500-550 towing hp

A phat shaft is a 62/71 right? For some reason im thinkin it is a 74 wheel
 
Hell, I think. I'm not sure. I always see these things with three number xx/xx/xx but I only know two of them. :hehe: Maybe I'll learn something on here one of these days. :D I'd love to trade my PS for a SPS. A little more air wouldn't hurt.
 
Hell, I think. I'm not sure. I always see these things with three number xx/xx/xx but I only know two of them. :hehe: Maybe I'll learn something on here one of these days. :D I'd love to trade my PS for a SPS. A little more air wouldn't hurt.

Most people dont want to trade down.

I just did a turbine wheel upgrade, and had Engineered Diesel do it because the beat HTT and II hands down on the price.
 
Ya. The trade down thing doesn't look promising. :D Thanks for posting the numbers. Now maybe I can memorize them. So the 71 is the exhaust turbine size right? Does it require a housing change or mod or is it as easy as buyin' a new wheel and installing it (with someone of knowledge doing it)?
 
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