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Old 04-15-2018, 08:15 AM   #6
epfatboy
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Join Date: Mar 2018
Location: Barrington nh
Posts: 101
Re: 12 bolt truck rear.

Quote:
Originally Posted by sweetk30 View Post
@ 70 mph = 2294 rpm 3.73 gear.

@ 70 mph = 2104 rpm 3.42 gear.

reason is most likely some motor combos pull better with a bit of a drag load on the system . my 1 atv if i swap in a smaller engine sprocket the motor just winds up . if i go 1 tooth up in sprocket size on the engine she PULLS like a freight train

Right and with an FI motor that is what I’m worried about. Just posted a question in the LS FI forum to see what I get.

Is there a decent site where I can get GM gears for this rear? Not a fan of Richmond for DD’s they can make noise
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