Q: can you replace the 700r4 with the turbo 400?

asked by on

My transmission went out i currently have a 700r4 on the truck. However i have a brand new 400 turbo transmission. I would like to know if i can replace it with the 400? Are there issues with the driveshaft or transmission housing?

My car has 200000 miles.
My car has an automatic transmission.

The turbo 400 was used on a lot of trucks with the 5.7 engine and should be bolted up if it came out of an engine with a 5.7 or 5.0 engine. As far as the drive shaft and length of it, or the splines on the output shaft, you will have to measure total transmission front to back and see if they are the same or within a 1/2 inch. The splines would need to be checked with the driveshaft.

As far as the shift linkage and transmission cooler lines, I am not sure what modifications would need to be done to make that fit without seeing the system and part in person. If you need further help, you may want to enlist a certified mechanic who can inspect the car firsthand to determine whether these modifications are feasible.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. can you replace the 700r4 with the turbo 400?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: will a temperture switch cause an engine not to start?

The engine coolant temperature sensor sill not cause the engine to die or not start, but can cause the fuel system to go full rich. The engine dies when getting hot is most likely due to an ignition spark loss...

Q: Can a faulty transmission shifter clip cause the transmission speed sensor to go bad?

The recall has doesn't involve the speed sensor. The recall is to replace a clip on the shift linkage to keep it from coming off and possibly allowing the vehicle to come out of gear and roll if the parking...

Q: Banging sound at slow speed at left rear wheel well area

Hi there. Raise up the vehicle and check all of the suspension, sway bar, ball joints, and the shock absorbers. Makes sure that everything is tight. If everything is tight, lower the vehicle and do a bounce test on the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...