0-140 stock 6.2 3.73s
Jan 8, 2015 | 08:49 PM
#31
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Joined: Jan 2015
Posts: 1
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3.73
Dude.. Your dealer lied to you. I just bought Sept 2014 a GMC 6.2 Sierra crew cab 4x4 six speed with 3.73 gears form the factory. I have American racing headers with 3.5 inch corsa exhaust with a K&N air filter and a tune from Dyno Tune Motor Sports in Columbus Ohio. Truck made 383.2Rwhp 425 ft-lb on 89 octane. I will burn the tires all the way through first and second gear and a quarter of the way through 3rd. It will smoke the tires at 40mph roll on also.
Jan 8, 2015 | 11:19 PM
#33
015 8spd 6.2 3.08 or 3.23 and someday they will take off constraint and start building the 3.42NHT max tow
Jan 8, 2015 | 11:32 PM
#34
Dude.. Your dealer lied to you. I just bought Sept 2014 a GMC 6.2 Sierra crew cab 4x4 six speed with 3.73 gears form the factory. I have American racing headers with 3.5 inch corsa exhaust with a K&N air filter and a tune from Dyno Tune Motor Sports in Columbus Ohio. Truck made 383.2Rwhp 425 ft-lb on 89 octane. I will burn the tires all the way through first and second gear and a quarter of the way through 3rd. It will smoke the tires at 40mph roll on also.
Feb 12, 2015 | 01:05 AM
#35
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On The Tree
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Joined: Jan 2004
Posts: 171
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From: Bama home of champions
shift speeds
just watchn my logs they are as follows with 22s and stock tire size
1-2 6400 rpms 41mph
2-3 6300 rpms 65mph
3-4 6300 rpms 102mph
pretty sure these are within 1mph
1-2 6400 rpms 41mph
2-3 6300 rpms 65mph
3-4 6300 rpms 102mph
pretty sure these are within 1mph
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