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A video said you don't need a computer to control a 700r4 transmission True or False?
Hello, I finally got the engine out of my junk 1985 Corvette. The engine is going into the 1958 Chevy Viking 60 two-ton truck, and I guess the transmission is going into my 1949 Ford F6 two-ton truck (for now). I watched a video that said a 700R4 transmission only needs the computer to lock and unlock the converter. Is that true or false?
(As you can see, I did not take off one wire taking the engine out.)
Hello, I finally got the engine out of my junk 1985 Corvette. The engine is going into the 1958 Chevy Viking 60 two-ton truck, and I guess the transmission is going into my 1949 Ford F6 two-ton truck (for now). I watched a video that said a 700R4 transmission only needs the computer to lock and unlock the converter. Is that true or false?
(As you can see, I did not take off one wire taking the engine out.)
You might consider replacing the converter with a non lockup converter .
My laptop must be faulty. It's not showing the part where the OP asked for suggestions. It is only showing him asking a question.
I can't seem to find in the forum rules where it says we aren't allowed to attempt be helpful to other members. Maybe you can point that out to us? To the OP: You can run a simple toggle switch and manually control the lockup function.
Hello, I finally got the engine out of my junk 1985 Corvette. The engine is going into the 1958 Chevy Viking 60 two-ton truck, and I guess the transmission is going into my 1949 Ford F6 two-ton truck (for now). I watched a video that said a 700R4 transmission only needs the computer to lock and unlock the converter. Is that true or false?
(As you can see, I did not take off one wire taking the engine out.)
yes. either with a manual switch or wire it with brake switch and 4th gear pressure switch
The converter "needs" to be locked up when in 4th gear. The planetary lube curcuit is cut to almost nothing when in 4th without the converter locked. Dont drive on long freeway trips in 4th.
When running a "non-lock up converter" in a 700R4.....You have to install a "Lube Valve" in the pump to correct the lube curcuit. This REQUIRES a non-lock up converter, The stock converter will not work.
The lock up is easy to hook-up with a dual brake switch, wire, pan gasket & some ATF, Search this forum, Ive posted on this subject alot.
Untill you do something run it in 3rd, Driving on long freeway trips in 4th WILL burn your planetaries down. I couldnt count the "Blue" gear sets ive seen from being overheated
So it is possible to do but you must change the torque converter and modify the transmission to lube without lockup. Or else
clinebarger aka "Chris Linebarger" is one of the top 4l60/700R4/4l80e builders in the country. He walked me through my 4l80e build in 2018 and has thousands of posts helping people rebuild their units. I am familiar with his process and trust his perspectives.
There are only 2 builders I trust, clinebarger and 'probuiltautomatics' aka Dana at probuilt (700r4l60e.com) I wouldn't buy a transmission from anywhere else if I wasn't doing them myself
My friend has a 1969 with a 700R4. The shop wired in a switch as stated above. He did the complete Route 66 and back from Chicago and the Power Tour with no issues. That is quite a bit of mileage.
So do you have a manual switch to lock the converter? Because people say if you don't you burn up the transmission.
I built the car a long time ago, but IIRC there is a 1 wire switch hooked up to the brake light switch.
I know you are trying to do a budget build, but I would suggest going with a 4L60E and a standalone TCM. I blew the 700R4 in my car and if I do keep it automatic that is the route I am going to go.
I built the car a long time ago, but IIRC there is a 1 wire switch hooked up to the brake light switch.
I know you are trying to do a budget build, but I would suggest going with a 4L60E and a standalone TCM. I blew the 700R4 in my car and if I do keep it automatic that is the route I am going to go.
If I am going to buy a transmission I would buy a TH400, it is a stand alone and is heavy duty, for either of the 2 ton car haulers that I plain to use or sell. But the one I sell can temporarily have the 700R4 in it and I would only use a 4L80E for that application. I don't think the 700R4 could take hauling a car on it as well. At least everyone said the 4L60E would over heat, when I thought that is what was in it. Thanks
If you don't want lockup a shop will cut off the end of the shaft and use a non lock up converter. I ran one with a trans go manual shift kit for quite awhile it was very durable.
07-26-2023, 07:28 PM
A video said you don't need a computer to control a 700r4 transmission True or False?
