Aux valve body is in newer 700r4 i think 86 and newer. So It Is Really Important To Have The Throttle Cable Adjusted And Functioning Right.
Okay, the cleaner one appears to be an 'MD8' case and the dipstick tube does seem to be out of an 'F' body car. I can't tell on the other tranny what case it has cause it's too greasy but I believe that dipstick tube is from a 'B' body car.GM made 3 types of cases. They made an 'MD8', a 'K' and a case with no designation. You want to stay away from the case with no markings. These are the worst 700's built. The cases are weak which leads to warpage and they will have a 27 spline input shaft which is also weak along with its internals.I'd go with that 'MD8' case unless the other one is a 'K' case. These trannys usually have 30 spline input shafts with much stronger internals.
Click to expand.The electronics in the 4L60e can be eliminated with a vaccum modultor installed internally. With the exception of the lock-up convertor, the electronics for the 4L60e regulate line pressure like the TV cable does on the 700R4 and 4L60. The vaccum modulator, when installed into the 4L60e, regulates the line pressure. When at part throttle, vaccum controls the modulator and allows for less line pressure. But at WOT there's much less vaccum pulling on the modulator thus allowing for full line pressure.