rebuilding 700r4?

[ocbaud]

how hard would it be for a normal person, like me, to rebuild a 700r4 enough for it to withstand a decent amount of power and last a while?

[79BIG10]

I've heard that it is tough since you have to have all the right tools. I would spend the money and get a reputable shop to do it and then also get a warranty that they will back up. Plus you can tell the shop what exaclty you want and they can tell you if it's possible or not.

[ocbaud]

oh, ok





i was gonna look for one to build up while my engine is pulled so i can sell my th350 along with it.

but i guess i'll keep my 350 for the new engine

[swervin ervin]

I wouldn't ever think about rebuilding a 700R4, or any automatic for that matter. I consider myself a decent mechanic, but this is something that needs many special tools and know how to do. There are truckloads of critical tolerances and such.

I have always been one to where I would buy a book on how to do something if I didn't know how. Has always came though for me. I guess if I really wanted to rebuild a tranny, I could get a book and buy or rent the tools, and probably be successful at it. But the way I look at it, sometimes it's just better to have some things done by a professional. I think this is one of them.

[RockHQ]

Ocbaud, rebuilding an automatic transmission is not as difficult as it is made to be, much like setting up a rear end (that's a good example because the amount one usually has to pay has no real relation to the difficulty of the work itself, but more to the amount of time it takes).

Many of the "special" tools needed when overhauling a Turbo-Hydramatic can be substituted with less refined ones with a little creativity and time, or if absolutely necessary, bought or loaned. ATSG repair manuals have detailed information regarding everything you'll need to know to rebuild a transmission. Rebuilding a transmission to withstand more torque than in stock form really does not differ from just doing a standard rebuild.

You'll not lose anything if you try it yourself. If you do try it, just make sure you know each and every shim, checkball,preload spring, their correct places and positions etc. when you take it apart, clean and assemble back together. Ask questions, read, learn and progress when you're sure you've got it right.

There are truckloads of critical clearances in a v-8 engine too, yet people rebuild them in their garages.

Okay enough of my ramblings.

-Axle

[TIMSPEED]

I will probably swap a 700R4 into my truck in the near future...just because I want to have that Overdrive, so I can cruise it on the freeway.

[slammedLT1]

i work at a local transmission shop. i am in r & r and have done complete tear downs , a rebuild is definatley not an average job especially when it comes to the valve body and v.b. valves and etc. i ve seen guys that have done trannys their whole lives and go crazy because the thing has valve body problems or stuck valves
i would bring your used tranny in and get it rebuilt saves the r & r labor and makes it one hell of alot cheaped than buying one off the shelf.
-to babble to that last one, rebuilt a post 88 tranny, helluva lot stronger, secondary pump, and many updates...

anyway hope i helped,, something to consider anyways...
late

[ocbaud]

Originally posted by slammedLT1

-to babble to that last one, rebuilt a post 88 tranny, helluva lot stronger, secondary pump, and many updates...

anyway hope i helped,, something to consider anyways...
late

but of course