tire size DODGE RAM 4500 CHASSIS CAB 2009 4.G User Guide

•On 4X2 vehicles, class “U” snow chains are permitted
on the rear wheels only of vehicles equipped with
LT245/70R17, LT265/70R17, and LT235/80R17 size
tires.
•On 4X4 Single Rear Wheel (SRW) vehicles, class “U”
snow chains are permitted on the rear wheels only on
vehicles equipped with LT265/70R17.
CAUTION!
Do not use tire chains on the 4X2 front wheels of
SRW (Single Rear Wheels) equipped with LT245/
70R17, LT265/70R17 tires or 4X4 front tires of vehicles
equipped with LT265/70R17tires. There may not be
adequate clearance for the chains and you are risking
structural or body damage to your vehicle.
SNOW TIRES
Snow tires should be of the same size and type construc-
tion as the front tires. Consult the manufacturer of the
snow tire to determine any maximum vehicle speed
requirement associated with the tire. These tires should
always be operated at the vehicle maximum capacity
inflation pressures under any load condition.
While studded tires improve performance on ice, skid
and traction capability on wet or dry surfaces may be
poorer than that of non-studded tires. Some states pro-
hibit studded tires; therefore, local laws should be
checked before using these tire types.
278 STARTING AND OPERATING

Tire Size
The tire size on the Label represents the actual tire size on
your vehicle. Replacement tires must be equal to the load
capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
values are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
Loading
The actual total weight and the weight of the front and
rear of your vehicle at the ground can best be determined
by weighing it when it is loaded and ready for operation.
The entire vehicle should first be weighed on a commer-
cial scale to insure that the GVWR has not been exceeded.
The weight on the front and rear of the vehicle should
then be determined separately to be sure that the load is
properly distributed over front and rear axle. Weighing
the vehicle may show that the GAWR of either the front
or rear axles has been exceeded but the total load is
within the specified GVWR. If so, weight must be shifted
from front to rear or rear to front as appropriate until the
specified weight limitations are met. Store the heavier
items down low and be sure that the weight is distributed
equally. Stow all loose items securely before driving.
288 STARTING AND OPERATING

To Stow The Flat Or Spare — If Equipped
Refer to Upfitters Body Builders Guide for information
on stowing your spare tire (if equipped).
HOISTING
A conventional floor jack may be used at the jacking
locations. Refer to the graphics that show jacking loca-
tions. However, a floor jack or frame hoist must never be
used on any other parts or the underbody.
CAUTION!
Never use a floor jack directly under the differential
housing of a loaded truck or damage to your vehicle
may result.
JUMP STARTING
WARNING!
•To prevent personal injury or damage to clothing,
do not allow battery fluid to contact eyes, skin or
fabrics. Do not lean over a battery when connect-
ing jumper cables or allow cable clamps to touch
each other. Keep open flames or sparks away from
battery vent holes. Always wear eye protection
when working with batteries.
•Do not use a booster battery or any other booster
source that has a greater than 12-Volt system, i.e.,
do not use a 24-Volt power source.
NOTE: Replacement batteries should both be of equal
size to prevent damage to the vehicle’s charging system.
326 WHAT TO DO IN EMERGENCIES

Tether Anchor, Child Restraint.............64,67
Tilt Steering Column ..................... 130
Tip Start .............................. 222
Tire and Loading Information Placard ......262,276
Tire Identification Number (TIN) ............. 261
Tire Markings .......................... 258
Tire Safety Information .................... 258
Tires ............................ 75,266,406
Aging (Life of Tires) .................... 274
Air Pressure .......................... 266
Chains .............................. 276
Dual ............................ 280,322
General Information .................... 266
High Speed .......................... 271
Inflation Pressures ..................... 267
Life of Tires .......................... 274
Load Capacity ........................ 262
Quality Grading ....................... 406
Radial .............................. 272 Replacement
......................... 274
Rotation ............................ 279
Safety ........................... 258,266
Sizes ............................... 259
Snow Tires ........................... 278
Spinning ............................ 273
Steel Carcass Ply ...................... 269
Tread Wear Indicators ................... 273
Wheel Nut Torque ..................... 320
Tongue Weight/Trailer Weight .............. 294
Torque Converter Clutch .................. 229
Tow Hooks, Emergency ................... 330
Towing ............................... 289
24-Hour Towing Assistance ............... 100
Disabled Vehicle ....................... 331
Guide .............................. 293
Recreational .......................... 304
Weight .............................. 293
Towing Assistance ....................... 100
INDEX 423
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