Page 684 - 2017 Racecar Engineering Circle Track Parts and Accessories Catalog

2-1/2" GRAND NATIONAL
QUICK CHANGE KITS
Closed tube kits include solid axles, Platinum 5 x 5" 4140 heat treated WINK5063-60-2K-P
steel hubs (WIN2255C-P) and 11.75" dia. x .810" thick rotors. Each 10"
dia., 12-bolt rear has a magnesium center with 6-rib bells (WIN8186P),
Posi-Lock assembly (WIN8104), pinion nose roller bearing (WIN8143),
31-spline aluminum spool (WIN8115) and 4.86 ring and pinion assembly.
For special order options, see the listing below or consult the complete
breakdown of component parts on the following page.
Part No. Description Included Options Axles Housing Width
WINK5063-60C** Steel Tube, Centered Modified Rear, AFCO/Winters WIN8106, WIN8131, WIN8133, WIN8143 30.5"/30.5" 60"
WINK5063-60-2** Steel Tube, 2" Offset Modified Rear WIN8106, WIN8131, WIN8133 32.5"/28.5" 60"
WINK5063-60-2K-P* Steel Tube, 2" Offset Modified Rear WIN8106, WIN8131, WIN8133 32.5"/28.5" 60"
WINK5063-60CK-P* Steel Tube, Centered Modified Rear WIN8106, WIN8131, WIN8133 30.5"/30.5" 60"
WINK5063-62CK-P* Steel Tube, Centered Modified Rear WIN8106, WIN8131, WIN8133 31.5"/31.5" 62"
WINK5063-62-2K-P* Steel Tube, 2" Offset Modified Rear WIN8106, WIN8131, WIN8133 29.5"/33.5" 62"
* Signifies IMCA-legal. ** Assemblies do not include axles.
OPTIONS FOR “SPRINT CENTER” AND GRAND NATIONAL QUICK CHANGE
Part No. Description Part No. Description Part No. Description
WIN8100 Gear Cover With Roller Brgs. WIN8136 4-Rib Lightweight Side Bell WIN8171 Billet Aluminum Locker
WIN8102 Super Gear Cover WIN8136P 4-Rib Lightweight Side Bell With Inspect. Plug WIN8183 “Triple Track” Differential
WIN8104 Posi-Lock Assembly WIN8137 Heavy Duty Gear Cov er WIN8186P 6-Rib Mach. Side Bell With Inspection Plug
WIN8106 Heat-Treated Lower Shaft WIN8138 Alum. Tubes With Steel Spindle WIN8201 Tube Seal
WIN8111 4.11 Ratio Ring and Pinion WIN8139 8-Bolt Spindles WIN8202-XXX EDM Ring and Pinion (XXX-Specify Ratio)
WIN8114 Superlight Steel Spool WIN8140 Alum. Side Tubes WIN8208 Thermal Dispersant Coating
WIN8115 Aluminum Spool WIN8143 Roller Brg. On Pinion Nose WIN8218-RP REM Ring and Pinion
WIN8117 Magnesium Side Bells WIN8151 Steel Swedged Wide 5 Tubes WIN8244C-CT Differential Bearings, Low Drag Ceramic
WIN8130 Ultralight Alu mi num Spool WIN8152 Titanium Lower Shaft WIN8244C-P Pinion Bearings, Low Drag Ceramic
WIN8131 Machined Side Tubes WIN8154 Closed Drive WIN8244S-CT Differential Bearings, Low Drag Steel
WIN8132 Alum. 8-Bolt Side Tubes WIN8155P 8-Rib Side Bell With Inspection Plug WIN8244S-P Pinion Bearings, Low Drag Steel
WIN8133 “Sprint Center” WIN8162 Super Cover With Pump
Note: A complete exploded view and breakdown of all component parts can be seen on the following page.
RING AND PINION ASSEMBLIES
2ND GENERATION SHORT SPRINT CENTER Gear sets fit popular 10" dia., 12-bolt Quick Change rear
QUICK CHANGE WITH 8” RING AND PINION ends. Available withor without bearings.
Part No.
Part No.
WINK5270-LT-S Ratio Without Bearings With Bearings
2nd Generation Quick Change is fitted 4.12 WIN5714 WIN5715*
with a new 8” diameter ring gear that 4.86 WIN5400 WIN5401*
is 20% smaller and 20% lighter * Pinion bearing pre-load is not set.
than traditional 10" gears, providing
significant reductions in rotating EXTRA HEAVY DUTY 4.86
and unsprung weight for improved
acceleration and deceleration. RING AND PINION ASSEMBLY WIN56486
Special, short design also provides Assembly incorporates a heavy duty,
1-1/2" more fuel cell clearance. flanged pinion bearing that offers improved
Shown With Optional
Although all cars can benefit from Billet Cover And Black Coating, retention of the bearing race to the center
this new design, lower horsepower cars Not Included. section, while an improved, spread bearing
can expect even more gain. Quick Change is less axle tubes and includes design pinion allows a mammoth radius at
Posi-Lock assembly (WIN8104), heat treated lower shaft (WIN8016), 8" 4.11 the juncture of the pinion shaft and pinion
ring and pinion (WIN8111-8S), aluminum spool (WIN8115), Sprint Center gear head. Sold complete with bearings,
“shorty” gear (WIN8133-8S), heavy duty cover (WIN8137) and 6-rib machined Posi-Lock and roller nose bearing.
side bells (WIN8186P).
QUICK CHANGE SET-UP ACCESSORIES
1-1/2" MORE FUEL CELL CLEARANCE! Part No. Description
2.031" Checking Bearing
WIN5294
(2 Req.)
WIN5295 2.031" Carrier Shim Kit
WIN7165 Ring And Pinion Bolt Kit
WIN7340 2.031" Carrier Bearing
ALUMINUM SPOOLS
Spools fit all closed tube rears (“Sprint”, Heavy
Duty).
Part No. Description
31-Spline Aluminum, 2.031" Bearing
WIN5034-11A
Dia., 5.75 lbs.
31-Spline Ultralight Aluminum, 2.031"
WIN5034-11UL
Bearing Dia., 5.12 lbs.
683