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Old 11-24-2009, 10:39 PM
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They have the same bolt circle (5X5.5'' - 5X139.7mm) but the offset is a bit different.

Here's some wheel specs for ya just for future reference:

1994-1999 1500 2WD/4WD Aluminum Wheels
• Lug Pattern - 5 on 5.5", 1/2" bolt
• Rim Size - 16x7.0"
• Offset - +13.97mm
• Backspace - 5"
• Max Tire Size -
• 15x8.0 rims with 3.5" backspace will fit, but they stick out of the wheel wells.
Torque Spec
• 80-110 ft lbs (108-150 Nm) on 5 stud wheels
2000-2003 1500 2WD/4WD 17" Steel Wheels (Chrome or painted)
• Lug Pattern: 5 on 5 1/2
• Rim Size: 17x7"
• Fits 94 and up 1500 trucks
2000-2003 1500 2WD/4WD 17" Aluminum Wheels:
• Lug Pattern: 5 on 5 1/2
• Weight: 23.5 pounds
• Rim Size: 17x8"
• Actual width edge to edge: 9 1/16"
• Backspacing: 5 9/16".
• The space from the outside edge to the mounting surface (against the rotor) is 3 1/2".
• offset calculate: 1 1/32"
• Fits 94 and up 1500 trucks


Here's a bit of info on Offset

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:

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 typically have negative offset or a very low positive offset.

Calculating the Offset of a Wheel

Calculating the offset of a wheel is a fairly easy mathematical equation. First, measure the overall width of the wheel (remember, just because a wheel is 18x7.5, does not mean that the OVERALL width is 7.5”. It means that the measurement from outboard flange to the inboard flange is 7.5”). Next, divide that width of the wheel by two; this will give you the centerline of the wheel.

Overall width/2 = Centerline

After determining the centerline, measure from the mounting pad to the edge of the inboard flange (if the wheel were laying flat on the ground – face up – your measurement would be from the ground to the mounting pad). This is your back spacing.

Centerline – Back Spacing = Offset in Inches

Inches x 25.4 = Offset in mm

All of the wheels in the American Racing catalog indicate the wheel’s offset.

Determining the Right Offset for Your Car

Short of adding fender flares or a body kit to your car or rolling and pulling your fenderwells, there is no way to significantly change your car’s offset. If your car has a high offset, you will have to buy a high offset aftermarket wheel. If you car has a low offset, you will need a low offset aftermarket wheel. Typically, front wheel drive vehicles have a high offset (+35 mm or greater), and rear-wheel drive applications will have lower offsets (this is not true in all cases, as the Honda S2000 is rear wheel drive, and has a very high offset). Your installer or tire and wheel dealer should be able to tell you what the offset of your vehicle is.

The common definitions are:

Low – 0-15 mm

Mid – 16-34 mm

High – 35-40 mm

High + - 41+ mm

Other factors in determining what offset is right for your vehicle is whether not you are making any other changes to your car (lowering or raising, aftermarket brakes, etc.).

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.
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