ranchhopper Posted July 13, 2016 Share Posted July 13, 2016 My RS has a five speed and that is great for its intended use but I use it for a parade truck and need something with a double reduction . I have to use the clutch way to much during parades and I notice the nine speed in my truck at work has a double reduction and that would be perfect. I was offered a six speed but know nothing about them and don't know if it would be any better than what I have now. Quote Link to comment https://www.bigmacktrucks.com/topic/46045-looking-for-a-different-transmission/ Share on other sites More sharing options...
terry Posted July 14, 2016 Share Posted July 14, 2016 Check out the low ratios on your nine speed and compare to the six speed, the six speed is the same as your five speed with a low range. Also some six speeds have a even lower low range ratio. terry Quote Link to comment https://www.bigmacktrucks.com/topic/46045-looking-for-a-different-transmission/#findComment-339286 Share on other sites More sharing options...
ranchhopper Posted July 14, 2016 Author Share Posted July 14, 2016 Ok I will check them I do need something lower than I have now though. Quote Link to comment https://www.bigmacktrucks.com/topic/46045-looking-for-a-different-transmission/#findComment-339287 Share on other sites More sharing options...
jkruss82 Posted July 14, 2016 Share Posted July 14, 2016 If the offered 6 speed is a T2060 then it has an air shifted hole gear. The ratio is 9.02:1 which is much deeper than your 5-speed with a 5.24:1. To install you will need to cut down a drive shaft because the transmission is about 8 inches longer and you will need a shift knob with toggle switch. If the 6 speed is a T306G, it will have a 1st gear ratio of 7.5:1. It would fit the same as your 5-speed and should be a simple swap out. Quote Link to comment https://www.bigmacktrucks.com/topic/46045-looking-for-a-different-transmission/#findComment-339356 Share on other sites More sharing options...
terry Posted July 14, 2016 Share Posted July 14, 2016 I wasn't sure but I thought he was talking about the old 107 series six speed. Quote Link to comment https://www.bigmacktrucks.com/topic/46045-looking-for-a-different-transmission/#findComment-339371 Share on other sites More sharing options...
j hancock Posted July 15, 2016 Share Posted July 15, 2016 TRXL107 6 speed has a low first gear ratio of 14.10 and the high side is the same as your existing 5 speed. TRX107A is air shift version. TRXL1071 has a super low 23.08 ratio. TRXL1071A air shift. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/46045-looking-for-a-different-transmission/#findComment-339379 Share on other sites More sharing options...
ranchhopper Posted July 15, 2016 Author Share Posted July 15, 2016 The trans I'm looking at came out of an 83 R model. Quote Link to comment https://www.bigmacktrucks.com/topic/46045-looking-for-a-different-transmission/#findComment-339380 Share on other sites More sharing options...
j hancock Posted July 15, 2016 Share Posted July 15, 2016 The X107 and X1071 were available in the 80's. The trans case will be stamped on the driver's side about the middle. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/46045-looking-for-a-different-transmission/#findComment-339381 Share on other sites More sharing options...
ranchhopper Posted July 17, 2016 Author Share Posted July 17, 2016 Looks like I'm going to buy the transmission from this guy he wants 300 for it came out of a 75 R model he says its in good useable condition I'm going to pick it up next week is 300 dollars a good price for a six speed? I still dot know what model trans it is he says I may still have to shorten the drive shaft due to the longer cone on the back for the output shaft. Quote Link to comment https://www.bigmacktrucks.com/topic/46045-looking-for-a-different-transmission/#findComment-339540 Share on other sites More sharing options...
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