Hub Spacer Kit 2WD to 4x4 Adapter Rings
Our CNC-cut powder-coated hub spacer is a key component of GM 4x4 van conversions where the original van knuckles are retained. These adapter rings permit the usage of 4x4 truck hubs on 2WD van knuckles.
The 2WD GM van hub and 4x4 GM truck hub have different offset mounting surfaces for the brake rotor, so if you just install a truck hub on a van, your brake caliper will seat incorrectly and only grab one side of the pad. (If you're even able to install it.)
It's not as simple as just installing a regular Silverado knuckle when completing your 4x4 van conversion because the overall height is shorter on the truck knuckle and the mounting position for the tie-rod does not cooperate well with the steering assembly. Additionally, the location of the upper ball joint hole does not sit in the same location on trucks and vans.
For this reason, our systems are designed to retain the original van knuckle for conventional 4x4 conversions. Our Hi-lift conversion utilizes a taller Silverado knuckle with corrected tie-rod mounts as well as custom upper control arms to correct for caster differences.
(It would be lovely if all things van and truck were interchangeable, but they simply aren't, so we've done the leg work to figure out how to adapt them properly.)
Fitment Designed for:
Van Side - 2003-2023 Chevrolet Express 2500/3500/4500 series vans.
Hub Side - Made for use with 2007.5-2010 Chevrolet Silverado K2500/K3500 Hubs, Moog Part number 515098. Wheel pattern 8x6.5.
Standard hand tools minimum, pneumatic tools, and torque wrench recommended. Threadlocker required.
5/16" CNC cut A36 mild steel, powder-coat
Tips / Skill Level:
1-10 (10 being most difficult) Level 2
This product may work with other model vehicles.
Torque Spec on hub assembly bolts 133ft-lbs, threadlocker advised. Torque spec on large CV retainer nut is 177 ft-lbs.
Shipping, Fulfillment, Taxes, Quality, and Returns
- Shipping: Our components are carefully wrapped & packaged and shipped via UPS, USPS, or FedEx, depending on what is available. If you require a particular carrier, please contact us ahead of your purchase. Customers in Colorado may arrange for in-person pickup within 1-2 business days of purchase.
- Shipping/Fulfillment time for components: We typically ship within 1-2 business days of your order and we carefully monitor our inventory. In the event that we are unable to meet that timeframe, we will contact you and arrange either a full refund or a timeframe for fulfillment agreeable to the customer.
- Taxes: Colorado residents must pay a sales tax of 7.5%, no sales tax is collected on out-of-state shipments currently.
Quality and Returns: We are consistently complimented on the quality of our products and the ease of installation. Fabricated components are generally hand-built here in Colorado by seasoned professionals. Replacement or aftermarket parts are only offered in high-grade options.
If you are in any way disappointed in the components, we will issue a full refund less the cost of shipping when the product is returned within 30 days of receipt. If you decide to return any components that didn't apply to your build or you changed your mind about, a shipping +15 % restocking fee will be deducted from the refund.