The 2” rough country, the dealer wanted to install a different level that goes under the strut but they wouldn’t warranty it either. I called rough country and they weren’t any help, I even contacted them before I bought the kit asking if it would hurt the geometry and they said no. All the levels are the same, they just go in different spots. Unless you fix it with the new UCA’s that correct the binding.
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For all you guys in here with levels without new UCA’s. I’d be careful, 10,000km later (6000miles) the front end took a beating. The ball joint completely separated, dropped the UCA on my tire and wrecked the CV axle. The left side needed a ball joint replacement as well. $2500 later it’s fixed and back at factory height. Looks like a car again (Use to have 34” Toyo MT’s with the level). Time for some 275 or 285/65 Ridge grapplers and I’m calling it a day unfortunately.
I'm looking at the Ready lift 1.75" level with the new UCA's along with the SST level with the 3" blocks. I should have done this at the start vs my 2" RC level costing me $2500 in repairs... Anyways I heard you can just clear the new UCA's if you keep the factory wheels and tires but you can't go any wider without spacers. I love the factory 20's so I want to keep them, if I get the level again I'd run 285/65R20's. Would a 0.5" spacer clear the new UCA's? I know they stick out a bit more than the factory UCA's but I haven't been able to find any pics, thanks for the help!
I don’t think they torqued the bolts properly when they had it all apart. I called rough country about it and they said there’s no way it should have came apart like it did. Especially considering all of the trucks miles are highway. I’m not sure what all’s different between the AT4 and non AT4 models but I know they got the extra 2” from longer struts. The angles all looked fine with the 2” level.
2” rough county, I called them about the failure. They said there’s no way their kit could have caused that, especially because my truck only sees highway driving. They blamed the shop that installed it. GM got back to me this morning with a bill of $1800 to get it all fixed. They said it was caused from the added stress but the mechanic said to use leveling kits that put spacers below the struts. He said you’ll be perfectly fine with that.
It’s at the dealer, waiting to see what all needs to be replaced. I see that motofab offers a 1” level that doesn’t require the strut to be pulled apart for the spacer. I hate the factory rake. Plus I had 35x11.5’s on order which I had to cancel.
Well I thought it wouldn’t happen to me, but my ball joint failed, collapsed the UCA and pulled my CV shaft out while on the highway. I highly recommend upgrading to new UCA’s with any levelling kit. I only had 12,000km’s with it installed. I would have bought them but the new UCA’s stick out further in which you can’t run the stock wheels without spacers if you get bigger tires. I have no interest in running spacers. Some food for thought...
Yep it didn't make any sense to me, I know they'd both do much better at sea level. In the cab I could hardly notice a difference in power, he previously had a 8 speed 6.2 and he said the new one is a dog compared to his last one. I hear the 8 speeds were quicker in the 1/4 mile. I've yet to find any videos of the new 6.2 in the 13.9 range stock.
He was on 32" street 6 ply tires and I was on 33.3" 10 ply's so I think the wheel and tire weights were very close, plus I think the AT4's weigh a little more than the denali's? Mine was 2" taller than his If that counts for anything plus I had a 170lb passenger. I raced my previous truck down the 1/4 with 33's and 35's and there was 3/10th's difference.
Those are really impressive times! His was around 7 seconds, I know the density altitude up here is brutal but my 5.3 does it in 7.2 seconds. It doesn’t make much sense to me, he should have destroyed me. We tried launching it like you said and by brake torquing it. There’s a lot of torque management on these GM’s it seems like.
I've always been curious and I couldn't find any videos with a new gen 5.3 up against a 6.2. I was a bit surprised to be honest, here's the results.... the density altitude was around 5000ft above sea level, the trucks would probably lose 0.5 sec in the 1/4 at sea level. 19 5.3 with the 8 speed, 3.23 gears, 2" level on 22x10's, muffler/res delete 19 6.2 with the 10 speed, 3.23 gears, 2" level on 24x10's, Borla ATAK exhaust with a roto fab intake Draggy GPS performance tester, for anyone that doesn't know they're accurate to within 0.1 sec in the 1/4 mile (Proven) It shows you all the acceleration times, density altitude, slope (-/+1% range, the run becomes invalid if you're out of the range ect. 5.3, [email protected] 6.2, [email protected] 0-100mph runs the 6.2 was ahead by around 4 truck lengths, after 60mph or so the 5.3 can almost hang with the 6.2. The 6.2 gets the jump because the first few gears are pretty short. We did multiple runs with different launch techniques, they both had 2.2-2.3 60' times. I thought the 6.2 was going to absolutely destroy the 5.3's. I'd bet if the 5.3 was tuned it would be side by side with the 6.2.
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