Looking to replace my crap 3-speed auto that came with my 82 Trans am. The 700R4 currently does look too appealing so I was just wondering what is a recommended 4-speed w/overdrive auto transmission for my car?

 

700R4

 

http://700r4.com/sitemap.shtml

 

Thanks guys but there seem to be a growing number of threads with people having issues with their 700R4 tranny. Maybe I should go a with a brand new one instead of a rebuilt one.

 

They only have problems if theyre high mileage or havent been taken care just like any other transmission. really your only other option would be a 4l60e which is basically a 700r4 but electronically controlled

 

Interesting, didn't know about the 4L60-E.

 

i abuse the **** outta my 700r4, and soo did the past 2 owners, and it still shifts fine after 135,000 miles

 

if you get a used 700r4 get one built after 1987. this way you dont have to wire up tc lock up. just my opinion but 700r4 are a great tranny

 

most '87 and up 700r4's are electronic lock-up. it was the early ones that had the tcc valve train in the valve body. either way, it will have to have some kind of electrical signal to provide power to the lock-up solenoid. most '87 and later it was done by computer.

 

The 700R4 made after 87 will work in my 82 TA without a lot of messing around?

 

no 82 - 86 used the computer to lock up. in 87-92 they used the aux valve body for tc lock up.

 

yes the 700r4 after 87 will bolt right in just like all 700r4. the changes in the 87 and up models is internal. prior to 87 the tranny needed a 12 volt source to lock the tc. after 87 they used aux valve body to control tc lock up.

 

wrong!! the '87 and up use the ecm to lock-up the torque convertor. the aux. valve body does nothing more than act as a cusion of sorts. i am using an '86 model transmission in my '87 camaro. my original tranny had an aux. valve body. the '86 model does not. my tc still locks up when it is supposed to. some '86 and earlier valve bodies used a valve train in the valve body itself to do a hydraulic activated lock-up. most '87 and up is all ecm. disconnect your connector and see if your tc still lock up. all of the 700's need a 12v power source to activte the lock-up solenoid. in the '87 and later, this is controlled primarily by the ecm as the later valve bodies had this valve train eliminated.

 

well mine must be the exception because it uses passeges in the valve body to control lock up

 

so your tranny doesn't have an electrical connector at all? if it is not used then somebody has put an eraly valve body on it. all 700's still have a tcc valve in the pump. but they all require a solenoid to do the actual lock up unless it has been modified somehow. the early 700's had the valve train in the valve body to lock it up but it still required an electrical current to activate the solenoid. some do it by using a switch to ground the solenoid. the aux. valve body cusions the initial shift into gear from park or neutral.

 

a good 700r4, a built 700r4, or a taken care of 700r4 will give you no problems. Espically if you aren't putting out tons of power. I have a pretty modified engine and have no problems with my stock 700r4.