TH440 (4T60, 4T60-E) and TH125 question

[Batman96LS]

is the torque converter between the TH125 and the 4T60(E) interchangeble?

[TheProfessor]

i dont believe so

[Batman96LS]

okay let me go over this better.

the 96 monte carlo uses two seperate torque converters for the ls model on the 4t60-e. it also states that these same two torque converters can be used on the th440t4 and the th125c.

now the 1990 cutlass supreme vin d uses the th125...not really that sure of the difference between the th125 and the th125c...so if the torque converters are interchangeable for the monte would it be possible for the cutty to transfer over as well?

[sharkey]

i believe the converters from the 440t4/4t60, 4t60 e and th125c are interchangable. every converter i have put into a 440t4 and 4t60-e has 125c painted on them (i work at a tranny shop, see lots of gm fwd stuff).

the differance between a 125 and 125c is the 125c is a lockup and a 125 is non lockup. the 125 will use a different converter than a 125c, 440t4 and 4t60e.

[Batman96LS]

good deal. that's what i needed to know. now just to find out if it's a 125 or a 125c in the olds.

[DarkKnight]

I don't think the olds cutlass came with a TH125/TH125C that year. All the reference data I can find on the web suggest that it should be a 440-T4 or 4T60. BTW, if it is a '90 it would have lockup. GM stopped using non-lockup converters in FWD applications around '83 I believe.

[Batman96LS]

if you go to car-parts.com and enter in 1990 oldsmobile cutlass supreme with the 2.3L VIN D automatic trans it says that it's a 125 which is where i began getting confused. same with a site that has the torque converter...saying it's a 125 trans. it doesn't say anything about it being the "c" model though but you would assume since what year it is that it would be.

[TheProfessor]

well ill be damned
i wouldnt have guessed now i know
that is pretty sweet too bad im not gonna be able to make use out of it

[Batman96LS]

haha...and now i just realized that i can't even go ask my local tranny guy cause he closed shop until january because they are moving across town to a new building. oh well...closer to my place.

[sharkey]

its easy to tell what tranny you have.

first look at the shifter. if it says p-r-n-od-d-2-1 its a 440t4, and if it says p-r-n-d-2-1 its a th125/125c

if its a th 125/125c have a look at the front of the tranny on the drivers side. if you se a grey or blue square plug with 2, 3 or 4 wires going into it (this is the lockup plug), its a th125c.

[bszopi]

My shifter says P-R-N-OD-D-L and its a 4T60E.... So the shifter is never the best way to try to tell...

[sharkey]

never the best way, but if it says od on it, its deffinitly a 4 speed. and as far as i know, all cars equiped with the 440t4 said p-r-n-od-d-2-1 on the shifter.

[Batman96LS]

well i know that i have a 4t60-e...i just need to know what trans was in the other car.

oh...and in grand ams from about 96 they have the 4t60-e but they go P-R-N-OD-D-3-2

where as my 96 4t60-e says P-R-N-OD-D-3-2-1