The real differences in 700r4/4l60/4l60e transmissions by year

[thz71]

Will a 96+ 4l60e fit a 94 ?

Live action!!

No...

 

[1997k1500Calvin]

No...

So I have to have a 94 specific 4l60e?

Live action!!

 

[thz71]

So I have to have a 94 specific 4l60e?

Live action!!

No just read the first post in this thread

 

[1997k1500Calvin]

No just read the first post in this thread

It says 93&94 Trans are same, then 95 changed, then 96 changed again, no specific 96 won't work with 94 and why

Live action!!

 

[ccreddell]

94 computer doesnt have the controls for the 96 transmission.

 

[98_k1500]

The problem with putting the 96 trans in the 94 is the PWM valve body / pump/ TC lock in the trans. 94 has no way to control the PWM circuits in the 96 trans.

 

[1997k1500Calvin]

The problem with putting the 96 trans in the 94 is the PWM valve body / pump/ TC lock in the trans. 94 has no way to control the PWM circuits in the 96 trans.

Oh ok thanks

Live action!!

 

[BillMaxon93]

I have a 93 Silverado with a 4l60e. I was told by a dealer who checked my vin said that this was a 1 year trans. Is this true and is it possible to swap in a 700r4?

 

[98_k1500]

93 and 94 are interchangeable. a 700r4 could be swapped in, but its going to cost more to get it right than if you just fix yours or find another direct swap.

 

[mattgotachevy]

So maybe someone can chime in. Before I knew anything about the 95 being a 1 yr only transmission, I swapped in a different 4l60. Everything seems to work except that it wont shift into second. I put it in drive and go forward and have to let off the gas to let it shift into third and then if i try downshifting to second it just acts like its slipping. I also have overdrive tho. I dont know what year 4l60 is in it and i dont have the old transmission either.

Also as stated in the first post about converting a 96 to a 95 style trans. Is it bad for a transmission to "cut loose"? as its described it sounds like its ok to just swap the solenoid and deal with the effects of doing so.