ThaddeusW Posted January 23, 2010 Share Posted January 23, 2010 I was poking around some of my Mack photos the other day when I was reminded of an Australian Superliner that was said to have a 12 speed Mack transmission behind a 425HP 3406B. Has anyone here ever heard of this combination? Quote -Thad What America needs is less bull and more Bulldog! Link to comment https://www.bigmacktrucks.com/topic/12341-12-speed-mack-behind-a-cat/ Share on other sites More sharing options...
Lmackattack Posted January 23, 2010 Share Posted January 23, 2010 I havent heard of a factory mack truck built with a mack trans behind an off breed engine but I guess it could be true? i would think you need to use most of the 12 forward gears to keep the cat in its power band? Quote Link to comment https://www.bigmacktrucks.com/topic/12341-12-speed-mack-behind-a-cat/#findComment-48249 Share on other sites More sharing options...
Gambi80 Posted January 23, 2010 Share Posted January 23, 2010 Right here...http://www.truckpaper.com/listingsdetail/detail.aspx?OHID=2209634 Quote Ever wonder how a blind person knows when to stop wiping? Link to comment https://www.bigmacktrucks.com/topic/12341-12-speed-mack-behind-a-cat/#findComment-48251 Share on other sites More sharing options...
Lmackattack Posted January 23, 2010 Share Posted January 23, 2010 forgot about some of the cummins. but they are still pretty rare. A few superliners I drove had Cummins but had eaton trans behin them. only seen one cat powerd mack in person. but this is Chicago and in its day it was all mack or nothing. Quote Link to comment https://www.bigmacktrucks.com/topic/12341-12-speed-mack-behind-a-cat/#findComment-48257 Share on other sites More sharing options...
HK Trucking Posted January 23, 2010 Share Posted January 23, 2010 A 12 speed behind a 3406B would be a great combination for a tractor that pulls a lowboy or a dump trailer.Since all the class 8 bellhousings, clutches, input shafts etc. are SAE standard, there would be no problem with mating the 12 speed to the Cat.. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/12341-12-speed-mack-behind-a-cat/#findComment-48264 Share on other sites More sharing options...
mackcl96 Posted January 23, 2010 Share Posted January 23, 2010 Not popular,but has been done(mack trans behind a vendor engine)If the customer wanted vendor engine(usually to match their other trucks in the fleet)They were also looking for Fuller trans(cheaper to order, rebuild and driver friendly)Know of a 1994 CL, 3406c with a Mack 18.Just look at the new Macks,All of the Mack trans are behind volvo engines Quote Thanks for hearing me out.You can have the soap box now---------JIM Link to comment https://www.bigmacktrucks.com/topic/12341-12-speed-mack-behind-a-cat/#findComment-48278 Share on other sites More sharing options...
Guest 45LMSWM Posted January 24, 2010 Share Posted January 24, 2010 I have seen newer Mack Cls with 18 speed Mack transmissions and Cummins power. I am also pretty sure that a contractor in Philadelphia ran 3406 Cats with twelve speed Mack transmissions in their lowboy tractors.-John Quote Link to comment https://www.bigmacktrucks.com/topic/12341-12-speed-mack-behind-a-cat/#findComment-48351 Share on other sites More sharing options...
Joe Ditchkus Posted January 26, 2010 Share Posted January 26, 2010 A friend of mine has a 1982 R-700 Mack triaxle dump with a 3406 Cat and 8LL. bad1989gti , You probably remember it when J+R from Pittston ran it with H+k. Owner now runs it with American asphalt. Joe D. Quote Link to comment https://www.bigmacktrucks.com/topic/12341-12-speed-mack-behind-a-cat/#findComment-48524 Share on other sites More sharing options...
mackcl96 Posted January 27, 2010 Share Posted January 27, 2010 A friend of mine has a 1982 R-700 Mack triaxle dump with a 3406 Cat and 8LL. bad1989gti , You probably remember it when J+R from Pittston ran it with H+k. Owner now runs it with American asphalt. Joe D.You know Rayjoe.......Not sure of the spelling.Is he on here..... bad1989gti ????That was Joe's truck,, then (Hook Man) ran it until he retired Quote Thanks for hearing me out.You can have the soap box now---------JIM Link to comment https://www.bigmacktrucks.com/topic/12341-12-speed-mack-behind-a-cat/#findComment-48561 Share on other sites More sharing options...
Moosejockey Posted January 31, 2010 Share Posted January 31, 2010 Durkin contractors from Philly ran a DM 800 (unit # T060) with a 3406A with a 12 speed. Also, whem I worked for Brubacher excavating, They had 2 R 754's that ran 12 speed's behind 3406A Cat's. Both trucks came from Canada originally. As a side note I currently run a CL 733 with a Mack 18 speed trans. Quote Link to comment https://www.bigmacktrucks.com/topic/12341-12-speed-mack-behind-a-cat/#findComment-48745 Share on other sites More sharing options...
GaryMac Posted March 10, 2010 Share Posted March 10, 2010 Hello from AustraliaYes I can remember several COE MACKs powered by 3406 CATS with 12 speeds fitted.They were owned by a farmer pulling fridge vans, factory fitted around about 1980s.Also of interest I can also remember three (3) R700s fitted with Cummins 400sin the mid 1970s, factory fitted for Wettennalls transport.Some early R700s V8s (865 & 866s?) were repowered with CAT 3408s especiallythose involved with heavy haulage (low loaders etc).Gary Quote Link to comment https://www.bigmacktrucks.com/topic/12341-12-speed-mack-behind-a-cat/#findComment-50970 Share on other sites More sharing options...
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