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Can a do-it-yourselfer install ring and pinions???

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by reddog64, Apr 9, 2001.

  1. reddog64

    reddog64 1/2 ton status

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    I dont want to pay someone 700 per axle when the parts are only 200 bucks to do a D44 and a 12 Bolt w/4.11's... can a home guy do it himself??? I can rebuild a engine so can i do a diff regearing??? o I dont have special tools... I currently have 3.73's...

    Um... yes officer I know it's too big...
     
  2. gokartergo

    gokartergo 3/4 ton status Staff Member Moderator

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    I'm not a mech. My brother is and he didn't want to do my gears. He hadn't done any since he was in school. I even tried to buy richmond gears video. I couldn't even get threw there email. I thought paying somebody $800.00 to do the gears when I had already bought them was way to much. My brother talked to one of the other mechs that he works with that has done a lot of gears and he is coming over to help me next weekend. I am going to pay him $400.00. Half of what it would of cost me and I will learn how to do it my self. I don't think it is something you should do unless you have somebody near by that knows what he is doing. Just my .02

    Become one with nature............Then marinate it..
     
  3. Pugsley

    Pugsley 1/2 ton status

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    Gears aren't bad to do if you take your time. If you don't have it, it will help to rent a compressor and impact. Also get a good quality manual before jumping into it. If you still feel uncomfortable after reading the manual, then seek outside help.

    [​IMG]
     
  4. BillyBob

    BillyBob 1/2 ton status

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    I think when the previous owner of my truck put in the lock right in the truck's 12 bolt, he screwed up the ring and pinion somehow. The pinion lash is pretty bad. You can hear the pinion slapping against the ring gear pretty loud, and the truck lunges foward. Then again, for all I know, the gears are still the origionals from the 1979 truck the diff came out of. I'd suggest getting it done professionally if you don't feel comfortable doing it.

    <A target="_blank" HREF=http://billybob.coloradok5.com>http://billybob.coloradok5.com</A>
    If it ain't leaking oil, it ain't my truck![​IMG]
     
  5. ftn96

    ftn96 1/2 ton status

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    I did mine for the first time with no problems other than being scared from the horror stories. But yes, you can do it. I do recommend having a magnet base adn dial indicator for the back lash setting. Other than that oyu dont really need a pinion depth guage. You can use your pattern to get a good pinion depth. ********** The only bad thing is, setting the pinion depth, you have to make sure you are using the correct bearing pre-load, and you have to keep having the bearing pressed on and off everytime you have to add shims under the bearing. If you can find a way to hold the bearing still and hone the inside of the bearing out so you can slide it on and off the pinion to install the shims, then when you get the correct pinion depth, you can then go get a new bearing from the parts store and have them press it on. Then you get to have fun setting up the backlash nad carrier pre-load.

    It not hard at all, you just have to have patience taking it apart and putting it back together over and over again.

    Will work for beer, parts and tools.
    90 Jimmy 350TBI-700R4-241-33" BFGs-10 bolts w/4.10's
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     
  6. Burt4x4

    Burt4x4 3/4 ton status

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    WOW, thoes price quotes you got are very high!!
    A local place in my town quoted me 500 bucks front and rear and I supply all the parts. I too like to do everything to my rig BUT I am 85% sure I will have a shop do my R&P swap. They tell me if I drop it of first thing in the am It will be done by the end of the day. Or I can save some $, buy some tools and burn up who knows how long to doit my self..........that 500 bucks is lookin better everytime I think about it.
    Good Luck

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <A target="_blank" HREF=http://www.burt4x4.coloradok5.com>http://www.burt4x4.coloradok5.com</A>
     
  7. ftn96

    ftn96 1/2 ton status

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    But the joy of doing it yourself and learning in the process is almost better than sex.

    Will work for beer, parts and tools.
    90 Jimmy 350TBI-700R4-241-33" BFGs-10 bolts w/4.10's
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     
  8. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Then your not doing it right! [​IMG]

    Bad Dog

    85 K30 CUCV, 350 TBI, TH400, NP205, D60/C14, 4.56
    Coming soon: 4" lift, 40" tires, massive cutting, shorter wb and rear overhang.
     
  9. ftn96

    ftn96 1/2 ton status

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    ROFLMAO!!!! Thats what my wife said till she found out she was pregnant.

    Will work for beer, parts and tools.
    90 Jimmy 350TBI-700R4-241-33" BFGs-10 bolts w/4.10's
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     
  10. CaptCrunch

    CaptCrunch 1/2 ton status

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    Well I think it depends... is this your daily driver... if it is heck no. It takes a lot of time and patience. In terms of tools I think Jeg's has a kit by someone that is $100 and give you everything you need.Usually just keep track of the original setup shims wise and put them back and it should be close... so hopefully you don't have to take it part too many trillion times. I've played around enough to say I'd much rather pay a pro to do it and have no worries then wasting my whole weekend out there in the driveway. Just my $.02

    [​IMG]
    1987 Chevy K5 Blazer- 350 TBI
     
  11. Wheels

    Wheels 1/2 ton status

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    Did mine, it's a long and tediuos process and requires a lot of patience. I did a college term paper recently on the ring and pinion installation. I have to do some editing on it and cut some useless info out but may be able to get it to the point that it can be e-mailed if you would like a copy, let me know.
     
  12. HarryH3

    HarryH3 1 ton status Author

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    BillyBob, what you're describing is a common trait of locking differentials. They have a lot of slop in them. The new PowerTrax unit is supposed to have way less backlash. But the LockRight, Detroit Locker, etc all have up to 36 degrees of play at the pinion, depending upon the gear ratio. It's most noticeable when shifting between drive and reverse. [​IMG]

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
    It's a great day to be alive...
     
  13. Triaged

    Triaged 1/2 ton status

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    That sounds cool. Could you also e-mail me a copy? triaged@earthlink.net

    '71 Blazer CST with alot of rust
     
  14. Truckdweld

    Truckdweld Registered Member

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  15. POWERMAD

    POWERMAD 1/2 ton status

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    Hey all
    Doing a ring and pinon is not that big of deal.
    Like one guy stated the pinion depth is the tricky part.
    I took a bearing and useing a carbide bit and die-grinder, I removed some material from the bearing untill it could be slid down the pinion shaft.
    I stumbled onto this trick when doing a set at one shop I was working in. The owner of the shop was filling a hole with concrete and seen the pinion on the floor and decided that it would make good filler.
    I must have pulled that diff apart 15 times until It was right.
    Check out this site
    <A target="_blank" HREF=http://www.differentials.com/install.htm>http://www.differentials.com/install.htm</A>
    Good grief what is the shop rate where they are doing those at.
    It's been about 3 years since I've worked in an auto shop, but I seem to recall that book time was about 3-4 hrs on a 12 bolt.
    See ya

    my truck's not dirty, it's earth tone paint
     

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