Adjusting torsion bar will do what?
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Senior User
Joined: Apr 2002
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Adjusting torsion bar will do what?
a friend said he did not like the front sag on his suburban and tightened the torsion bar, which lifted the front end so that it was level with the rear.
what does all this mean? what is he really doing to the suspension? does it cause the ride to become much more firm/rough? any negative consequences?
thx
what does all this mean? what is he really doing to the suspension? does it cause the ride to become much more firm/rough? any negative consequences?
thx
Senior User
Joined: Aug 2004
Posts: 304
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From: Connecticut
the torsion should be the same since the load did not change.
plus its the same bar, so the ride should also be the same. The fact that the ride height is different might contribute to some degree to the dynamics of the suspension, but over-all, ride should be the same.
At least, in my experience, that's the case. I substantially lowered mine and needed to remove about 1/2" of the bump stop to give the suspension room to play. No change in ride I could attribute to the torsion bar adjustment.
plus its the same bar, so the ride should also be the same. The fact that the ride height is different might contribute to some degree to the dynamics of the suspension, but over-all, ride should be the same.
At least, in my experience, that's the case. I substantially lowered mine and needed to remove about 1/2" of the bump stop to give the suspension room to play. No change in ride I could attribute to the torsion bar adjustment.
Logistics Pro
Joined: Oct 2000
Posts: 3,960
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From: All over Texas
The effects of torsion bar adjustment have been hotly debated for years around internet forums (different angles, stresses, etc). I raised my front end an inch or so four years ago to level my truck. Since that time I've replaced all four balljoints....just a coincidence? Who knows. Bottom line, the general consensus was not to overdo it. An inch or so either direction shouldn't hurt much in the long run.
Senior User
Joined: Aug 2004
Posts: 304
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From: Connecticut
I lowered mine, a bit on the extreme that I had to cut about 1/2 off the front bump stops. Slapped in 305/45R22 and I'm lovin' it (99 XP-XLT w/ LLS). No rubbing issue, and all other issues I had before (imagined or real) went away - no more vibration, no more 'light' steering feel. The ride is a lot firmer without being harsh (Belstein rears, and for lack of available after-market, new oem front specialty 'air' shocks). Planned Hellwig anti-sway bar became unnecessary.
How did your front drive shafts fare? Did it also wear faster than normal?
How did your front drive shafts fare? Did it also wear faster than normal?
