ReadyLIFT SST Lift Kits - MAKE : DODGE
MODEL YEAR 2WD / 4WD MAX LIFT DIA. (max) TIRES (max) WIDTH B/S PART
RAM 1500 2009-UP 4WD ONLY 2.5"F-1.5"R 35" 35" x 12.5" 9" 5" 69-1030
RAM 1500 2009-2011 2WD ONLY 2.25"F-1.5"R 35" 35" x 11.5" 9" 5" 69-1035
RAM 2500/3500 NON-RADIUS ARM SUSP 2003-2012 4WD ONLY 3.0"F-1.0"R 35" 35" x 12.5" 9" 5" 69-1091
RAM 2500/3500 NON-RADIUS ARM SUSP 2003-2012 4WD ONLY 3.0"F-2.0"R 35" 35" x 12.5" 9" 5" 69-1092
RAM 2500 WITH RADIUS ARMS  2014-UP 4WD ONLY 3.0"F-1.0"R 35" 35" x 12.5" 9" 5" 69-1231
RAM 2500 DIESEL WITH RADIUS ARMS  2014-UP 4WD ONLY 4.5"F-1.5"R 37" 37"X 12.5" 9" 5" 69-1241
RAM 2500 DIESEL WITH RADIUS ARMS  2014-UP 4WD ONLY 4.5"F-2.5"R 37" 37"X 12.5" 9" 5" 69-1242
RAM 3500 WITH RADIUS ARMS 2013-UP 4WD ONLY 3.0"F-1.0"R 35" 35" x 12.5" 9" 5" 69-1331
RAM 3500 DIESEL WITH RADIUS ARMS 2013-UP 4WD ONLY 4.5"F-1.0"R 37" 37"X 12.5" 9" 5" 69-1341
RAM 3500 DIESEL WITH RADIUS ARMS 2013-UP 4WD ONLY 4.5"F-2.0"R 37" 37"X 12.5" 9" 5" 69-1342
                 
ReadyLIFT Leveling Kits - MAKE : DODGE
MODEL YEAR 2WD / 4WD MAX LIFT DIA. (max) TIRES (max) WIDTH B/S PART
RAM 1500 2002-2005 4WD ONLY 2.0" 35" 35" x 12.5" 9" 5.5" 66-1000
RAM 1500 2006-2011 4WD ONLY 2.5" 35" 35" x 11.5" 9" 5.5" 66-1020
RAM 1500 2006-UP 4WD ONLY 2.0" 35" 35" x 11.5" 9" 5.5" T6-1030
RAM 1500 2009-UP 4WD ONLY 2.0" 35" 35" x 11.5" 9" 5.5" 66-1030
RAM 1500 2012-2014 2WD ONLY 1.75" 33" 33" x 12.5" 9" 5.5" 66-1033
RAM 1500 2009-2011 2WD ONLY 1.75" 33" 33" x 12.5" 9" 5.5" 66-1035
RAM 1500 2006-2008 2WD ONLY 2.25" 35" 35" x 12.5" 9" 5.5" 66-1055
DAKOTA 2005-2010 2WD ONLY 2.0" 32" 32" x 10.5" 8" 5" 66-1070
DURANGO / CHRY ASPEN  2004-2010 2WD & 4WD 2.25" 33" 33" x 12.5" 9" 4.75" 66-1080
RAM 1500 1994-2001 4WD Only 2.0" 35" 35" x 12.5" 9" 5.5" T6-1090
RAM 2500/3500 1994-UP 4WD 8 LUG 2.0" 35" 35" x 12.5" 9" 5.5" T6-1090
RAM MEGA CAB - All 4WD 2006-UP 4WD 8 LUG 2.0" 35" 35" x 12.5" 9" 5.5" T6-1090
RAM 1500 1994-2001 4WD Only 2.0" 35" 35" x 12.5" 9" 5.5" 66-1090
RAM 2500/3500 1994-UP 4WD 8 LUG 2.0" 35" 35" x 12.5" 9" 5.5" 66-1090
RAM MEGA CAB - All 4WD 2006-UP 4WD 8 LUG 2.0" 35" 35" x 12.5" 9" 5.5" 66-1090
RAM 2500/3500 - RADIUS ARM SUSP 2013-2014 4WD 8 LUG 1.75" 35" 35" x 12.5" 9" 5.5" 66-1113
                 
ReadyLIFT Off Road Series Lift Kits - MAKE : DODGE
MODEL YEAR 2WD / 4WD MAX LIFT DIA. (max) TIRES (max) WIDTH B/S PART
RAM 2500/3500 2009-2012 4WD ONLY 5.0"F-2.0"R 37"* 37" x 12.5" 9" 5" 49-1000
* - Max tire size on factory wheel. Inside edge of tire will rub on radius arm at full turn. ** - Max tire size on factory wheel. ***-May require some minor trimming of inner fender well.
#-Amount of lift is determined by coil over which is sold separately
THIS TIRE FITMENT GUIDE IS TO BE USED AS A RECOMMENDATION ONLY, IT IS THE CONSUMER'S RESPONSIBILITY TO TEST FIT BEFORE PURCHASING WHEELS AND TIRES. 
READYLIFT SUSPENSION, INC WILL NOT BE HELD LIABLE FOR ANY COST OF WHEELS AND TIRES.

Offset - Backspacing

The offset of a wheel is the distance from its hub mounting surface to the centerline of the wheel. The offset can be one of three types (measured in millimeters).* Wheel backspacing is the distance from the hub mounting surface to the inside wheel lip (back side of the wheel) and is usually measured in inches. When chosing wheels it is important to pay attention to the backspacing. A common "offset" for example is +12mm or -12mm. In this example a +12mm wheel would be a positive offset wheel and a -12mm wheel would be a negative offset wheel. In this case "0" is the centerline of the wheel which means a +12mm offset is a wheel with a hub mounting surface 12mm (roughly just over half and inch) further outwards toward the front of the wheel. Think front wheel drive car wheels for reference. A wheel with a -12mm offset would have a hub mounting surface 12mm inside of the wheel centerline, or closer to the back side of the wheel lip. This type of wheel usually has a "deep" look as compared to a zero or positive offset wheel.

Most all factory truck wheels are positive offset to one degree or another.

Installing a wheel with less rear of wheel backspacing than the factory wheel results in the wheel sticking out further than the stock wheel did.

wheel offset, wheel backspacing, wheel size
ReadyLIFT Wheel Offset conversion chart

Zero Offset

The hub mounting surface is even with the centerline of the wheel.

Positive

The hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front wheel drive cars and newer rear drive cars.

Negative

The hub mounting surface is toward the back or brake side of the wheels centerline. "Deep dish" wheels are typically a negative offset.

If the offset of the wheel is not correct for the car, the handling can be adversely affected. When the width of the wheel changes, the offset also changes numerically. If the offset were to stay the same while you added width, the additional width would be split evenly between the inside and outside. For most cars, this won't work correctly. We have test fitted thousands of different vehicles for proper fitment. Our extensive database allows our sales staff to offer you the perfect fit for your vehicle.

*Backspacing, similar to offset, is the distance from the hub mounting surface to the inside lip of the wheel (measured in inches).


TIRE SIZE CALCULATOR

How it Works
1. Input OEM tire size, aspect ratio and rim diameter in original size.
2. Add custom tire size, aspect ratio and rim diameter in custom size--change the numbers shown in order to calculate tire sizing.

  SECTION WIDTH ASPECT RATIO RIM DIAMETER OVERALL DIAMETER SECTION WIDTH REV PER MILE SPEEDO ERROR MPH
ORIGINAL SIZE
CUSTOM SIZE
IMPORTANT NOTE! Remember, aftermarket sizing is not standardized. Contact a tire professional before your purchase.


ReadyLift® - Tech Information