2018年2月5日 · Mack 5 or 6 speed direct with 22.5 tires and 1:1 trans 44MPH in top gear T2090 Mack 9 speed with 22.5 tires and .71 OD puts you at 62 MPH in 9th gear 12 speed mack with 22.5 tires and .78OD 57MPH in 12th gear 8LL with 22.5 tires and .60 …

2009年5月19日 · A Mack Quadruplex is a 5x4, all in one integral unit, as opposed to other types of 5x4 setups that use a 5 speed main transmission connected to a 4 speed auxiliary transmission with a short external driveshaft & U joints between the main & auxiliary.

2015年8月12日 · I was recently looking at old brochures on f models and although they had maxidyne 675 and 676 paired with maxitorque 5-speed, the mack etaz 673a (300 plus) was paired with 10-speeds or better. based on the horsepower and torque ratings and rpms, it seems like the 300+ was a higher revving engine...

2013年10月21日 · FMI 5 is an electrical problem. Open circuit, Bad injector, break in the harness or bad EECU. First guess would have been a bad connector to #5 injector. Mack had problems with the connector terminal heating up and loosening. But since you already replaced the harness its probably a bad injector. If it was me I would replace the injector.

2017年11月1日 · The 5 speed Maxitorque was available and used with the V8 Maxidyne engines. IIRC the later 300 series Maxitorque wasn't built in a 5 speed version, but the 6, 7, 8, etc. speed wide ratio Maxitorques were used with Maxidyne versions of the Mack 12 liter and Volvo based 11 and 13 liter engines.

2010年4月17日 · Hello AllI am looking to buy a R model. Always have liked Macks but never had the money to buy one, but now I do. Can spend about 5k. In regard to the 5+4 transmission. Is it possible to shift the 5+4 as only a 5 speed. Are all the 5+4 made by Mack. I really want a truck that is ALL Mack. Thanks

2005年9月26日 · a 2 stick 6 speed is realy a 5 speed with the option of a low first gear for extream off road or heavy hauling. the main box has 5 foward gears. the aux has revers, Low and direct. under normal use . you only shift the main stick (closest to your leg).1-2 …

2009年2月5日 · BigMackTrucks.com is a support forum for antique, classic and modern Mack Trucks! The forum is owned and maintained by Watt's Truck Center, Inc. an independent, full service Mack dealer. The forums are not affiliated with Mack Trucks, Inc.

2012年7月17日 · You're exactly right. I've often said that it takes much more skill to drive a 5 speed Mack than most Roadranger transmissions, you do need a good sense of timing to drive them. Once you get used to them you'll love it. I went from a Transtar International with a VT903 Cummins,13 speed, to an F-model 300 5 speed.

2011年11月7日 · 78 mack , 235 hp with a 5 speed , man i keep thinking i need to put a 2 speed rear end in it . The step from 4th to 5th gear is just to much . 2 speed rear would really help . Quote