I wouldn't spend a dime on it unless I completely rebuilt it.You just do not know what shape it is really in.Ĭorvette Servos are overrated, It provides greater clamping force on the 2-4 band.But also can create a overly harsh 1-2 shift. As always I really appreciate the info And I wouldn't be asking the questions if I haven't searched like crazy lol I see a lot of guys buying the vette servo but I'm not sure if I want to do that or not. If this one is good enough then all I think I need is a torque convertor with a 2200 stall and a shift kit. I sent the pics to a local transmission shop and they are always really busy but they said it was a 1990 but they couldbe just said that because they are so busy. Would this be a good enough transmission for a shift kit? and would it be good for my truck? It's a 85 c10 with a somewhat built 350. The clearance to do so is just too minimal.You was right on the spline. But if you desire to I'd recommend doing the servo before you install the transmission. There will probably always be something to do, but I'm getting to the point where I can feel confidentĪnyway, I realize not everyone is running a 700R4, much less in a 'last years' '64-'66 Lark type. While the car is up on jackstands I need to lube it and tend to a few other things. I now need to make a cover plate where I cut the hole. I probably won't test it until later tomorrow or Sunday. You can quickly scroll through this 'guide' (not mine) to see what is involved: I just chucked the thing carefully in the lathe and filed the burr off. There was a burr (a lot of people said they had them).

The only issue was getting the old servo off the rod. Everything else was pretty straight forward. When it comes out it has to go somewhere. The rod in the center is about five inches long. I got the hole 'just right.' I think a sixteenth of an inch smaller and the servo wouldn't have come out. The horizontal cut went very fast with an angle grinder.

I went through about eight of the small discs. The vertical cuts had to be done with a Dremel. While the hole looks simple it took me over an hour to decide and cut it. Wisdom says, 'Select option two.' I'm SO glad I did.

Or, cut a hole in the floor knowing if I ever had to get in there again I would have easy access. Remove numerous parts, drop the transmission down and HOPE that I had enough clearance.

This is hailed as 'The best $15 you can spend on a 700R4.' The picture shows the servo installed less the outer cover. My kids got me a Corvette Servo (700R4 transmission) for Father's Day! It's for my '64 Daytona (with Chevy 350).

Picture.of corvette servo 700r4