Jump to content

Recommended Posts

Posted

Hey guys what's the likelihood for the rear axle to shift when installing new lift blocks? And if it happens, how do I fix it? 4 wheel alignment? Unless I'm seeing things it appears my passenger rear is shifted forward about 1.5" compared to the driver side rear after I put in new 2" blocks. At least that's what the tape measure is showing me. Thanks.

 

There are holes in the block and dowels where they sit.. If the installer didn't line them up correctly it's possible. They only go on one way. You would have to loosen the u bolts and position the block in correctly

This. To the OP, can you tell if the blocks and u-bolts look the same on both sides? The blocks are probably tapered a little to adjust the pinion angle. The shorter end should be pointing towards the front of the truck. You should have the same amount of u-bolt coverage on both sides. And, the blocks have a centering pin that will make sure they're sitting on the exact same place on the axle. If any of these things are off, then your axle may have shifted.

  • Like 1
Posted (edited)

 

This. To the OP, can you tell if the blocks and u-bolts look the same on both sides? The blocks are probably tapered a little to adjust the pinion angle. The shorter end should be pointing towards the front of the truck. You should have the same amount of u-bolt coverage on both sides. And, the blocks have a centering pin that will make sure they're sitting on the exact same place on the axle. If any of these things are off, then your axle may have shifted.

 

Thank you for the reply.

 

We did make sure the taper angle was larger to the rear and all the pins line up. The one thing we didn't do when installing the blocks was to disconnect the lower shock bolts. Not sure if that really matters or not. But unless the actual truck bed is off square with the frame, the passenger rear tire sits more fwd than the driver rear tire almost 1.5". Thrust angle seems off a bit. Anyone know if this is corrected with 4 wheel alignments? Seems to ride very nice still.

 

BTW new BFG's going on today! Finally!

Edited by cato
Posted

 

Thank you for the reply.

 

We did make sure the taper angle was larger to the rear and all the pins line up. The one thing we didn't do when installing the blocks was to disconnect the lower shock bolts. Not sure if that really matters or not. But unless the actual truck bed is off square with the frame, the passenger rear tire sits more fwd than the driver rear tire almost 1.5". Thrust angle seems off a bit. Anyone know if this is corrected with 4 wheel alignments? Seems to ride very nice still.

 

BTW new BFG's going on today! Finally!

Well, if it none of those things...then I'm out of ideas. May have to take it to an alignment shop. I wouldn't think the bed would be off that much. Have you measured from the center of the front wheel to the center of the back wheel on both sides?

Posted

Well, if it none of those things...then I'm out of ideas. May have to take it to an alignment shop. I wouldn't think the bed would be off that much. Have you measured from the center of the front wheel to the center of the back wheel on both sides?

Haven't measured yet. I will tomorrow. Alignment report shows the thrust angle is off some. I'll post it tomorrow with some pics of new set up. Thanks guys.

Posted

Ok so here's before n after pics.

 

Before: Stock height front = 36.5", Rear = 38.25"

 

IMG_3528_zpsga9mjqum.jpg

 

After: 2" RC level front = 38.75", 2" Ready Lift blocks rear = 40.75"

& BFG AT KO2's (275/70x18). Truck now sits approx 3.5" higher. I like it.

 

IMG_3850_zpsashrugyi.jpg

IMG_3852_zpsj6xxtwb8.jpg

 

As I mentioned before, this is my winter setup. Next spring will come 5" RCX lift and new 20" wheels n tires.

  • Like 2
Posted (edited)

Keep us posted! Good luck!

 

Ok so I measured front center hub to rear center hub. Here's what I got.

 

Passenger side = 143"

Driver side = 144"

 

Definitely a difference. And here's a copy of my 4 wheel alignment report.

 

IMG_3849_zps9j5wcxjs.jpg

 

So now what? Seems off by a degree?

Edited by cato
Posted

im thinking about putting on toyo mt's 275/65/r20 with a 2inch rough country leveling kit. Went to my local dealer and they said it would fit with no scrubbing. id like to know what you guys think and your opinions on this. i want the biggest tire i can run, with no scrubbing or needing to cut anything out. im just curious because some say they will and some say they dont. if this size is to big then what size do yall recommend. like i said biggest tire with no scrubbing.

  • Like This
  • Quote
  • MultiQuote
  • Edit
Posted

Got the level lift finished

Did they srub or rub anything at all im thinking about running the same size tires on my truck. Ive got a 2inch level on mine and was told these size tires wouldnt scrub. Have you had any issues?

Posted

Did they srub or rub anything at all im thinking about running the same size tires on my truck. Ive got a 2inch level on mine and was told these size tires wouldnt scrub. Have you had any issues?

 

Hey bud! I had a little bit of rub at full lock, so I had to zip tie the felt back in the wheel well and now I have zero issues with rub. You will not be disappointed!

Posted

 

Ok so I measured front center hub to rear center hub. Here's what I got.

 

Passenger side = 143"

Driver side = 144"

 

Definitely a difference. And here's a copy of my 4 wheel alignment report.

 

 

So now what? Seems off by a degree?

I'm stumped dude. :dunno: Did the alignment shop offer any advice? At least your truck looks really good, lol

  • Like 1
Posted

For those of you with the RC 2.5" leveling kit, did you have any issues getting the camber back to where it is supposed to be? My shop guy is worried about getting the camber back to 0 (or whatever it is supposed to be) after the 2.5" Rough Country. I'm not sure if 0 is the right number, and I'm not really familiar with where everything is supposed to be. He's suggesting the Fabtech 2" and prefers Fabtech since he believes it is a better product. I really like the look of the 2.5", but am wondering if I should take his advice, even though lots of people in this thread don't seem to have any problems with there 2.5" kit.

Posted

Supreme Suspension 3" leveling kit

Mayhem Patriots wheels wrapped in 305/55r20

 

They barely rub on the fender liner when in reverse - but not even enough to warrant the "zip tie trick" just yet.

 

Front fender measurement 40.25"

 

No rear measurement, but I'll get it after adding 2" block

 

 

post-148697-0-54730800-1443484490_thumb.jpg

 

 

post-148697-0-54730800-1443484490_thumb.jpg

post-148697-0-54730800-1443484490_thumb.jpg

post-148697-0-54730800-1443484490_thumb.jpg

Posted

Here's what I'm thinking. I think I'll be happy with that, no more mods after. Going to Aim for 3/4" lift in the back and 1.25" up front.

 

Maybe a tune next year.

 

EFC_8367-2_zpsheye2wls.jpg

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Latest Articles

  • Posts

    • You have to have the last word. 
    • I am sure that was quite the pass experience and not a great place to experience during the winter when the conditions are not good. I've seen video of that pass and also more detailed information and pictures about the wrecks at that one hair pin turn where tractor trailers have flown right off the cliff and I am sure from all the warning signs that you know the exact curve that was !. After all there is a reason why a song was made about Wolf Creek Pass !. By the way and I didn't realize this either when I bought my truck as its nothing I even thought of that would be programmed into the cruise control and this occurs in either the basic or the more advanced cruise that controls your distance behind a vehicle and that is the brakes going down a hill are being applied as soon as the vehicle goes a certain speed over the set cruise speed. While it certainly does force downshifts in the transmission as you found out with cruise on while going down hill, its also dragging the brakes as needed to keep the speed controlled to what the cruise was set to. For me, I find that unsettling simply because I have no concept then as to how MUCH brake input is being used a and just how hot are those brakes getting and the wear factor as well. I can see that system getting a person into trouble on long mountain grades while pulling a trailer as it would not only be standing on the brakes of the pickup without any driver input, it would also be automatically applying the trailer brakes and it could cause a run away unit by overheating the brakes. Its one thing on a shorter hill and if the driver allows it to do its thing but on a long mountain grade is where things could get so out of hand. As someone a while back on this forum said, they had someone following them at night I believe on a down grade and had the cruise set and the person behind them could see the brake lights being energized all the way down the hill. I figured when I saw your comment that you didn't know and would have no way of knowing that your truck was applying the brakes and that you would and rightfully so assume you only used the brakes when you pressed on the pedal to slow down more than the cruise set speed for the slower sharp curves. So its good knowledge to know this about the newer GM trucks, certainly when doing any descending on long mountain grades. In the future try kicking off the cruise and use the the manual mode on a pass to see what that is like as I know myself when I first experienced it I thought no way can this engine be holding me back this well and tried the same hill in manual mode and sure enough the engine was revving way up and still could not hold the trucks speed down like it could in cruise mode.    Fuel mileage, that is where a really low sleek type of car can do better at higher speeds, certainly it starts sucking fuel too but a tall pickup is pushing massive amounts of air and also allowing a lot more air under it and the tow mirrors as in elephant ears pushing through the wind  as well. Driving like grandpa is about as good as one can do when driving one of these if trying to get the best fuel economy they can. I bet these trucks would get the best mileage they can if driven on a freeway in Florida if not busy traffic at a sedate speed and that sea level elevation without hills, vastly different then Colorado !. 
    • It’s over for almost 24 hours. Are you playing Eddie Haskell? 
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...