Winters Performance 2255C-9120 Grand National Hub Kit, 5 on 5 Inch

							                        

                                                        Replaces the 2-1/2" GN bearing standard hubs used on many modifieds.  Less friction equals more speed.  No machine work required. Work great for those in limited horsepower classes who want to capitalize on every advantage they can get!
                                                    
						                        

							                        

                                                        One size fits all! Fits any inner axle tube with an I.D. between 2-1/2" and 2-3/4". This eliminates ordering the wrong seal and allows you to always have the correct seal on hand. Typical applications* include Ford 9”, Quick change type rears, and 12 bolt GM. All seals are supplied with general installation guidelines. 
Inner Axle Seal I.D. = 7/8" 
Axle sizes/Splines:  1-3/16” thru 1-1/2” / 28-31 
 
* Applications are reference only. Seals may be used on any rear end that is within the part number’s dimensional range. Rears can vary within a single model year and within the same model. Measure listed parameters before ordering.

                                                    

						                        

							                        

                                                        
Speedway's premium 32 Vane scalloped cast iron brake rotors weigh only 5.58 lbs.
Vented iron 
Bolt Circle: 8 x 7"
Threads:  Thru
Face: scalloped
                                                    

						                        

							                        

                                                        
These scalloped iron brake rotors provide effective lightweight options for  sprints, late models, modifieds, and other competition applications that  race in low to medium temperature ranges. Steel rotors are typically found in lighter weight open wheel cars such  as sprints and modifieds.  Speedway's premium 11.75" x .810" drilled scalloped brake rotor weighs only 5.07 lbs. 
Scallop configuration provides greatest weight reduction on a vented straight vane iron rotor
Scallop machining removes as much as three pounds, or nearly 33% of the rotor mass
Vented castings provide increased cooling capacity over machined steel plate rotors
Improved structural durability over drilled rotor designs
Vented iron 
Inboard mounted (Sprints)
Note: Suitable for Light Dirt Racing applications. Scalloped Rotors are unsafe for street use.
                                                    

						                        

							                        

                                                        Speedway's premium 11.75" x 1.25" drilled & scalloped vented cast iron brake rotors weigh only 6.13 lbs.
                                                    
						                        

							                        

                                                        
When it comes to brake rotors, racers are constantly searching for the ultimate balance between the lowest weight and the ability to effectively manage heat. Decreased rotating weight in the drive line provides quicker deceleration under braking and quicker acceleration out of the corners. Lower weight also benefits handling with improved spring and shock control over the unsprung suspension mass. Wilwood's ULD-32 drilled iron rotors provides effective lightweight options for sprints, late models, modifieds, and other competition applications that race in low to medium temperature ranges.
Cast from premium grade, long grain carbon iron
Close tolerances on face and vane thickness
32 straight vane casting provides superior heat management and long service life
Two row, 64 hole pattern - alternates between and directly over each vane
Each hole deeply chamfered to eliminate stress points
Rotating and unsprung rotor mass reduced by 12%
Left or right hand mounting locations
 
                                                    

						                        

							                        

                                                        
AFCO's disc brake rotors set the pace for design, quality and performance. Special designed materials, enhanced computer imagery and design, as well as extensive lab and track testing have yielded a superior brake rotor. All AFCO rotors have been optimized for strength, weight, and heat dissipation ability to meet the demands of the serious racer.
Premium grade alloys for superb thermal shock stability
Machined and blanchard ground to assure precise flatness
Precise vane placement for high volume cooling
Instructions (PDF)
                                                    

						                        

							                        

                                                        
Keeps your GN hubs rolling free. Installs between  inner and outer hub bearings. Reduces bearing preload under load  conditions. Works with tapered and angular contact bearings.
Instructions (PDF) 
                                                    

						                        

							                        

                                                        Grand National rear hub kit available with 5 on 4-3/4" or 5 on 5" wheel bolt patterns.