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Torsion Bar Weak?

tobyhd1

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tobyhd1 Enthusiast

tobyhd1

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Hi!,new here but not to gm products.I could not find an answer in a search so here goes.`01 suburban 2500 w/8.1. Front of truck was lower on DS. than pass. Turned up the torsion bar on DS and got the truck back to level R/L.I have almost no adjustment left on drivers side and have 3/4 of an in. showing on pass.side.Can (and do) torsion bars loose their spring after time?Should I replace?Do they make a heavier bar?I don`t know if the lager motor comes in to play in this scenario.Thanks,Toby

Jacqson Enthusiast

Jacqson

Posted
Posted
Hi!,new here but not to gm products.I could not find an answer in a search so here goes.`01 suburban 2500 w/8.1. Front of truck was lower on DS. than pass. Turned up the torsion bar on DS and got the truck back to level R/L.I have almost no adjustment left on drivers side and have 3/4 of an in. showing on pass.side.Can (and do) torsion bars loose their spring after time?Should I replace?Do they make a heavier bar?I don`t know if the lager motor comes in to play in this scenario.Thanks,Toby

 

 

Yes, Torsion bars start to sag over time. You can replace them with a heavier bar or you can get a set of green keys which have a higher index than your stock purple keys and that will give you more lift, even with your sagged bars. Suburban 2500's come with GK bars which have a torque capacity of 8615 ft.lbs. You could go with a GL bar which is standard on the 2500HD and 3500SRW. They have a torque capacity of 8782 ft. lbs. Changing the keys is a cheaper way to go but I think if you're in it for the long haul I would change out your bars, either to another set of GK's or go with the GL's. Read this article (www.offroad-tech.com/tech/tb401/) This will answer a lot of your questions.

2000DV4.8 Senior Enthusiast

2000DV4.8

Posted
Posted

It is completely normal for the adjustments on each side to be a little bit off from each other, but 3/4" showing on the bolt sounds like a little much. If you can afford it, I'd suggest replacing the bars, as it'll be a more reliable option. If you just get different keys, you'll have to keep cranking them every time the already worn t-bar sags a little bit.

tobyhd1 Enthusiast

tobyhd1

Posted
  • Author
Posted
It is completely normal for the adjustments on each side to be a little bit off from each other, but 3/4" showing on the bolt sounds like a little much. If you can afford it, I'd suggest replacing the bars, as it'll be a more reliable option. If you just get different keys, you'll have to keep cranking them every time the already worn t-bar sags a little bit.

Thank you for the replies gentlemen.I just went through the web page recommended by Jacqson and wrote done some part #`s and will check prices at the gmpartsdirect site for the GL bars and some new retainers.I`ll use my stock keys for now for I am contemplating a ready lift leveling kit with the shock mts.(auto-ride) which include keys, in the future to put on some 265`s or 285`s in the summer.Thanks again for the info.Toby

Jacqson Enthusiast

Jacqson

Posted
Posted
It is completely normal for the adjustments on each side to be a little bit off from each other, but 3/4" showing on the bolt sounds like a little much. If you can afford it, I'd suggest replacing the bars, as it'll be a more reliable option. If you just get different keys, you'll have to keep cranking them every time the already worn t-bar sags a little bit.

Thank you for the replies gentlemen.I just went through the web page recommended by Jacqson and wrote done some part #`s and will check prices at the gmpartsdirect site for the GL bars and some new retainers.I`ll use my stock keys for now for I am contemplating a ready lift leveling kit with the shock mts.(auto-ride) which include keys, in the future to put on some 265`s or 285`s in the summer.Thanks again for the info.Toby

 

 

Just as a side note. If you ever want to remove or have any questions about your autoride, let me know. I have successfuly removed it from my 02 Sub.

Guest Riggs

Guest Riggs

Posted
Posted

i would try to find or get a pair from a accident.

tobyhd1 Enthusiast

tobyhd1

Posted
  • Author
Posted

I checked with gmpartsdir. and they run $159 @ so I think I`ll just get a new pair.I`m going to keep this truck until it rots away and want to make it right.I also noticed that the rubber bump stops were cracked and funny looking and will change them out while I`m under there.If and when one one or more of the auto-ride shocks bite the big one,I`ll look you up Jacqson and I`ll have to address that issue then.Those factory shocks are quite pricey and how would you ever know if they were doing the auto-thing?I have to measure the torsion bars because I`m seeing same vehicles ones calling for 52" and 54".I`ll figure it out.Thanks again guy`s ,Toby

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