97Lt1TA

iTrader: (54)

i know the tailshaft for 96-97 4l60e is different than 94-95, but is that the only difference. also any difference cause 94-95 is obd1 and 96-97 is obd2?

can i make a 97 4l60e work in a 94 lt1 trans am?

thanks

robsquikz28

iTrader: (246)

You wil need to swap valve bodies. with shift solenoids and the tailshaft w/ sensor.

97Lt1TA

iTrader: (54)

how hard is it to swap out the valve bodies with shift solenoids?
i have a blown 94 4l60e out of the car that i need to replace the trans. i have a 97 4l60e sitting around that im trying to see if i can make it work in the 94 trans am so i dont have to go and buy another trans. just use the one i got now

ulakovic22

iTrader: (12)

I don't know how hard the swap is, but just pull both and mark them with a permanent marker on the case and then take them to a shop. Shouldn't much $$.

RamAir95TA

iTrader: (2)

Honestly I've never knew that the 94-95 and 96-97 weren't interchangeable. Hmmm...interesting!

robsquikz28

iTrader: (246)

Yep the 94-95 use a different valve body and shift solenoids with the pwm. You can swap to a 96-97 valve body setup and then use it in the 94 setup or switch from a 94 setup to use in a 96 car. But you have to swap the internals and it will work. Guess How I know?

97Lt1TA

iTrader: (54)

was it hard to do? i got a good 4l60e and i mind as well change the valve body and shiftsolenoids and the tailshaft, instead of going out and buying another trans. im see how much a trans shop can do it for, if its the price of me buying another 4l60e than i would want to do the swap myself

IronOutlaw

iTrader: (4)

Somewhere on the impala ss forums there's a whole thread telling step by step how to change them over. I think there's actually a way to do it without changing the complete valvebody.

flame

iTrader: (13)

The best way to do it would be to add in the extra wire for the pwm tcc and then get the pcm tuned for a 95. All you need to do is add the wire into the trans plug terminal U and pin it in at the pcm D6 on blue connector. Problem solved and no internal parts touched.

http://shbox.com/1/harness_connector_faces.htm click on the 4L60E tab at the bottom of the page

97Lt1TA

iTrader: (54)

good stuff. the car doesnt have a pcm in it now so i should just get a 95 pcm and do the wiring to make the 97 4l60e work in the 94 trans am i got. i should be good right.

ThreeHonks

iTrader: (10)

im going to be using a 94 4L60e and and putting it into a car run with an LSX pcm. What do i have to change over to make it run right? I have been told it will swap right in

flame

iTrader: (13)

The 94 transmission does not have a pulse width modulated torque converter lock up. It is just on or off. Not sure if the LS1 pcm will be compatible with that or not through modifying the pcm tables. It will physically bolt to the motor and will require a crank spacer and flexplate with the proper bolt pattern for the tq converter.

ThreeHonks

iTrader: (10)

I think you may have misread. i still have an LT1, I just have the EFI connection 24x kit to run it with an LS1 pcm.

I am pretty sure that the non PWM solenoid is fine, and i think I can still use the early style VSS (just change speed values in the pcm), but im not sure if the shift solenoids are the same or not. I am 99% sure it will work but im still not positive

flame

iTrader: (13)

Yeah misread the swap thing. The shift solenoids and VSS work the same there is just an extra solenoid for the tq converter lock up. You will have to figure out a way to get the pcm to control the lock up through tuning. Maybe the EFI Connection techs can help you out or at least give you a definate answer whether it will work or not.

ThreeHonks

iTrader: (10)

as long as it will shift through all gears and read the VSS I will be a happy man. If the TCC doesnt work for some reason, I'll just wire up a manual switch

flame

iTrader: (13)

I believe it will not allow 4th once the tcc codes have set but if you tune them out you should be able to make it work

ThreeHonks

iTrader: (10)

I have HP Tuners so I will be able to mess with it. If worst comes to worst, I'll just have to pull the vavlebody back out right? I shouldnt have to remove the trans I wouldnt think