un even tilting body???

[k5 krawler 50]

I recently swapped the one tons under my blazer over the summer, and when i did that i also put on the new lift. After i put it on, the drivers side tilts lower then the pass. side. WHat would cause this, since everthing on the suspension is brand new? I will try and get pics up asap to try and show what i'm talking about, but it looks like the drives side sits lower then the pass. side by about1-2"..

 

[chevysmithz71]

First make sure you are on a level surface. Then measure everything on the suspension comparing one side to the other. Maybe check tire pressure is kinda even. Is it an all spring lift or blocks, shackleflip???? See whatyou can find.

 

[k5 krawler 50]

i'm running lifted 52's up front, a shackle flip in the rear with a johnny joint, along with 4" lift springs and a 1.5 zero rates in the rear, and new spring perches welded on the axle..the ground is not level, but it doesnt not slope that much.. here is a pic rite after i did the swap, and the other pic i will try and get up is more recent and shows it a lil better

here is the other pic, sorry for the blurriness, its actually a pic of a pic...( dont have a scanner) this pic i think shows the lean a lil more, but i was looking at the pic a little closer and it looks like the uneven ground is playin tricks on my mind cuz to me its hard to tell the ground is not level..anyways here is the pic..

 

[chevysmithz71]

I would try a level surface. I had the same problem and When I moved it was better, but not solved. Stick a small magnet level on the axles and see what it looks like. Measure the spring eye bolts up to the frame especially the rear. When I put my rear shackle flips on there was a 3/4 in difference and Bingo.

 

[k5 krawler 50]

so how did u solve the your issue? did u just leave it unlevel? I appreciate the help.

 

[obijuan]

measure your frame to the ground on both sides in a few spots and see how that is. that will tell you if its suspension, then work each spring ect. or measure your body at the wheelwells or something to find the gangsta lean.

 

[Copasetic]

Subscribed. I'm having the same problem.

 

[k5 krawler 50]

cool thanks for all the tips, i will be sure to try them all when i get back home, where my truck is at.. i was looking at the new pic posted and i think the unlevel ground is playin tricks on my mind, so when i get it moving under its own power, i will move it to level ground and measure everything out..

 

[chevysmithz71]

so how did u solve the your issue? did u just leave it unlevel? I appreciate the help.

Mine was the rear shackle flip. Was 3/4 inch difference so I welded the hole and moved it down to match the other side.

 

[Hogback Fabrication]

If you are not measuring it on flat ground and you are just eyeballing it you are probably overreacting over nothing. Put it on flat ground and actually measure it.



(Not intended towards the original poster)

Your springs can and will wear/sag/bend unevenly. The rotation of the pinion on most axles (2.5 ton GM axles are reverse rotation, axles that rotate the other way are pretty rare) causes the rear passenger spring to take a greater load (from the drivetrain) than the driver spring. This generally causes the rear passenger spring to sag/bend earlier than the driver one.

 

[k5 krawler 50]

thanks for the info, i plan on measuring everything out when i get back home, and when its on flat ground... about your info stating that the rear pass. spring will sag before others, is there a way to prevent this? Would an anti wrap bar help at all, or is it just one of those things that are bound to happen? I appologize if these questions seem like noob ???'s but if there is a way to avoid this that would be awesome..

 

[Hogback Fabrication]

(k5 krawler 50): You have new springs, so if your truck is actually leaning to one side its from something else, but...

Axles have two torques acting on them because the differential changes the rotational torque 90 degrees.

Basically, torque is transmitted through the ring gear/axle shafts/etc. This creates an opposing torque which is resisted by the leaves (causing axle wrap).

At the same time, the pinion gear is transmitting torque to the ring gear and everything downhill of that. The pinion also creates an opposite torque which causes the passenger side of the suspension to squat (because the yokes rotate clockwise when you look at the front of the diff).

There aren't many reasonable options to counteract the torque of the pinion but there is a good side to this: its 3-4 times smaller than the axle wrap torque (the torque that the pinion creates is smaller than axle wrap torque by a factor of the axle's gear ratio).

I really wasn't helping your problem any, just pointing out that is one thing that can wear out springs on one side quicker than the other. My rear passenger spring is significantly more bent than my driver side, largely due to this IMO.

As for axle wrap (the much more relevant resistant torque), antiwrap bars are designed exactly for this. If you add an antiwrap bar make sure to weld the axle tubes to the pumpkin (search for the correct way to weld this up).

I hope most of that makes sense

 

[k5 krawler 50]

ok, i understand what u are saying.. i appreciate the explanation

 

[Chevy305]

check all of your body mounts. I have the same problem. But its only the rear diverside of the cab. I figure the body has settled and maybe one of the POs was morbidly obese?

 

[obijuan]

mine squats at the rear pass side. i still have stock springs with my flip kit.

 

[vortec]

x2 on body mounts. if one side rusts out faster than the other, it can lean a lot.

if you measure from the wheelwells to the top of the tires, the slope of the ground doesn't affect the measurement as much.

 

[dick_landy]

i have the same problem with my 2wd