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2000 chevy OBS front end suspension help........mount sits low before we lift it

Discussion in 'Chevy Trucks' started by ACA L&L, Jan 9, 2012.

  1. ACA L&L

    ACA L&L Senior Member
    Messages: 362

    2000 chevy OBS 3/4 ton, unimount sits about 3" from ground with plow raised, 5-6" without it on. we need to keep it from sagging, ordered timbrens, but want the truck to sit a little higher without the plow on........any suggestions.......want air bags, cant find anything but torsion keys and shock brackets......ive searched quite a bit but cant find much.

    plow truck chevy 003.jpg
     
  2. ACA L&L

    ACA L&L Senior Member
    Messages: 362

    sitting low.....chebby wants some air bags.air shocks.something

    plow truck 009.jpg
     
  3. maverjohn

    maverjohn Senior Member
    Messages: 902

    Have you tryer ballist weight in the back ?
     
  4. MikeRi24

    MikeRi24 Senior Member
    Messages: 563

    For some reason it looks like the plow is sticking out really far forward. When I had my '94 3500 with a unimount, the tower was no more than maybe an inch away from the front bumper. I'm really not a Western guy, aside from having the one Unimount, but even my '99 OBS 3/4 ton that I have now with a Boss doesnt sit that low, and Boss frames are known to hang pretty low compared to other plows I believe.

    You can crank the torsion bars, but on the OBS GMs they are a lot more sensitive that the NBS or NNBS in terms of how a t-bar adjustment will effect the camber.

    As I said, I'm not a Western guy, but I feel like the plow is sitting really far out in front of the truck and having all that weight hanging out that far in front of the front axle could be causing it to sag, or it could be because you don't have enough ballast in the back or a combination of both. But I have to wonder if somehow you have the wrong plow frame on there or don't have it on there right. I know with the Boss frames, theres some adjustments you can do to change the height of the crossbar and mount, but I don't really recall much to adjust on the unimounts like that.
     
  5. ACA L&L

    ACA L&L Senior Member
    Messages: 362

    So nowadays you have to install the Ultramount set up first then by a conversion bracket to install the Unimount. The mount sticks out far from under the truck, then yes the plow does also when mounted. I looked at it at the dealer and asked why this was, this was his answer. We r currently lookng for a ultramount plow to put on this chebby. Until then i want to raise the truck a bit to sit higher, even without the plow. How have others lifted ther trucks? I cant find much for the 2000 chebby year truck, it might just b me. I would love to put air bags under her, but timrens and t bar cranked or new t bar keys looks like my option. It sits low, it sticks out farther than it should, but it works, My main concern was further damage to front end, It was rebuilt today at the shop, the shocks were leaking, brackets broken, only thing that was ok was the pitman arms. I will continue searching. the site
     
    Last edited: Jan 9, 2012
  6. Mr.Markus

    Mr.Markus PlowSite Fanatic
    Messages: 5,173

  7. ACA L&L

    ACA L&L Senior Member
    Messages: 362

  8. ACA L&L

    ACA L&L Senior Member
    Messages: 362

    I would put air bags in a second, i just cant find a kit for the 2000 chevy OBS. I dont wanna spend 2500 on a susp. lift kit. my options are limited with this truck. I think im gonna do the above.........unless someone has a better idea to give me 4" within a decent price range. I dont think i could do a 4-6" suspension lift on my own at any rate, so the shop will prolly charge me another 1k on top of the parts .
     
  9. Mr.Markus

    Mr.Markus PlowSite Fanatic
    Messages: 5,173

    You can't put airbags on the IFS trucks hence the levelrite shocks.

    The airbag that is built into these shocks is much smaller and susceptable to temperature changes. If you do go this way get the onboard compressor as well. It would be a PITA if you had to stop and pump them up manually. The same ones fit your truck.
    http://www.truckspring.com/suspensi...make=Chevrolet&year=2000&model=Silverado+2500
     
  10. badazzbulldog

    badazzbulldog Junior Member
    Messages: 8

    i have a 97 3500 gmc, first off dont waste money on torsion bar keys,jack up front end and with an 18mm socket crank the bolt on each torsion key in not all the way but do the same amount on each one and let it down and check height difference with the plow on and tighten more till you have it where you like the way it sits,also gabriel hyjacker air shocks work well i dont offhand have the part number for the ones that fit in the front of the obs trucks but i'll see what i can come up with we have done those in the past to raise front some with plow on
     
  11. ACA L&L

    ACA L&L Senior Member
    Messages: 362

    Thank you guys for the info, I have succesfully raised the truck a full 2" before the plow is mounted, with the timbrens this should hold close to that/. The shop that rebuilt the front end yeasterday(pick up truck now) called and said they had to trim the frame to do the alignment correctly. Two full hours of shop time. im still gonna try and get some air shocks for it, i like the idea of being able to add height when needed to level it out, gonna put airbags in back on this one as well. For the two dodges, timbrens and HD springs should do the trick, they sit high already. Ive been searching the net/plowsite/ for almost 3 days, ive put eyeballs on every possible thing you can use for raising a truck/supporting it and i must say the options for the OBS 2000 chevy truck options are limited.........Thank you to everyone for the help, i will post a pic of truck tonight.
     
  12. ACA L&L

    ACA L&L Senior Member
    Messages: 362

    I saw these as was not sure if they would work on my year model, reading it again looks like it will work, do you think I should still install the timbrens, could find anything to say it would hold the weight well, or at all.
     
  13. Mr.Markus

    Mr.Markus PlowSite Fanatic
    Messages: 5,173

    I've tried both, in fact I just left the timbrens in when I installed the airshocks, They're not in the way of each other. The air shocks give you an adjustable cushion of air to give you a bit of height and much smoother ride(adjustable meaning you can inflate and deflate to preference). The timbrens once collapsed under weight have a hard ride to them just like your bump stops.
     
  14. ACA L&L

    ACA L&L Senior Member
    Messages: 362

    Good info......thos is best case scenario, adjust the height, timbrens will kick in when plow is mounted, adjust height when u want, kinda like a poor mans air bag..........Got truck back from shop today, rides lkike a new car....well not really but 9 times better than before, and we were able to raise it 2"+ he had more but dialed it back cuz the front was taller than the back, he also knew we would probably be adjusting as we see fit, the front end work they did was short of perfect, all the guys in the shop were woking on it and each of them seemed to like the truck, or had a story about a similiar truck......now all we need is another storm or two this year and we will be set.......pics on way of front end work with T bar cranked a bit.........:mechanic:
     
  15. ACA L&L

    ACA L&L Senior Member
    Messages: 362

    before 1st pic after 2 nd pic.

    plow truck 011.jpg

    chevy 2012 lift 005.jpg
     
  16. MikeRi24

    MikeRi24 Senior Member
    Messages: 563

    glad you got it resolved! that makes sense now about the ultra-mount to uni-mount conversion. I think I have heard about that somewhere before, seems kinda stupid if you ask me. Maybe its just their way of getting you to buy a new plow....

    Oh, and if you find somewhere to get actual air shocks for the front of the truck, let me know. I've been looking for them for my '00 OBS K2500 for a while now and haven't come up with anything yet.
     
  17. Mr.Markus

    Mr.Markus PlowSite Fanatic
    Messages: 5,173

  18. ACA L&L

    ACA L&L Senior Member
    Messages: 362

    Hey Mr Markus
    ,#1. thanks for the link earlierlike, #2 with the T bars cranked, a bit, do u run into any problems with the air shocks possibly being raised to high.....causing the truck to have issues. I am in now way a front end specialists nor have i ever claimed to be but i would assume at some point raising the front end without doing other mods to other parts of the front end will not be the brightest idea.......or do the shocks just stop raising at some point......we would only be maxxing them out with the plow on, but now that i got the front end raised a bit i think the timbrens would hold the load for the most part correct? I mean even if it sags an inch with the timbrens this would be ok for me, we have almost a foot of clearence now from the lowest part of the conversion kit........ill say without the timbrens it drops 4". maybe.....more/less........but with timbrens itshould hold true within an inch or three.....I can see the light at the end of the tunnel, one truck almost done 2 more dodges to go......
     
  19. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    The 1003 Level Rite's DO NOT fit GMT400 chassis, only the GMT900 (ie Silverado/Sierra NBS). So don't order them thinking you're going to bolt them on an OBS truck.
     
  20. ACA L&L

    ACA L&L Senior Member
    Messages: 362

    Thanks for the heads up B&B, by the way you gave me some great advice when I was buying My first snowplow ever........and I wanted to say Than You, we have had good luck, we just bought our 5th plow this year and havnt looked back......Oh yeah and this weekend we are installing the dual battery set up on the old chebby, Thanks in advance for that tutorial........