Th-400 Downshifting On The Street?

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pitts64
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Th-400 Downshifting On The Street?

Post by pitts64 » Fri Oct 09, 2015 8:46 am

Does it do any damage to down shift my TH-400 when going down a hill or hold it in second when cruising a curvy road?

My car has a Pontiac 462 motor, 13" converter and a 2.56 posi..

Thank you....

mike hohnstein
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Re: Th-400 Downshifting On The Street?

Post by mike hohnstein » Sat Oct 10, 2015 10:50 pm

That's exactly what the intermediate band is all about.

pitts64
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Re: Th-400 Downshifting On The Street?

Post by pitts64 » Thu Oct 15, 2015 8:08 am

Thanks Mike...

numboltz
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Re: Th-400 Downshifting On The Street?

Post by numboltz » Sun Oct 25, 2015 10:34 pm

Back in the day when I was doing lots of 400's and tons of 350s I discussed the
cost with the customer over the remains on the tear-down bench many times. A standard schtik when looking at a thoroughly fried overun band was to ask "how old is your son?

"How did you know?" or some similar variation was the usual response. The bands, although not interchangeable between the two, were very similar [small] in size. And, never used if you only selected Drive, Neutral, Reverse or Park. So, old fudds and women could have a trans with way over 100,000 miles on it and the band would be a virgin.

If you started off in second, then shifted to drive, the band would live forever.
If you downshifted to second at modest speeds, the band would live forever. But downshift at high speeds all the time and you become a customer. :mrgreen:

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