Ken, The other day I was at the local Chevy dealership. I ran into the
guy that owns a large local independent transmission shop. I asked him
"how is business?" He said " great as long as they keep making these
junk transmissions". He was there to take delivery on his brand new
corvette roadster with the $54,000 window sticker.
I have been doing automatics since 1969 myself and I stopped doing the
new ones because the rule of thumb in the business is you have to charge
three times the labor to cover the come backs you are sure to get. I
could go into detail about why they are junk but that would take up
pages.
The only trans GM makes that's worth a damn is the 4L80. Its not legal
to change yours over to that trans though, because the computer won't
run it right for the smog laws. I know guy that never tow over 55 MPH
and never in OD and still have lost the trans in less than 50K miles.
Aint I just a breath of happy news? Doug Odom in big ditch
Ken Bond wrote:
>
> Greetings,
>
>
> Transmission: The trip cost me a transmission rebuild and I found out why.
> I was pulling with a Chev truck with a 4L60E transmission. It so happens
> that in over-drive, half of the fluid is diverted from the cooler and
> emptied back into the pan (to help gas milage as I am told). Anyway, it
> appears to be a good idea NEVER to tow in OD with one of the 4L60E trans as
> in the 96 Chev. trucks. (Later models have a lock out button, but my truck
> did not.) I have also learned that you can replace the converter clutch
> valve with a different unit that directs ALL fluid back through the cooler
> and it is recommended if you drive at sustained high speeds in over drive
> with or without a trailer.
> If I had known that before the trip, the plastic in my wallet might not be
> quite as hot. I was using OD ONLY on flat and downhill terrain and it was
> still to much for the unit. Bummer!
>
> I would be interested in others with a better understanding of this issue
> commenting.
>
> Good to be back
>
> KEN
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