PRO Comp 2011 - 2019 GM 2500HD Box Kit # 51802B-2

Pro Comp Suspension Box Kit # 51802B-2. This is Box 2 of a larger suspension lift system. Please note that this is not a complete lift kit. This individual box kit includes the driver and passenger side knuckles. We also call these parts steering uprights or spindles.

If your 2500HD / 3500 has been involved in an accident and you need replacement parts this is normally the best way to purchase them. Trying to buy one individual spindle (one side) is no longer possible as PRO Comp ceased normal operations in June of 2022. The cost of this box kit with BOTH the driver and passenger side knuckles is less expensive than one individual knuckle. The major benefit of purchasing this box kit is the amount of time you save... Box Kit # 51802B-2 is ready to ship out within 1 business day of receiving your order.

Procomp BOX Kit # 51802B-2 Contents:

1 x 90-4328 = DRIVER KNUCKLE
1 x 90-4329 = PASSENGER KNUCKLE
1 x 90-6782 = HARDWARE PACK
1 x 90-7089 = SPARE TIRE WHEEL SPACER

For more information on this or any other Explorer Procomp product, please click on the Ask a Question link located at the very top of this page.

This item weighs 87 lbs. Ground shipping to any address in the contiguous 48 USA is FREE and usually only requires 2-3 business days for delivery. Faster shipping is available but it will be VERY EXPENSIVE because of the size and weight of the box! Please call us for a custom freight quote if you need a faster delivery method.