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Should I try to install new gears myself?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by txbartman, Jul 16, 2001.

  1. txbartman

    txbartman 1/2 ton status

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    Since going to my 35s, I need to install 4.56 gears to get something out of my 305. I have GM 10-bolt front and rear axles. I have asked several friends that are weekend mechanics, and none of them have ever done a gear change. I am good mechanically, but don't want to screw things up. 4WPW, the only real 4x4 shop around, wants $300 per axle labor. Is this something I should try myself or leave to the professionals?

    brian

    85 GMC Jimmy, 305 w/TH700-NP208, 4" lift, 35X12.5 BFG MTs, 15x10 Hellcats, Smittybuilt tube nerf bars and bumbers
     
  2. ChadH82

    ChadH82 1/2 ton status

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    Here's a link to a write up about a gear change in a 14 bolt. It tells you everything you need. I have a 4.56 rear ring and pinion set for a 10 bolt if your interested. New in the box made by Precision Gear.

    Chad
     
  3. txbartman

    txbartman 1/2 ton status

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    How much for the 4.56? And, the link didn't appear.

    85 GMC Jimmy <a target="_blank" href=http://tx85gmcguy.alloffroad.com>tx85gmcguy.alloffroad.com</a>
     
  4. CaptCrunch

    CaptCrunch 1/2 ton status

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    $300 in labor really isn't too much. Better then many prices around here. You can do your own gears at home, but you'll probably be wasting the whole weekend on it. It tends to be a lot or disassemble and reassemble... measure. You'll need a dial indicator to get the job done if you don't have one. Usually gears is a bit more then a weekend/shadetree mechanic can handle. Myself if it is in a daily driver I'd just pay for the labor on the rear so it is set to go and you can take your time doing the front... get tired of working close up the frt diff and leave it in 2wd.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://www.geocities.com/milnerlives_2000/blazer.htm>http://www.geocities.com/milnerlives_2000/blazer.htm</a>
     
  5. laketex

    laketex 3/4 ton status

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    I know a guy that'll do it for about $150 an axle here, and he'll even let you watch and help. That's what I did and I have a much better understanding of how to do it, all the little tricks, and how my axles are composed so if i need to make a trail repair, i know what to look for. If you want I can float you his number, but it'll be about an 80 mile drive for ya.

    Btw, what did you decide to do about that rack?

    Sherman, Tx
    <font color=red>Come Awn yall...Let's go to LUCHENBACH, TEXAS!!!
    </font color=red>
     
  6. 88streetblaze

    88streetblaze 1/2 ton status

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    when you do it or have it done make sure that the right equipment is used. you need to have dial gauges to read run out and back lash. if that isn't done the gears may not last....
     
  7. ChadH82

    ChadH82 1/2 ton status

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    Sorry... here's the link <a target="_blank" href=http://www.coloradok5.com/gearinstall.shtml>http://www.coloradok5.com/gearinstall.shtml</a>


    Chad
     
  8. ChadH82

    ChadH82 1/2 ton status

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    $100

    Chad
     
  9. Emmettology 101

    Emmettology 101 3/4 ton status

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    Richmond sells a video that tells ya how to install gear in most rearends and that includes all the ones we use. Summit sells them for about $18.

    Watch out for some rearend shops that are crooks! I had a local place do mine. My dad knew the owner and i knew the parts counter guy. They handled me something firece! The guy I knew said Richmonds are hard to set up and that it takes longer with them. they said it took them 6 hours to do my rearend. I talked to a Richmond Rep at Canfield last year and he told me that any competent mechanic that knows how to set-up gears should only take about 20 mins to do a rearend with Richmonds!

    Be cautious when picking a shop! And if you do it yourself, take your time and triple check everything!

    <font color=green>MIKE</font color=green> - "Hukd on fawnics,werkd fer me!"
    <a target="_blank" href=http://www.geocities.com/emmettology101>http://www.geocities.com/emmettology101</a>
     
  10. ftn96

    ftn96 1/2 ton status

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    6 hours my ass. Gears are gears. if they are for the same application they are no different for the setup. Now 20 minutes sounds a little on the BS side too. But hey, some people my be that good. but when your working under the truck on the ground its gonna take alot longer than 20 minutes.

    Beer!!!! Its not just for breakfast anymore!!.[​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  11. Emmettology 101

    Emmettology 101 3/4 ton status

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    I think the 20 mins was for a rearend sitting on a stand out of the vehicle.

    My bro did his own in the fornt and rear of his K5... So far so good. We have the Richmond video and he has a dial caliper(he is a certified machinist, but we didn't have a pinion depth checker so he was careful and toook measurments and wear pattern many times and it came out great! Not sure how long it took him...

    Yes, 6 hours was WAY too long. I'll never go back there!

    <font color=green>MIKE</font color=green> - "Hukd on fawnics,werkd fer me!"
    <a target="_blank" href=http://www.geocities.com/emmettology101>http://www.geocities.com/emmettology101</a>
     
  12. txbartman

    txbartman 1/2 ton status

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    For $150 an axle and hands on learning and knowledge, I definitely want his name. Hell, this is Texas. 80 miles is next door! I really don't want to pay $300 an axle for some shop to do it where I just drop it off and pick it up later. But, I don't have the tools or experience to do it myself. If your friend is available, that's the best of both worlds. I plan to do this sometime in mid-August, so float me his info, if he doesn't mind. May even throw in a 12-pack!

    As far as the rack goes, I need to get the floor in it. You said you couldn't get any of the expanded metal but could help me weld it if I got it, right? If that's right, have any ideas where I could buy it? I really want to get this rack done so I can move on to other things on this truck of mine. PM me.

    Brian

    85 GMC Jimmy <a target="_blank" href=http://tx85gmcguy.alloffroad.com>tx85gmcguy.alloffroad.com</a>
     
  13. 90K5

    90K5 1/2 ton status

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    it sounds like you found a place, but i would recommend that no one goes to 4WPW to get it done.....Competition Machine of Plano can do it, its at Plano Pkwy and Avenue K....that place is pretty awesome anyway.....lots of cool muscle cars there.

    90K5

    See my truck at <a target="_blank" href=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</a>
     
  14. CaptCrunch

    CaptCrunch 1/2 ton status

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    20 minutes is about right for a rearend guy. A former guy I used to work with setup rearends in the race shop I was at and all he did was rearends. He could pretty much do it in his sleep. He could do a total rebuild complete w/ bearings, seals, r&P, brakes, etc. in under an hour. Most gear swaps he could do in 15 or 20 minutes and he was pulling in roughly 1.5 to 2 hrs book time for it.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://www.geocities.com/milnerlives_2000/blazer.htm>http://www.geocities.com/milnerlives_2000/blazer.htm</a>
     
  15. riz

    riz 3/4 ton status

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    <font color=purple> I need the same exact swap for my 10 bolts........ Mikey, How much can you get em done for ?

    L8r,
    . Riz . <a target="_blank" href=http://www.geocities.com/rizmonkey>www.geocities.com/rizmonkey</a>
     

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