Dual Rear Wheel Mounting Instructions & Fitment Check

 


 

Hub Piloted Wheel (DRW) Fitment Check Instructions

 

Alcoa 16x6 and 16x6.5 aluminum wheels must be dualed with an innter steel wheel. See HUBS and STUD STANDOUT below.

 

WHEEL FITMENT CHECK
Before mounting tires, perform a wheel fitment check in the following manner:
1. Remove one front wheel.
2. Clean the mounting surface of the hub with a wire brush and remove any retainer (spring) clips.
3. Hold the wheel on the hub and check for a flush mount. The mounting surface of the wheel must fit flush to the hub mounting surface. The backside of the wheel must not rest against any obstructions, such as the brake caliper, suspension components, balance weights, rivets, etc.
4. Install three lug nuts and hand tighten. Rotate the wheel and turn the steering column fully in both directions to ensure clearance from any obstructions.
5. Perform the above steps on the rear of the vehicle.

 

NOTE
Do not
exceed maximum wheel load. Fitment recommendations are for reference only. Customer must compare OEM vehicle load rating to maximum wheel load rating. Refer to tire manufacturer's recommendation for proper tire pressure. Before mounting the tire, perform a wheel fitment check to ensure proper clearance from any obstructions.

 

BRAKE ASSEMBLY
Wheels are compatible with most disc brakes or inboard & outboard mounted brake drums specified by the vehicle manufacturer.

 

NOTE
Be sure brake drum or caliper does not contact inner surface of the wheel except in mounting area. When using outboard mounted drums, be sure the surface that contacts the wheel is flat and true and provides contact with the wheel at least to 8.250" diameter.

 

NOTE
MINIMUM BRAKE DRUM FLATNESS: When using outboard mounted drums with HUB PILOTED 19.5x6 wheels, be sure the surface that contacts the wheel is flat and true and provides contact with the wheel to at least 10.750" diameter.

 

HUBS
Ferrous or aluminum hub piloted type only and 8-stud with 6.500" bolt circle or 10-stud with 7.250" bolt circle.

 

NOTE
Specify only hubs that are designed for aluminum hub piloted wheels. Hubs designed for steel hub-piloted wheels do not have sufficient pilot length to locate dualed aluminum wheels. Because of the pilot length, Alcoa 16x6 and 16x6.5 aluminum wheels must be dualed with an inner steel wheel. Stud lengths must also be sufficient to clamp aluminum wheels. Before mounting hub-piloted wheels, generously coat the wheel pilot or hub pads with a non-water-based lubricant, such as Freylube or equivalent, to minimize corrosion build up. DO NOT LUBRICATE THE FACE OF THE WHEEL OR THE HUB.

 


STUD STANDOUT
Stud standout is the length of the stud from the wheel-seating surface (hub or brake drum) that penetrates the wheel and engages the cap nut. Single hub piloted wheels have a minimum stud standout of 38mm (1.5-inches). Dualed hub piloted wheels have a minimum stud standout of 45mm (1.77-inches). DO NOT dual two Alcoa aluminum wheels using stock length studs and hub pilots. An inner steel and an outer aluminum wheel are required for these applications when using stock studs and hub pilots.

 


Use of a wheel clamping plate and matching lugs with dualed Alcoa wheel assemblies can cause insufficient thread engagement of the lug nuts on studs.

 

This condition can cause wheels to loosen and disengage from the vehicle, causing injury or death.

 

Never use a wheel clamping plate and matching lugs with dualed Alcoa wheel assemblies. Use only recommended hardware on Alcoa aluminum wheels.

 

 

Use of cap nuts that have chrome plating on the contact surfaces can cause reduced and inconsistent wheel clamping.

 

This condition can cause wheels to loosen and disengage from the vehicle, causing injury or death.

 

Never use cap nuts with chrome-plated contact surfaces. Use only recommended hardware on Alcoa aluminum wheels.

 

 


 

Hub Piloted Wheel (DRW) Mounting Instructions

 

Alcoa 16x6 and 16x6.5 aluminum wheels must be dualed with an inner steel wheel, see WHEEL FITMENT CHECK for details.

 

MOUNTING INSTRUCTIONS 
1. Front – Position Alcoa wheel on hub.
Rear* – Position rear inner steel first and then the Alcoa aluminum outer wheel.
*16x8 and 17x8 hub piloted single wheels are not dualable. These wheels mount the same in the rear position as the front position.
2. Install four Alcoa cap nuts on bottom studs, hand tighten (do not use chrome-plated  cap nuts).
3. Position front or rear axle cover against the face of the wheel, letting the edge of the cover rest between the wheel and the chamfered edge of the washer (do not attempt to push the cover through the rear of the wheel).
4. Install the balance of cap nuts.
5. Follow the torque sequence as shown.


6. Install cap nut covers (Alcoa P/N 000190) by pushing onto individual cap nuts.

 

NOTE
Do not exceed maximum wheel load. Fitment recommendations are for reference only. Customer must compare OEM vehicle load rating to maximum wheel load rating. Refer to tire manufacturer's recommendation for proper tire pressure. Before mounting the tire, perform a wheel fitment check to ensure proper clearance from any obstructions.

 

NOTE
Do not use cap nuts intended for stud located (cone seat or ball seat) wheels on hub piloted wheels.

 

NOTE
Alcoa axle covers for 16x6 and 16x6.5 dualie wheels can only be used with Alcoa lug nuts (P/N 139987 and P/N 139698). These are not push-through axle covers. Do not use OEM cap nuts with Alcoa axle covers.

 


Use of a wheel clamping plate and matching lugs with dualed Alcoa wheel assemblies can cause insufficient thread engagement of the lug nuts on studs.

 

This condition can cause wheels to loosen and disengage from the vehicle, causing injury or death.

 

Never use a wheel clamping plate and matching lugs with dualed Alcoa wheel assemblies. Use only recommended hardware on Alcoa aluminum wheels.

 

 

Use of cap nuts that have chrome plating on the contact surfaces can cause reduced and inconsistent wheel clamping.

 

This condition can cause wheels to loosen and disengage from the vehicle, causing injury or death.

 

Never use cap nuts with chrome-plated contact surfaces. Use only recommended hardware on Alcoa aluminum wheels.