27
The input and output shafts need to be marked Then put in a particular gear Rotate the input shaft ten revolutions and count the output shaft revolutions. Or read the specs in the manual OR disassemble the trans and count the gear teeth.
The parts will only work if you use an oil pump that goes with the chosen shaft. In other words, one must use a 27 spline shaft with a pump made for 27 splines. And to use a 30 spline pump you must use pump made for 30 spline shaft. Then you run into the complication of 30 spline pumps are made for 1987 and newer transmissions which have an auxilary valve attached to the valve body surface. So you now have to go out an buy a 87 or newer trans case. Meanwhile the dollars are flying out of your wallet. Finally the torque converter is also matched to the input shaft. So to make a long story short. If you have a 82- 86 700r4 with a 27 spline shaft keep it the same, or if you 87 or newer 700r4 has a 30 spline shaft keep it.
they are pressed together pry them apart
It is on the rear left of trans, and does screw in.
It might. You'd need to check the diamter of the output shaft of the trans.
The front spline portion of a drive shaft out of a 400 trans is what you need. It can be installed on any drive shaft you have of proper length. U-joints come in many sizes and styles and are very common. 400 transmissions are getting old I would start looking in older out of the way salvage yards for a front spline yoke out of a 400
I believe it's called a trans-axle output shaft seal. Could also be the front differential pinion seal.
No. There is no such thing. TAke it to a local garage and have it properly diagnoised and an estimatee for repair.
Yes, But you will have to move the rear transmission cross member and more then likely have to change the drive-shaft. It would help alot to know what year and model it is. That would have alot to do with your modifying that you would have to do. measure the size of the output shaft to the rear pinion seal at the differentials yoke. (were the ujoint on the driveshaft meets) I've had two drive shafts altered at a local machine shop for about 200 dollars. im sure the spline count on the 400 transmissions output shaft will match the rear for its particular application is on GM made vehicles. also keep in mind anytime you would want to change a transmission that it has a bellhousing (where trans meets and then connects to the rear main of engine) that will bolt up to the back of the block.
you can, but it will require you to replace the output shaft on the '95 trans. with your old '90 model, as there is a worm gear built onto the old style output shaft to drive the speedometer cable. To replace the output shaft, you have to nearly completely teardown the transmission.
Yes...they are the same. The only thing to look for is the tail shaft length. There is a a short shaft and long shaft.
Yes. But! You will have to change the rear out put casing and output shaft.