Converting rear suspension to coil spring

Discussion in 'OEM' started by smitty5150, Dec 2, 2014.

  1. smitty5150

    smitty5150 Well-Known Member

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    I really don't see this discussed a lot. I'm curious what springs people have used to keep close to stock stance while converting from air ride. Pretty sure the 9-7x sits lower than a stock tb. I don't want my ass in the air for all to see.
     
  2. Mounce

    Mounce Silver Supporter

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    I think the average person just swaps in some TB/Envoy springs. I also haven't seen this discussed much.

    Are the existing springs to soft/weak without the air bags?
     
  3. smitty5150

    smitty5150 Well-Known Member

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    The 97x has airbags only. However, where I've been parking throws off the settings. I'm considering dumping thd setup to just use springs. I've been reading and it looks like if I get lowering springs for an 07+ tahoe it should bring me to level or close.
     
    Capote likes this.
  4. Mounce

    Mounce Silver Supporter

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    So the bags aren't housed inside of the springs like on TB's and only has bags? I didn't know that..we don't have many 97x guys here so I haven't seen much about them.
     
  5. Aarkon

    Aarkon Silver Supporter

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    My envoy is the same way if I remember right
     
  6. smitty5150

    smitty5150 Well-Known Member

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    Tbss, envoy, bravada all the same way. People add helper bags inside of coils but I don't believe that's factory at all.
     
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  7. Mounce

    Mounce Silver Supporter

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    Well dang, I thought the ones with air ride from the factory came with them inside the springs. :duh: Lol, excuse my ignorance fellas.
     
  8. Mooseman

    Mooseman Moderator

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    Wish I knew what springs the previous owner used on mine but he also lifted it. Sits pretty level. One thing I found is that the shocks/struts are stiffer than on my TB EXT with newer Bilsteins.
     
  9. smitty5150

    smitty5150 Well-Known Member

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    My issue is the saab sits at about stock height for ss. I could throw tb rear coils in but I'd have to level the front which opens a whole new can of worms. Or I throw drop springs in the rear and risk needing to drop the front by way of new springs or trimming a half coil off the stockers.
     
  10. djthumper

    djthumper Administrator

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    We normally do Garth...
     
  11. smitty5150

    smitty5150 Well-Known Member

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    Dude I'm trying to keep that can closed as long as possible. Not working.
     
  12. djthumper

    djthumper Administrator

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    If you use stock springs you could always trim them to lower the rear down.
     
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  13. smitty5150

    smitty5150 Well-Known Member

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    That is a good thought. I wonder how that would affect the way they seat in the perches.
     
  14. Sparky

    Sparky Moderator

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    If you trim the correct end it won't matter. Don't trim the end that coils inward.

    I don't like the idea of trimming stock springs since you shorten the spring without really increasing the spring rate to compensate for less travel. I guess half a coil makes little difference.
     
  15. 24v 4.2

    24v 4.2 Silver Supporter

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    I have a set of stock springs from my 06 LT. Let me know if you are interested and we can work something out.
     
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  16. mrwitty_1

    mrwitty_1 Active Member

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    Give the Monroe 90017 conversion kit a look. Should be just what you asked for. :thumbsup:
     
  17. jrSS

    jrSS Well-Known Member

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    U could buy some Mcgaughys springs. They aren't too badly priced.
     
  18. smitty5150

    smitty5150 Well-Known Member

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    Btw. I bought the moog springs for the trailblazer, pn81049. They fit perfect and now the rear sits just over an inch higher than the front.
     
  19. jflood1274

    jflood1274 New Member

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    Arnott has air to coil conversion for 360 chassis.
     
  20. Bow_Tied

    Bow_Tied Well-Known Member

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    If you didn't like the lower springs becuase they were too low you could add a spring spacer. I beleive they are available in different sizes.
     
  21. mfnman88

    mfnman88 Active Member

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    How are those Moogs holding up. (ride quality, any sag over time, etc.) I just bought an 08' with a bad compressor and I need to get it on the road ASAP. I'm going to attempt an alternate compressor set up like Instrumental did on THIS thread but in the meantime I've been looking at short term options. If the ride height ends up being a little raked it wont matter as I tow a small trailer weekly. (5'x9' flatbed with lawnmower, plywood, Air compressor, etc.) If the coil spring setup works too well I might just loose motivation to redo the Air ride. Sorry Instrumental
     

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