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Shift Pattern plate for TRQ-720 trans


57 bcr

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Need a shift pattern plate (diagram) for a TRQ-720 trans.Doesn't have to be new,just decent & readable.PM me if you have one you would like to sell. Thanks..........Al

IF YOU BOUGHT IT, A TRUCK BROUGHT IT..AND WHEN YOU'RE DONE WITH IT, A TRUCK WILL HAUL IT AWAY!!! Big John Trimble,WRVA

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Joe,

The Watt's version is for an 18 speed where you go from 4th high to 5th high (not splitting 5th gear at all).My trans according to the manual is a 20 speed,where you do split 5th gear.A little different.Thanks for the suggestion,though.I will check with Matt if I can't come up with anything from anybody on here,he is a busy man! Al

IF YOU BOUGHT IT, A TRUCK BROUGHT IT..AND WHEN YOU'RE DONE WITH IT, A TRUCK WILL HAUL IT AWAY!!! Big John Trimble,WRVA

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Joe,

The Watt's version is for an 18 speed where you go from 4th high to 5th high (not splitting 5th gear at all).My trans according to the manual is a 20 speed,where you do split 5th gear.A little different.Thanks for the suggestion,though.I will check with Matt if I can't come up with anything from anybody on here,he is a busy man! Al

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Joe,

The Watt's version is for an 18 speed where you go from 4th high to 5th high (not splitting 5th gear at all).My trans according to the manual is a 20 speed,where you do split 5th gear.A little different.Thanks for the suggestion,though.I will check with Matt if I can't come up with anything from anybody on here,he is a busy man! Al

AL, Here's the way mine looks in my BCR. Jake

post-770-0-87261700-1384108258_thumb.jpg

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I believe that is the correct plate Al in the picture for a TRQ720. a TRQ72 would be direct in 5th. the TRQ720 is direct in 4th, over in 5th. I pretty much think a an 18 speed and 20 speed over is the same thing.

10-4 Matt.Thanks

IF YOU BOUGHT IT, A TRUCK BROUGHT IT..AND WHEN YOU'RE DONE WITH IT, A TRUCK WILL HAUL IT AWAY!!! Big John Trimble,WRVA

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I never really figure out the 18 and 20 speed stuff. I now the 0 in 70 is overdrive and means it direct in 4th and over in 5th and then you don't use the two auxillary gears you get 18 . they started out with 20 speed direct quads then the 20 speed over the it went to an 18 speed over. one was a TRQ72 then there was TRQ720 and TRQ7220 and TRQ7210. I think the 7220 means double over and the 7210 is a single over. im probably wrong but someone will chime in.

post-6-0-64947600-1408238925_thumb.jpg

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I looked through some of my Mack literature and Mack calls the TRQ-720 and TRQ-7210 a 20 spd trans. The B model operations manual then includes a ratio chart showing the TRQ-720 (20 spd) has 16 speeds that are available for practical use and the TRQ-7210 (20 spd) has 14 speeds for practical use.

Mack list the TRQ-770 and the TRQ-7220 as 18 spd overgear transmissions. There is a list of all the ratios with none deleted that are impractical, going backwards or super close. Following the progression of ratios in the chart, I get 14 speeds for the TRQ-7220 and 16 speeds for the TRQ-770. Understand this is my speculation and is not official Mack info. I was trying to find official Mack info on the gears that weren't practical for use.

In the BMT Wiki, there is a list of the quadbox ratios.

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Jim

It doesn't cost anything to pay attention.

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