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ok, how hard is it to rebuild a tranny???

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

  1. solowookie

    solowookie 1/2 ton status

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    ok guys... I know you are gonna love this question after how much problems I've had with my tranny rebuild, but I kinda feel like pressing my luck! [​IMG]

    anyway, I'm wondering if there are any really good books on rebuilding tranny's (I'm sure there are) for the 700r4, and then getting all the raptor parts... I gotta core sitting here, and if I have time on my hands this winter I just by do this so I have a good core sitting here when my other one decides to go...

    (just an idea, if this is like doing a gear job I won't even consider it...)

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  2. DesertDueler

    DesertDueler 1/2 ton status

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    This would be harder than a gear job. The 700r4 has electronics in it. I would send i out and have it rebuilt.

    86 Jimmy 4"lift 35"MTRs Other cars 69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>
     
  3. solowookie

    solowookie 1/2 ton status

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    what makes it harder, the electronics??? (I got good electronics background)


    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  4. chevyfumes

    chevyfumes Court jester

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    Watch for the muzzleflash!
    I dunno If I had a core and a book I'd have to check it out[​IMG]... I wish I had a core for everything, I'd rebuild it, why do you think THEY want the core back... I like to call it the core charge conspiracy,,, the bastards, anyhow... sonsabitches...... Sorry that was my dad talkin'[​IMG]

    <font color=blue> I'd rather have a bottle in front of me, than a frontal lobotomy!
     
  5. solowookie

    solowookie 1/2 ton status

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    LOL... yea that was a pretty funny post!!

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  6. Liberator

    Liberator 1/2 ton status

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    I've heard,,,,,, it's not hard to do but there are some expensive "special tools". Don't know how valid this claim is though! Chilton's makes a rebuild manual. The cheapest way to go would be to buy the manual and decide for yourself whether or not you can do the job!

    Bo

    If it breaks, it wasn't good enough!
     
  7. solowookie

    solowookie 1/2 ton status

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    I was just talking to capt. about this, and I think I'm not gonna do it...

    guess I'll save up for the raptor, but I think I'm gonna have my hands full for awhile getting Jedi Mind Trick back on the road, and rebuilding Insane Ewok also...

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  8. 1986Blazer

    1986Blazer 1/2 ton status

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    Raptor?????

    Please explain.

    <a target="_blank" href=http://www.geocities.com/keywestk5/KeyWestK5.html>http://www.geocities.com/keywestk5/KeyWestK5.html</a>
    So I says to him, I said, "get your own monkey."
    1986 K5, 350 GM Crate, 700R4, NP208
     
  9. Wheels

    Wheels 1/2 ton status

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    The best book for rebuilding a 700R4 is available from the Automatic Transmission Service Group (www.atsgmiami.com). Goes through the complete tear down and build up. The are two books, one for 82 to 86 and one for 86 to 92. Transonline has a pretty good data base for the 700 also (www.transonline.com). The electronics in a 700R4 makes it a 4l60E. There are some electical components in the 700R4 such as the pressure switches, heat bulb, and solenoid for lock up. Special tools needed are two 2" c-clamps for the low-reverse piston retaining ring and a very large hose clamp to line up the two halves of the pump. It can be done and it's a hell of a lot less than what a tranny shop will charge.
     
  10. solowookie

    solowookie 1/2 ton status

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    hey wheels, kinda sounds like you have done this kinda thing before, and that actually sounds promising... please do explain / tell your story??? (where'd you get your tranny background???)

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  11. solowookie

    solowookie 1/2 ton status

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    <a target="_blank" href=http://www.transmissioncenter.net/highperf700r4.htm>you can check out the link for the raptor here...</a>

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  12. tori89k5

    tori89k5 1/2 ton status

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    There's no electronics in the tranny's in our trucks. Like stated before, thats in the 4L60E
    We only have some switches,.... pretty basic. I just helped the guy go thru mine, it was actually pretty simple.

    1990 K5 4" lift with 33's
     
  13. CaptCrunch

    CaptCrunch 1/2 ton status

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    Well basically here is the 411 on rebuilding a 700R4... don't bother IMO unless you have lots of prior work w/ trannys. The 700 is the number one WRONGLY rebuilt tranny out there. Despite time and age it has become a semi tricky tranny to get done. The main problems lies in that most places modify the 700 to try and correct some problems from the factory. But to make a long story short they cause more problems, Plus then the vette servo deal is really not that bright of an idea either, especially without making some other mods to the already very weak sprag and sungear shell. Basically I have posted pretty much all the data a couple of different times and am just too lazy to type it all again [​IMG] so look it up in the archives if you are interested... I wanna say it was in the Feb-April time area. My buddy who is a tranny guru went through my so called rebuilt tranny not too long after I purchased mt Blazer and found what he calls "all the typical" things wrong. But thats why I usually say find a shop that has a good reputation for building 700's or go get a raptor or TCI 700r4 and don't look back. The 700 isn't a bad trany w/ some tweaks, but it is really far from a good tranny IMO.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  14. dyeager535

    dyeager535 1 ton status Premium Member

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    I say go for it! Check out some of the Camaro/Corvette sites, and see what people are having success with parts wise. Find out who is good to get parts from, etc. Once you have STUDIED UP on the tranny, buy the parts, a manual, and go for it. One other thing I recommend highly is one of the instructional videos where they do a whole teardown/rebuild. Kinda hard with no TV in the garage, but its MUCH clearer than reading the manual. You may want to buy the video, watch it, before you even start, to see what you are getting into.

    I just built a 200-4R, but started out with TH400's, and then some TH350's. i'm by no means an expert, but I can do just like most rebuilders do...replace clutches, seals, bushings, any obviously destroyed hard parts, and be done.

    With the 200, there are numerous hard parts updates that can/need to be done for strength, so with research, I was able to find out a lot of information, get the video, and do it myself.

    I don't know how to argue against NOT doing it yourself. Can you rebuild a motor? Did you have to learn how to do it right? Same thing. If you can take something apart, pay attention to detail, and reassemble the same way, you can do it.

    If a 700 slips, you take it apart, and you see all the clutches are shot (for example) then there is no complex mystery to putting it back together after replacing them is there, nor to the cause. No CNC work that needs to be done, no clearances down to the millionth, etc. It CAN get more complex, say if something internal isn't working right, thats why you have the manual and or video.

    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</a>
    No anti-theft measures on your truck? No pity when its stolen
     
  15. SummitXMK

    SummitXMK 1/2 ton status

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    It looks like to me that you can get the entire kit from the trasmission center and you can basically build a raptor. my opinion would be to go for it. I am also seriously considering it. If they are willing to sell you the kit you might as well try it. Save yourself 700 bucks!!! Rember built not bought!!!

    P.S. Winter is coming!!! And my sled is ready!!
    SummitXMK

    78 K5 Cheyenne 400 th350 203 With lots of miles
     

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