The overall length is real close to 31". The tail shaft housing is 7 1/4". The pan is square.
There is a tranny mount just in front of the tail shaft housing. The numbers on the tranny housing just above the rear of the tranny fluid pan on the pass side are:
Anybody have a decoding ring that will translate this? I got as far as the year; 1984.
Sure would appreciate the rest of the info, especially the vehicle it was on.
Lastly, the search engine on this site still has me by the short hairs so I have not found any info on one of the key differences between the early and late R4's. I had a built R4 (pre-1986) on a car sold several years ago. The tranny drove me crazy. :banghead: It would shift from first to second whenever it wanted. There was nothing I could do to keep it in first. It did go to a higher RPM shift point under WOT but still was shifting fron 1-2 about 4 grand. No one I talked to could tell me why this was and what I could do about it. Finally asked a techie manning the booth of one of the tranny companies attending a GG show in Pleasanton. He looked over his shoulder at a dude sitting back by their tailer and said to ask him. Turns out it was the prez and guru. He told me that there was a valve(?) or valve body mod (?) that the later R4's have and, if it had been installed by the tranny builder, I would have been smiling instead of crying. I ended up selling the car about 2 weeks later so never discovered if what he said was true or not.
If this tranny turns out to be a 700R4, I sure as heck want that valve or whatever it is that will allow me to hold the tranny in first as long as I want!
Anybody know the part I'm talking about or what it takes to mod the tranny to hold that 1 to 2 shift?
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
Chevy Tri Five Forum
A forum community dedicated to 1955, 1956, and 1957 Chevy owners and enthusiasts. Come join the discussion about restoration, engine swaps, reviews, performance, modifications, classifieds, troubleshooting, maintenance, and more! Open to all models including Belair, 210, 150, Sedans, and Nomads.