replacing spider gears in 1999 Chevy

Discussion in 'Chevy Truck Forum' started by ChevMan92, Mar 11, 2010.

  1. 1980blueandsilv

    1980blueandsilv Senior Member

    Joined:
    Mar 11, 2010
    Messages:
    85
    Likes Received:
    0
    i also have a 99 chevy, im not totally sure but every shop i ve been to about a rearend has said these trucks have huge loads of probs with the rear end starting with the spider gears, im on the 3 rd rearend since i ve owned it also, u need to check all of the gears in the rear end to be sure they didnt shred as well, when mine went out the first time the shop said the spider gears were gone and the other gears were pitted from hittin the spiders awkwardly, when that was all fixed i only had 1 and 2 gear cuz it tore the sprag in the trans out and massacred it as well so ur problem may not stop at the spider gears
     
  2. ChevMan92

    ChevMan92 Senior Member

    Joined:
    Jan 20, 2010
    Messages:
    155
    Likes Received:
    2
    well the rest of the gears are fine, ive looked at it. i only drove about 10 or 15 miles on it after it started banging because i had to get home and that is it and i looked and everything else is perfect. but anyone know some step by step instructions for this???????????
     
  3. gpmorgan

    gpmorgan Auto Banned

    Joined:
    Nov 21, 2009
    Messages:
    2,687
    Likes Received:
    287
    put jack stands under axle housing. remove tires and wheels. remove brake hubs. remove diff cover. remove bolt and pin. push axles inward all the way. remove c-clips from axle. pull axles out 6or so inches or all the way out if replacing seals. turn carrier to roll spider gears out. gears have concave washers on them. kit should have new ones. put diff oil on them and put them on new gears. reinstall by rolling them back in. need to start both gears at same time so they will line up to install pin back in. put axles back in all the way and install c- clips. pull axles out until c-clips seat. install pin and bolt. put cover on. fill with gear oil.
     
    crabtruck likes this.
  4. 436'd skylark

    436'd skylark Senior Member

    Joined:
    Mar 8, 2007
    Messages:
    1,143
    Likes Received:
    27
    The shavings have contaminated the rest of the rear end, You ought to do it right the first time.
     
  5. Mayhem

    Mayhem Full Member

    Joined:
    Feb 15, 2010
    Messages:
    25
    Likes Received:
    0
    Ill bet the axle bearing are freid too or at least pitted. While its apart you should at the very least clean and inspect all the bearings.
     
  6. gpmorgan

    gpmorgan Auto Banned

    Joined:
    Nov 21, 2009
    Messages:
    2,687
    Likes Received:
    287
    oh yea, jack truck up to put stands under axle housing. crabtruck said i left that part out.:rofl::help: thanks crab:bow:
     
  7. crabtruck

    crabtruck Senior Member

    Joined:
    Jul 9, 2007
    Messages:
    5,566
    Likes Received:
    140
    I won't tell you what I did
    that made me think
    it was important to included.
    :blush:
     
  8. gpmorgan

    gpmorgan Auto Banned

    Joined:
    Nov 21, 2009
    Messages:
    2,687
    Likes Received:
    287
    come on, i want to here. we probably have all done some not so smart goof ups, like putting engine and trans in and noticing torque converter is laying beside truck.:eek: kinda got a not so funny laugh out of that:rofl:
     
  9. ChevMan92

    ChevMan92 Senior Member

    Joined:
    Jan 20, 2010
    Messages:
    155
    Likes Received:
    2
    well got it all tore apart and replaced. there was a lot of metal. the housing for the spider gears is kinda messed up. i just did a really good job cleaning and put the new gears and new shims in and hope for the best. i will probably be looking for a new axle soon because the gears the pin slides through are a little sloppy so ill expect it to go back out around 100,000 (truck has 76,000) as long as i don't do any burnouts and only do some minor off roading. but its back on the road for now and hopefully i wont have no more problems.
     
  10. gpmorgan

    gpmorgan Auto Banned

    Joined:
    Nov 21, 2009
    Messages:
    2,687
    Likes Received:
    287
    well. good luck. it really wasn't that bad was it.
     

Share This Page