Which Differential for Truck Camper
Looking to purchase a new 3500 Single rear wheel crew cab 4x4 standard bed truck and haul a Lance 855S (about 3,000 lbs) camper. Plan to get the 6.0L gas engine which comes with a 6 speed auto trans. ...
Forum Discussion
Tire size has to be taken into consideration.
Comparing my previous 2008 silverado to my new 3500 silverado both with 6.0 liter this is what I get/got.
these 2 configurations perform great, no complaints
2008 2500 silverado with 3:73 and 245 75 r16 tires 1975 rpm @ 70 mph
2014 3500 silverado with 4:10 and 265 70 r18 tires 2050 rpm @70 mph
When I ran my 2008 2500 silverado with over sized tires listed below the power band was way off on inclines it needed to down shift so low the motor was screaming at expressway speeds, I did not like it.
2008 2500 silverado with 3:73 and 285 75 r16 tires 1750 rpm @ 70 mph
(my only complaint with this confiruration was inclines at expressway speed)
when you compare the tire diameter of 265 70 r18 and 285 75 r16 it is within one quarter inch.
So my conclusion is your tire diameter should dictate your gear size, I would not run a 3:73 with 18" wheels and and I would have to think long and hard weather I would run a 3:73 with 17" wheels.
Comparing my previous 2008 silverado to my new 3500 silverado both with 6.0 liter this is what I get/got.
these 2 configurations perform great, no complaints
2008 2500 silverado with 3:73 and 245 75 r16 tires 1975 rpm @ 70 mph
2014 3500 silverado with 4:10 and 265 70 r18 tires 2050 rpm @70 mph
When I ran my 2008 2500 silverado with over sized tires listed below the power band was way off on inclines it needed to down shift so low the motor was screaming at expressway speeds, I did not like it.
2008 2500 silverado with 3:73 and 285 75 r16 tires 1750 rpm @ 70 mph
(my only complaint with this confiruration was inclines at expressway speed)
when you compare the tire diameter of 265 70 r18 and 285 75 r16 it is within one quarter inch.
So my conclusion is your tire diameter should dictate your gear size, I would not run a 3:73 with 18" wheels and and I would have to think long and hard weather I would run a 3:73 with 17" wheels.
