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-   -   Running 40s, help? (http://www.jeepgarage.org/f75/running-40s-help-73444.html)

caterpillar 03-30-2014 02:48 PM

Running 40s, help?
 
I'd like to run 40s on my 2000 TJ sport (I know I need new gears and drive shafts) but, does anyone know what size lift I would need? I'm looking at a 6" with Metal Cloak fenders, but I'd like help so I don't mess up, and also, any suggestions on gear sizes? Thanks

Kjens2004 03-31-2014 12:13 PM

If you do a Google search a chart with suggested gearing based on tire size figuring a 1:1 transmission gear (in my cj it was fourth) at 65 mph and in autos it tells u a basic calculation to get close.
That's how I picked the gears I needed. (4.56 with 35's ...for now)
http://www.quadratec.com/jeep_knowle...article-26.htm


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