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Thinking of Re-Gearing...What is good for me?

Discussion in 'The Garage' started by m1ndless, Mar 20, 2007.

  1. m1ndless

    m1ndless Banned

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    I am getting some 35x12.50 super swampers, and I dont think that my gears now (which I am unsure of, maybe 3.09 or 2.73) will handle them.

    Would 4.11 be good for me? I do some towing and romping, no rock crawling or anything like that.

    I am really unsure of what gears to go with..what would you guys reccomend?

    And can you guys help me with exactly what I need to purchase to do this? Do I just need to buy new ring and pinon sets or so I need more stuff than that (besides the gaskets and fluid).

    Should I do it myself and learn, or have someone else do it for me? How many hours of labor should it take, so I could get an idea of pricing, my mechanic is about $50 an hour.
     
  2. AFUFO

    AFUFO 1/2 ton status

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    4.10 be fine you has a th350 right? If you had a 700r4 4.56 prolly be a good option.
     
  3. m1ndless

    m1ndless Banned

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    I have no idea what I have, I just bought the truck.
     
  4. buefchris

    buefchris 1/2 ton status GMOTM Winner

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    Yea, he's right, 4.10's work nice with 35's for a all-around gear.
     
  5. slyguy_22

    slyguy_22 1/2 ton status GMOTM Winner

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    you should have a TH350 in that year. doubt its a TH400. it is a 3spd automatic correct? 4.11's should be fine
     
  6. 1BadK-30

    1BadK-30 1/2 ton status

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    A 700r4 would have overdrive. Here is some pictures of the shape of the pan, just crawl under and have a look.

    Th350
    [​IMG]

    700r4

    [​IMG]
     
  7. cbbr

    cbbr 1 ton status GMOTM Winner

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    My 4.10's were perfect with 35's.
     
  8. AFUFO

    AFUFO 1/2 ton status

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    This should help..

    Click for fullsize picture... this is a TH350 oil pan

    [​IMG]

    Damnit you guys i was gonna pull all 3 pan pics but took me a while to transload em to imageshack.
     
  9. AJMBLAZER

    AJMBLAZER Better to be lucky than good. Premium Member

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    I'm going to say the tired line, but it's always true:

    "If you have to ask, you should pay someone to do it."

    Setting gears requires a lot of skill and patience to do it right. I've put lift kits on, do most of my own work, taken engines somewhat apart and had them run when I got them back together, even done body work...poorly...and I wouldn't THINK of trying to set my own ring and pinion without more knowledge and hopefully the help of someone who knew what they were doing.

    Thought about putting a locker in as well? It would be a good time while the diff was apart.

    4.11's sound good provided you have a non-OD tranny.

    Look around your area or on here, someone locally might have a whole set of axle with deeper gears for sale. It's amazing what turns up when guys go to 3/4 ton or 1 ton axles.
     
  10. m1ndless

    m1ndless Banned

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    Yeah, 3 spd automatic, so the TH350.

    So 4.10 would be good for 35's? What if I need to put my 31's back on, is that too much power for this tiny wheels? Would they spin easily?

    So all I need to do is replace the ring and pinon right? My mechanic said he would do it for 50 an hour, and it should only take 4-5 hours per axel, does that sound right?

    I need 12 bolt gears for the rear, and I have 10 bolt in the front? Right?

    I was looking at gears, and they said they fit camaros, does that matter? Are they made for certain vehicles or axels? I am confused..

    And stupid question, but I need matching gears for front and back right?
     
  11. AFUFO

    AFUFO 1/2 ton status

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    This is what a th400 looks like...reminds me of Texas.

    [​IMG]
     
  12. AFUFO

    AFUFO 1/2 ton status

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    just have it done professionally as already stated. or do an axle swap that already has the gears your lookin for.

    See if your mechanic will allow you to watch(and maybe help) with the process.

    Also, goto lmctruck.com and pull up your trucks catalog..goto the axle and trasmission identification pages. Were not going to do everything for you..go out to your TRUCK and take a LOOK after you goto the identification page.
     
  13. m1ndless

    m1ndless Banned

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    That is what I have been doing, I watched him do my lift kit and learned alot, same when he wired up my gauges and such. He is really cool, he does alot of the work out of his house, he has a 2 acre lot and a big work shed in the back wit a car lift and everything.
     
  14. buefchris

    buefchris 1/2 ton status GMOTM Winner

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    $$$$$$$$$$$ This is where opening that can of worms can get pricey $$$$$$
     
  15. m1ndless

    m1ndless Banned

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    It doesnt seem that expensive, 100ish for each set of gears, 150-250 for install for each axel, maybe 600-700 total? Not bad?
     
  16. AJMBLAZER

    AJMBLAZER Better to be lucky than good. Premium Member

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    I'd expect a grand. More if you want to add a locker...hint hint hint...do it now as if you want to do it later they have to take the whole thing apart again...
     
  17. buefchris

    buefchris 1/2 ton status GMOTM Winner

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    Read his words and think about it:thinking:
     
  18. blazinzuk

    blazinzuk Buzzbox voodoo Premium Member GMOTM Winner

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    More like 150 for each gear set 100 for a master rebuild kit (x2) and then your guys labor. More like a grand. I bet you could find some 3/4 tons axles with 4.10s already in them and get steel wheels for less than a grand

    Also 5 hours isn't unreasonable for a gear setup but if he runs into any problems you could easily add another 5 hours on top of the 10 hours.

    How them 3/4 tons looking now?
     
  19. AJMBLAZER

    AJMBLAZER Better to be lucky than good. Premium Member

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    What he said.
     
  20. onlychevy6

    onlychevy6 1/2 ton status

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    i run 4.10's with my 37" tall tires seems to be fine. a little sluggish but not bad. i also have a 3/4 ton axles setup. 14 bolt FF rear and dana 44 front.

    my combination is a 350 with a th350 and np205 transfercase.
     

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