seven9st surfer
Full Access Member
So I started looking into leveling my 03 Yukon, not lifting the rear at all. I took some measurements as it sits now (ground to top of wheel well), and they're all over the place.
Front driver - 35 1/8"
Front passenger - 36 1/8" (1" higher)
Rear driver - 36 7/8"
Rear passenger - 37 3/8" (1/2" higher)
I can't believe I never noticed how the front leans 1" to the driver side, but now that's all I can see. Looking at my torsion bar key adjustment bolts, I've got about 1/2" to 3/4" left on both sides. Also, looking at posts about the front bump stops/jouncers, it's normal to have them touch the control arm. But mine seems excessive, like the front is riding excessively low, especially the driver side.
Passenger side:

Driver side:

I checked the "z height" measurements, and it appears this is the case, as I'm around 1" below the 4.7" recommended height.

So I guess my questions are:
1- Should I be able to get everything leveled out with my stock keys, or should I buy new ones?
2- In either case, should I upgrade my shocks to compensate for the front ride height difference (Bilstein 5100, etc.)?
3- If I do need the upgraded shocks, do I need to get new rear shocks to match the front?
4- Would the 1" front height differences explain the 1/2" difference in the rear height, or do I have something else going on?
5- I probably will replace the stock jouncers, as the drivers side looks pretty worn out. I think the part number is 15153958. Can anyone confirm? I've also read something about Z71 jouncers as a better replacement. Anyone have any info on this?
Lots of question, I know. But I'm pretty new to suspension upgrades. Thanks for any help.
EDIT: After a lot more research, I don't think I'll be replacing my rear shocks as I have the Nivomat rears, and don't want to drop $600 on new Nivomats or a coil conversion.
Front driver - 35 1/8"
Front passenger - 36 1/8" (1" higher)
Rear driver - 36 7/8"
Rear passenger - 37 3/8" (1/2" higher)
I can't believe I never noticed how the front leans 1" to the driver side, but now that's all I can see. Looking at my torsion bar key adjustment bolts, I've got about 1/2" to 3/4" left on both sides. Also, looking at posts about the front bump stops/jouncers, it's normal to have them touch the control arm. But mine seems excessive, like the front is riding excessively low, especially the driver side.
Passenger side:

Driver side:

I checked the "z height" measurements, and it appears this is the case, as I'm around 1" below the 4.7" recommended height.

So I guess my questions are:
1- Should I be able to get everything leveled out with my stock keys, or should I buy new ones?
2- In either case, should I upgrade my shocks to compensate for the front ride height difference (Bilstein 5100, etc.)?
3- If I do need the upgraded shocks, do I need to get new rear shocks to match the front?
4- Would the 1" front height differences explain the 1/2" difference in the rear height, or do I have something else going on?
5- I probably will replace the stock jouncers, as the drivers side looks pretty worn out. I think the part number is 15153958. Can anyone confirm? I've also read something about Z71 jouncers as a better replacement. Anyone have any info on this?
Lots of question, I know. But I'm pretty new to suspension upgrades. Thanks for any help.
EDIT: After a lot more research, I don't think I'll be replacing my rear shocks as I have the Nivomat rears, and don't want to drop $600 on new Nivomats or a coil conversion.
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