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Old 01-06-2012, 09:37 PM
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4L60E compatibility question

My transmission went out on my 2000 GMC Sierra 1500 4 Wheel Drive (5.3) I have a line on a low mileage 4160E out or a 2000 S10 4X4. When talking to a guy at a wrecking yard he told me that his compatibility book only showed a few models and only two years that GM transmissions were a direct swap into my PU. (Full size vehicles: Silverados, Suburbans, Sierras.) I think it was 2000 and 2001. And he said that the S10 and Jimmy's weren't on the list. Is he correct or will the tranny out of the 2000 S10 4X4 bolt up and behave correctly? Torque convertor compatible too?

I have seen some used 4L65E's out there. Somewhere I read that 4L65's will work too if I change the tail shaft and linkage out with the ones in my truck. True?

Also any pointers on replacing this transmission -things to look for, things to do, not to do, etc. - are appreciated. For some reason I've always been able to get by without messing with auto trannys. Looks like that's over! Oh well, now I get to learn something new!

Thanks in advance

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Old 01-08-2012, 12:52 PM
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trans

look at ur pump it either says PWM or not. whichever trans you get make sure if you originally had one thats PWM that you replace it with another PWM unit. PWM stands for pulse width modulation. its how the trans computer communicates with the trans. i believe all v8 applications are interchangable. after '95 i think all the 4l trans were PWM, check a pull-a-part junkyard if you have one nearby, they sell trans you pull urself for 75 bucks. i got a decent unit i flushed and its working fine. i would put in a inline trans filter to help extend trans life. just my opinon. good luck sir
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Old 01-08-2012, 05:05 PM
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Quote:
Originally Posted by gonzo08383
look at ur pump it either says PWM or not. whichever trans you get make sure if you originally had one thats PWM that you replace it with another PWM unit. PWM stands for pulse width modulation. its how the trans computer communicates with the trans. i believe all v8 applications are interchangable. after '95 i think all the 4l trans were PWM, check a pull-a-part junkyard if you have one nearby, they sell trans you pull urself for 75 bucks. i got a decent unit i flushed and its working fine. i would put in a inline trans filter to help extend trans life. just my opinon. good luck sir
from at least 95-up 4l60e's are PWM.
to the OP, the trans from the s-10 will bolt up and live for awhile, but in order for it to work with the t-case from your fullsize, youre going to have to swap out the t-case adaptor.
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Old 01-09-2012, 11:18 AM
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Quote:
Originally Posted by gonzo08383
look at ur pump it either says PWM or not. whichever trans you get make sure if you originally had one thats PWM that you replace it with another PWM unit. PWM stands for pulse width modulation.
ALL 4L60E transmissions with REMOVABLE bells were PWM.

ALL 4L60E transmissions with INTEGRAL bells starting in 1995 were PWM.

ALL 4L60E transmissions with INTEGRAL bells ending in 1994 were Non-PWM.
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