700R4, Doesnt anyone like overdrive?

[TurboStreetCar]

Nick, im not looking for "spoon fed" information, your statement negates various information ive seen about the 700r4. i was questioning your opinion, i cant google "nicks 700r4 statement" and come up with information as to why you believe they are garbage when there are people that have quite good luck with them. i wanted to discuss why you felt that way. This is a "Discussion" forum.

ive actually herd of people having quite good luck with ford AOD's as well. maybe that would be worth looking into. only problem i could figure with that is cost. ford typically cost more then GM's as far as ive seen. Ive even seen some people swaping AOD's into camaros and GTO's.

 

[TurboStreetCar]

The thing is if your building a high hp car you dont need a low first gear. Thats why drag racers use the powerglide plus it uses a lot less horsepower. You dont really need an overdrive. If its a high hp car its just one of the trade offs you learn to put up with.

well like i said im building a streetcar, i like to cruise and i dont want to be cruising at 4krpm every time i go down the expressway. im not looking for enough power to justify a th400 or even a th350, but i think its enough to question the reliability and cost effectiveness of the A340. Also theres just some things you cant do with a A340, i dont believe theres a manual valve body or transbrake available for the A340. and even if it cost the same to have a built A340 equal to a built 700r4 power handeling wise, i would still take the 700r4 becasue of the availability of transbrake and manual valve body.

 

[Nick M]

You can go ahead and find out what 3/4 clutch failure is with normal use on your own. And the O/D sprag.

Go for it.

 

[tissimo]

from IPT its $27XX and it says anything faster then 9.99 should be swaped to th400. for 3 grand i would have already swaped to a th400 rather then waste it on a stocker. Also that doesnt include a converter and a custom converter can go for anything from 500 to 1500. making a total of 3200-4200$ just on a built stocker.

Yea but this threads about OD... IMO i'd just get a TH400, who cares about OD, its just about going fast

 

[Doward]

You know, if you are really worried about overdrive, I might suggest a T56

 

[williamb82]

The 700r4, post '87-88, is a good, solid transmission.

The 200r4 is WEAKER than the 700r4, stock vs stock.

The 200r4 is a BOP (buick/olds/pontiac) bellhousing boltpattern, vs the standard Chevy Boltpattern on the 700r4/TH350/TH400.

there are bop's of the 700r4, th350 and th400. and all other variants of the th, th375, etc..

 

[TurboStreetCar]

You know, if you are really worried about overdrive, I might suggest a T56

ive considered it, but i really like the car bieng automatic. advantages of the automatic with the comfort for long cruises.

automatics are perfectly capable of what i want, its just somewhat costly and it seems noone else is intrested in what im looking to do.

 

[williamb82]

ati makes an adaptorplate kit that comes with a flexplate to bolt up their 8in convertors. why not give them a call? they have what you need. they have it for m seireis and jz series

 

[TurboStreetCar]

Intresting, the adapter kit is 699, and a converter is 790, total of 1489. not bad. gota see if it will bolt up to a 700r4, the website isnt that detailed on what transmissions bolt up to there adapter plate. Thanks will. :bigthumb:

Nick, thanks for all the help

 

[89turbosupra]

All small block chevys have the same bellhousing from 55-98? so it will bolt up but they use a different converter. I dont know how the adapter flexplate works but if it lets you use a standard th350 or th400 converter it will work for the 700r. You will have to figure out how to hook up the t.v cable though.

 

[TurboStreetCar]

could i use a vacuum modulator instead of the cable? or is that the th350/400 im thinkin of, i remember one of the trannies having that. maybe they have both?

 

[williamb82]

that flexplate requires you to use one of ati's own manufactured 8in tq convertors. so as long as they make one for the 700r4 your good. give them a call. and this adaptor plate will bolt any chevy bolt pattern trans to the plate from 55-97. im using a plate like that for my t56 swap, but im making it myself.

 

[TurboStreetCar]

yea they have a 8 inch converter for the 700. looks like thats the kit to get. maybe even the 4l60 because i hear those can be built to handel 900horsepower line its no problem. then the only issue would be getting a standalone tranny computer to run it. that could get costly.

 

[89turbosupra]

Dont bother with the 4l60e when you can get a 4l80e for roughly the same price.

 

[TurboStreetCar]

i thought the 4l80 was too big? i herd of tunnel modifications to fit that, unless thats something a hammer can take care of i, wouldnt really want to go performing surgery.

 

[Isphius]

the 4l60e is exactly the same as the 700r4 mechanically, its just renamed and is computer controlled. And the 700r4 is not a POS, its actually very tough aside from the overdrive and torque converter, both of which there are upgraded parts for, and the TC should be replaced on a used trans anyway. The TH400 is completely overkill for any 7m. A turbo 400 is overkill for a mild big block, and aside form sucking up 40% of your power, it also weighs a ton. The th350 will handle any amount of power and torque you can make out of the 7m and it wont kill your gas mileage, and it is STILL overkill. And any gm trans has a vaccum modulator and a detent cable. Im not sure how or what they do, but the vaccum can go on any manifold vaccum and i think the turbo boost doesnt effect it, cause i know turbo and supercharged cars dont have problems with them, and the detent cable just has to be at full open when the throttle is. And if their is an adapter for the th350, then the 700r4 will bolt right too it aside from the trans crossmember, but that is very easy to make. And also the driveshaft. The 700r4 is a good bet, just dont get one from a camaro or firebird because they will have a big mount for the torque arm which you wont have.

 

[kwnate]

So a TH350 will handle 685ft lbs no problem?

 

[89turbosupra]

A properly built th350 can handle that. Im building a 496 that will make 739 ft/lbs and Im going to use my hughes racing th350 because they said it should hold it.

 

[Nick M]

the 4l60e is exactly the same as the 700r4 mechanically, its just renamed and is computer controlled. And the 700r4 is not a POS, its actually very tough aside from the overdrive and torque converter,

You know why the rename? All the upgrades it went through.

At least Ford still calls the AXOD, the AXOD.

 

[toyman1987]

You know why the rename? All the upgrades it went through.

At least Ford still calls the AXOD, the AXOD.

You need to get your facts straight before you go posting bullshit. GM renamed ALL of the transmissions, 700r4=4L60 and then went electronic hence the 4L60E. the th400 is now called 3L80.
the rename is so they have a common Base. all of the 3 US companies did the same thing.

1st number = how many speeds
2nd letter = T (transverse) or L (longitudinal)
3rd 2 digits = Torque capacity, higher number = higher torque cap.
4th letter = E = electronic control.

as for Ford AXOD, changed to AXODE in 91-92 AND IS NOW CALLED AX4S, So NO it's NOT still called a AXOD.

as for the 4L60 being a peice of shit, properly Built the 4L60 can Handle 700-800HP