Craig N Posted November 6, 2022 Share Posted November 6, 2022 Hi all. As the title says, will it fit and will it work? Not going to tow anything with it, just bobtail around. Thanks! Quote Link to comment https://www.bigmacktrucks.com/topic/70661-will-a-quadruplex-that-is-mated-to-a-gas-707-fit-on-a-diesel-673/ Share on other sites More sharing options...
Solution Freightrain Posted November 10, 2022 Solution Share Posted November 10, 2022 Depends if it is a baby quad? If it was an original gasser it likely is the small quad. Not something you want to put much torque through. Look on drivers side of the main box and find the milled flat spot. It will have numbers stamped in it. I don't know the numbers for a small quad, but the large one would be like "TRQ 7220". The "q" is for quad. If it is TRT, its "t" for triplex. TRD is "d" for duplex. The numbers denote ratios and how many OD it is. "722" would be single OD. "7220". The "0" means double OD . Just some basic information for you. There was a listing posted on here that laid out all the trans codes and ratios. I printed it off 20 yrs ago. 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/70661-will-a-quadruplex-that-is-mated-to-a-gas-707-fit-on-a-diesel-673/#findComment-514645 Share on other sites More sharing options...
mowerman Posted November 19, 2022 Share Posted November 19, 2022 just spotted this thanks larry i bought a trannsmission,,around 20 years ago for mine because the one in there is junk,all these years i wondered if it would actually fit...its a TRT 20 aluminum case and its huge al rebuilt still not sure about alignment since the date on it appears to be 1949.lol.bob Quote Link to comment https://www.bigmacktrucks.com/topic/70661-will-a-quadruplex-that-is-mated-to-a-gas-707-fit-on-a-diesel-673/#findComment-515521 Share on other sites More sharing options...
mowerman Posted November 19, 2022 Share Posted November 19, 2022 i was told it was a quad box,,,,but im assuming thats what this guy thought...bob Quote Link to comment https://www.bigmacktrucks.com/topic/70661-will-a-quadruplex-that-is-mated-to-a-gas-707-fit-on-a-diesel-673/#findComment-515522 Share on other sites More sharing options...
mowerman Posted November 19, 2022 Share Posted November 19, 2022 it came out of a B model that got burned up in a barn fire,,,guy was parting it out...bob Quote Link to comment https://www.bigmacktrucks.com/topic/70661-will-a-quadruplex-that-is-mated-to-a-gas-707-fit-on-a-diesel-673/#findComment-515523 Share on other sites More sharing options...
Freightrain Posted November 22, 2022 Share Posted November 22, 2022 Bob, TRT is a triplex. TRQ would be quad box. I don't know the number designation for big or small boxes? Yours would be TRTL. The "L" is for lightweight (alum case). Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/70661-will-a-quadruplex-that-is-mated-to-a-gas-707-fit-on-a-diesel-673/#findComment-515715 Share on other sites More sharing options...
mowerman Posted November 23, 2022 Share Posted November 23, 2022 Thanks for that Larry I’m sure it will fit Quote Link to comment https://www.bigmacktrucks.com/topic/70661-will-a-quadruplex-that-is-mated-to-a-gas-707-fit-on-a-diesel-673/#findComment-515837 Share on other sites More sharing options...
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