Thread: 4L80 damaged
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Old 09-18-2020, 10:59 PM   #13
clinebarger
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Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
Re: 4L80 damaged

Quote:
Originally Posted by HAULIN' IT View Post
Also, I feel Richard is "Right on" with his thinking. The manufacturers as far back as I can recall (mid -60's) moved the speedometer input from the transmission (2wd) to the transfer case (4wd) on the trucks because they must have felt there was value in the speedometer working correctly in Lo range...why wouldn't one want the computer that will be trying to shift the transmission knowing the true speed, after all it is an input to the computer?
Just like he is thinking: "Hey, it works. Who uses Lo range much anyway?" must be the mind-set of the aftermarket suppliers.
Correct......BUT, The old 3 speeds & Hydraulic 4 speeds still had the Governor on the Trans Output & have no way to alter shift points based on T-Case Reduction.

Last edited by clinebarger; 09-19-2020 at 12:55 AM.
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