Application
Pro Mod Vehicles
Using 16″, 17″, 18″, 19″, 20″, 21″, 22″, or 23″ 4-link centers
Description
Ultra 4-Link Modular Floater Housing Assembly
Includes Pro Carbon brake kit
Choice of 4 3/4″, 5″, or 5 1/2″ bolt circle
Note
4-Link Plates, Axles, & Center Section Sold Separately
Available Wheel to Wheel Widths
16″ 4-Link Centers
31.750″ / 33.250″ / 33.750″ / 41.00 *
17″ 4-Link Centers
32.750″ / 34.250″ / 34.750″ / 42.00 *
18″ 4-Link Centers
33.750″ / 35.250″ / 35.750″ / 43.00 *
19″ 4-Link Centers
34.750″ / 36.250″ / 36.750″ / 44.00 *
20″ 4-Link Centers
35.750″ / 37.250″ / 37.750″ / 45.00 *
21″ 4-Link Centers
36.750″ / 38.250″ / 38.750″ / 46.00 *
22″ 4-Link Centers
37.750″ / 39.250″ / 39.750″ / 47.00 *
23″ 4-Link Centers
38.750″ / 40.250″ / 40.750″ / 48.00 *
* 4 3/4″ & 5″ Bolt Circles Only
Call For Other Possibilities
Benefits
Safety
• Housing supports weight, bending loads, and tire shake
• Axle shafts only requirement is to transfer torque
• Prevents the possibility of axle flange breakage
Strength
• Extremely rigid assembly increases gear life
Weight
• Lighter than comparable fabricated steel housings
Features
Housing
• 206-T4 cast aluminum
• Hot Isostatic Pressed to ensure casting integrity
• Black Enduraguard® finish
• Large fill cap allows for gear inspection
• Finger grips and hex facilitate cap removal
• Magnetic drain plug
• Lug design prevents plate & tube rotation
• Integral upper wheelie bar mounts
• Designed & machined by Strange
• Material made in USA
Four Link Spacer Plates
• 6061-T6511 billet aluminum
• Pockets engage housing lugs
• Lightened for weight reduction
• O-rings ensure sealing integrity
• Black anodized
Bottom Four Link Brace
• 6061-T6511 billet aluminum
• Eliminates lower 4 link plate welding
• Lightened for weight reduction
• Black anodized finish
Next Generation Floater Spindles
• 4130 chrome moly
• Increased wall thickness
• Machined with large inner bearing radius
• Vastly increases bending load strength
• Prevents spindle elongation
• Press fit into housing tubes
• Inner end secured by internal locking nut
Housing Tube Ends
• 6061-T651 billet aluminum
• Internal pockets engage housing lugs
• Prevents tube rotation
• Black anodized finish
Solid Preload Spacer
• Stainless steel
• Machined to precise width
• Prevents excessive bearing preload
Spindle Lock System
• Billet heat treated spindle nuts
• Threaded & non-threaded holes
• Dog pilot set screws engage washer
• Washer indexes on spindle keyway
• Maintains consistent bearing preload
Timken® Bearings & Races
• Oversized to increase load capacity
• Ensures long bearing life
• Proven quality from a trusted manufacturer
Wheel Hub
• 2024-T351 billet aluminum
• Scalloped with integral rotor mount
• Reduces weight and additional parts
• Lug design allows rotor to float
• Same hub as used for steel brakes
• Simplifies later brake conversions
Press-in Wheel Studs
• 8740 chrome moly steel
• Anti-rotational head design
• 5/8″-18 available in two lengths
• Aluminum anti-marring washers
• Flanged steel lug nuts
Drive Plates
• 8620 chrome moly steel
• 40 spline with 45° pressure angle
• Scalloped to remove unnecessary weight
Carbon Brake Kit
• 11″ OD carbon rotor – C1790
• Internal lugs mate with aluminum hubs
• Floating design allows for thermal expansion
• Billet aluminum four piston calipers – B5040
• Carbon brake pads – L4050H
• Aluminum caliper mounts
Options
Supply 4-Link Plates
Standard………………………….. OPRH40
Heavy duty……………………….. OPRH44
HD w/adj shock mnts……………. OPRH45 *
* Allows Ride Height Adjustments Without Affecting Stroke
Related Components
Floater Axles
Hy-Tuf…………………… A2040H24 / A2140H24
300M…………………….. A2040M24 / A2140M24
Center Section
Ultra case…………………. PRF225 / PRF225-10
Billet case…………………. PRF425 / PRF425-10
