twin_screwbulldog Posted July 28, 2005 Share Posted July 28, 2005 Is there a 5 speed single stick for a B model that can be switched out with a 15 speed duplex thats in the truck? And , does anyone know where I can find a 5 speed trans for the B? Quote Link to comment https://www.bigmacktrucks.com/topic/172-15-duplex/ Share on other sites More sharing options...
Lmackattack Posted July 28, 2005 Share Posted July 28, 2005 If you plan on pulling anything with a B model I would not install a 5 speed unless you have a maxidyne engine. the turmodynes engine needs more gears to keep the engine in the power band when pulling a load Quote Link to comment https://www.bigmacktrucks.com/topic/172-15-duplex/#findComment-638 Share on other sites More sharing options...
b61fred Posted July 28, 2005 Share Posted July 28, 2005 Is there a 5 speed single stick for a B model that can be switched out with a 15 speed duplex thats in the truck? And , does anyone know where I can find a 5 speed trans for the B? ←I have a tr67 5 speed trans thats in a b model, Its for sale,or trade? has 16,000 miles total on it, no overdrive. I am in SW Indiana. call 812-381-0983 anytime.cj5fred@aol.comThanksFred Quote 15 gears...no waiting! Link to comment https://www.bigmacktrucks.com/topic/172-15-duplex/#findComment-640 Share on other sites More sharing options...
Lmackattack Posted July 28, 2005 Share Posted July 28, 2005 what engine does it have fred? is it used in HD or off road useMost of the B models I have seen that had Diesel engines came with 10 or more gearsI know some fire truck B models had 5 speeds but they were gas jobbers Quote Link to comment https://www.bigmacktrucks.com/topic/172-15-duplex/#findComment-641 Share on other sites More sharing options...
b61fred Posted July 28, 2005 Share Posted July 28, 2005 what engine does it have fred? is it used in HD or off road useMost of the B models I have seen that had Diesel engines came with 10 or more gearsI know some fire truck B models had 5 speeds but they were gas jobbers←This truck has the 707 gas engine, also has 6.14 rear gear ratio, You are right that not too many diesels have 5 speeds with the thermodyne engines. Unless you are going to pull totally maxed out loads, I think it will work ok. This trans has no overdrive, this will have closer gear ratios that say the maxi torque trans that was with the maxidyne engines, I could get the ratios for this trans for comparison. Fred Quote 15 gears...no waiting! Link to comment https://www.bigmacktrucks.com/topic/172-15-duplex/#findComment-642 Share on other sites More sharing options...
b61fred Posted July 28, 2005 Share Posted July 28, 2005 This truck has the 707 gas engine, also has 6.14 rear gear ratio, You are right that not too many diesels have 5 speeds with the thermodyne engines. Unless you are going to pull totally maxed out loads, I think it will work ok. This trans has no overdrive, this will have closer gear ratios that say the maxi torque trans that was with the maxidyne engines, I could get the ratios for this trans for comparison. Fred ←5TH- 1.004TH-1.293RD-2.302ND-4.351ST-8.05 Quote 15 gears...no waiting! Link to comment https://www.bigmacktrucks.com/topic/172-15-duplex/#findComment-643 Share on other sites More sharing options...
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