's been so long and they've pretty well rusted beyond the point that they could vibrate loose, so I'm not gonna mess with them.
Anyway, you are correct and thanks for pointing that out.
If you want to run the rear height the same, on option is to get a SINGLE lift block (of whatever height you want). The factory one has the bumpstop, but non 4x4 trucks don't use that. The bumpstop for them just sticks down from the frame and (presumably) contacts the axle tube, before anything bad happens. If you can't find a lift block with the height you want and an integral bumpstop, then you likely can get away without running a bumpstop at all, if you don't routinely carry a ton in the back, or jump the truck off-road.
The advice to get NEW u-bolts (doesn't matter who they are from) is because the u-bolts can stretch, fatigue, etc. Not knowing any better I re-used the originals when I lifted my truck, but it's been so long and they've pretty well rusted beyond the point that they could vibrate loose, so I'm not gonna mess with them.
Never thought about that. Since the whole thing has been lifted, there's no telling, as I'd assume the shocks were replaced as well.Non 4wd's use the axle for the bumpstop to catch, the big tab on the 4wd block just replicates that for the 4wd's.
If you don't have a real bumpstop your shocks become the bumpstops.
I'm gonna paint my truck pink and put a unicorn on it to celebrate! LOLWell MikeG, you won the internet today.
We are not recommending just pulling out the extra blocks. We are recommending removing the extra blocks and replacing shackles, etc. with different ones. That retains the current ride height with safer engineering and the shocks are unaffected.Never thought about that. Since the whole thing has been lifted, there's no telling, as I'd assume the shocks were replaced as well.
If he puts in a lower (single) lift block then it would be a rude surprise if the shocks bottomed out and blew apart, or ripped the mounts off the axle.....