smimike Posted February 29, 2016 Share Posted February 29, 2016 need to swap trans have2070 with 573rears to weak on the road what would work with 573 rears Quote Link to comment https://www.bigmacktrucks.com/topic/44166-transmisson-swap/ Share on other sites More sharing options...
Vladislav Posted February 29, 2016 Share Posted February 29, 2016 Your T2070 has 0.6 in the top hole. The same is in T2060 and T2080.T2090,2100,2130 and 2180 are slower in OD, only 0.71.T107's are lower again, 0.78 if not direct.So if you want to keep your top speed or RPM's at the same level on the same speed T2060 and 2080 are the way to go.If you'd like multiple speeds you're in the rears swap field.Any tranny you'll put your eye on you should check about a top speed ratio and relate to what you have (0.60).Than make the math. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/44166-transmisson-swap/#findComment-326087 Share on other sites More sharing options...
luke andres Posted May 6, 2016 Share Posted May 6, 2016 I have a 91 dm690 with a 2080 transmission and 573 rears its a tri axle dump I bought 442 rears and a fuller 13 speed rtof12513 that I plan on installing I think it will make a world of difference transmission is within a inch of being same length too Quote Link to comment https://www.bigmacktrucks.com/topic/44166-transmisson-swap/#findComment-332456 Share on other sites More sharing options...
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