Lowered lly ride quality

Yuptown_lly

New member
Oct 20, 2016
26
0
1
Central Virginia
I have a 2005 cc sb lly with 2" lowering shackles and the keys cranked to where the cvs sit flat. Truck is on 16"x10" mickey thompson classic 2s with 285/75/16 toyo a/t. Within the last year ive installed moog idler and pitman arm, moog tie rods, moog hub assemblies, just installed moog upper control arm and lower ball joints as well as blistein 5100 up front (the rancho rs5000 from last year were shot im sure the rear are to theyre junk). The ride is still stiff as hell, I also installed z71 style bump stops which im thinking about changing or removing maybe even. Id love some air bags for the rear and definetly plan to do blisteins in the rear soon. Ive been running 60psi front tires 55 rear and thinking about changing that to 50 all round? Whats yals input? Anybody else sitting at my height have a super stiff and bumpy ride?
 

WVRigrat05

Wound for sound
Jan 1, 2011
3,081
4
38
36
French Creek, West Virginia
Mine had 40 when I checked today, I'm running 32 again in the rear and 35 in the front, it def helped. Dropping the front end, and new shocks next days off hopefully.
 
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whitetrash21

put on da damn helmet day
Apr 29, 2008
4,929
0
36
Vegas
May or may not make a difference, but the 5100s have always stiffened up the ride on any Duramax I've owned. Much better handling when loaded but with no weight on them, the ride is definitely stiffer than with factory shocks.

Tires I keep at 55 front and rear since i'm loaded 90% of the time.
 

1TRIKHD

Country boy Limo.
Sep 15, 2015
1,692
388
83
P.N.W
Aren't the 5100's for stock ride height? If your lower then that up front the shocks could be part of the problem.
 

SoCalMike

Member
Dec 12, 2010
758
16
18
SoCal
Pictures of the front end setup would help. You could be sitting on the jounce bumper too much. Unloaded tire pressure should be around 50 psi front 40 psi rear. To really know what psi you can run, find the load inflation chart for you tires.

I have a 285/70/17 E tires and run 47 front 38 rear unloaded. With my tires I can go lower but things get squishy and mpg goes to crap.

Sent from my XT1635-01 using Tapatalk
 

SierraDuramax

New member
Oct 21, 2016
1
0
0
im thinking about lowering my duramax this week. I want to go 3 inch shackles in the rear and then just take the bolts out of the torsion bars, just nervous about the ride quality cause right now my truck drivers pretty good right now!!
 

1TRIKHD

Country boy Limo.
Sep 15, 2015
1,692
388
83
P.N.W
im thinking about lowering my duramax this week. I want to go 3 inch shackles in the rear and then just take the bolts out of the torsion bars, just nervous about the ride quality cause right now my truck drivers pretty good right now!!

I have 3" drop shackles and bolts out and mine rides pretty damn good for a CCLB
 

Yuptown_lly

New member
Oct 20, 2016
26
0
1
Central Virginia
My blistein 5100s are stock height shocks which should be about right because at factory setting my truck sat pretty low up front. My torsion bolts arent all the way out my cvs sit about flat, id like to go lower i just have to trim some more to clear the tires at a lower height. Im running about 50 psi front and 45 rear now it has helped the ride some but still very stiff, you hit a bump or pot hole brace yourself. Oh and railroad crossings can be a bit rough to.