I have a 2013 Pete 388, 70" standup sleeper with 268" WB . It has 550 hp, 1850 torque , 18 speed Eaton with 3.42 rears . Truck is dbl framed back half of truck , holland fw35 5th wheel, air trac suspension , 46k drives on 11R24.5 rubber . It has a Muncie dual line wet kit, with a rgn jack plate on rear of frame for detaching hydraulic neck . Do yall think the 3.42 rears will pull a 6 or 8 % grade . Or should I swap for 3.90 rears .
I would like to pull the load not creep down the road
3:42 rears
Discussion in 'Heavy Haul Trucking Forum' started by Hotshot2trucker, Aug 9, 2020.
Page 1 of 6
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
You should be ok for 6 axle loads as you are as long as you stay close to pavement.
I would not try much over 105k with those gears in dirt or over 7% grades as you will find the weakest link in your drivetrain sooner than later.black_dog106, TripleSix, Caterpillar Cowboy and 1 other person Thank this. -
So , should I change my gears to 3.90 gears -
Last edited: Aug 9, 2020
-
Lower gears likely won't get you up the hill any faster. Instead of dropping 2 gears to make it up a hill with 3.90s you might have to drop 3 to get the same torque to the ground with 3.42s. Lower ratio in the rears primarily helps get things rolling easier.
Last edited: Aug 9, 2020
Dave_in_AZ, Bean Jr., w9l and 3 others Thank this. -
-
-
-
Crude Truckin', magoo68 and truckdad Thank this.
-
I’d put 22.5 rubber on it before changing the rear gears....
Brettj3876, OLDSKOOLERnWV, shawnhhllc and 3 others Thank this.
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 1 of 6