Skip the auto shop - Our mechanics make house calls

Q: Transmission swap to 400 turbo

asked by on

I am going to swap a 400turbo into my 90 c1500 the tranny ha a ct-69 plate on it. Does that mean it is 1969? And if so will it work in my 1990

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

A: Hi there: The vehicle identification codes...

Hi there:

The vehicle identification codes on a GM product like the Turbo 400 transmission you’re looking at indicate three things. The GT indicates the application of the transmission; in this case Chevy Truck. The 69 indicates the manufacturing year; 1969 as you’ve guessed. The last numbers will indicate the serial number of production. You might want to have a professional mobile mechanic inspect this transmission to determine if it’s rebuilt and in good condition and if it will work with your 1990 C1500; as without verifying bolt patterns, flywheel and torque converter set up; it’s not possible for us to give you a yes or no answer on whether it will work.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: it eats up gas and i have little power when i press on the gas

Since the vehicle is over 25 years old and with over 220,000 miles the engine and vehicle may have more than one problem. If your engine is only having the problems when you get it warmed up then you have...

Q: Replacement key for a new ignition switch

If the ignition lock was replaced with a GM piece, ordered through a dealer service department by your VIN number, then it may be as easy as ordering new keys from the dealer in the same manner, by your VIN....

Q: I got a motor for my truck not to long ago and the motor will turn over a little by hand but not all the way around what could it?

There are quite a few issues that will keep an engine from spinning around completely. Something falling into the intake and coming into contact with the top of the piston, a valve hanging open and not allowing the piston to...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...