Application
Top Fuel & Funny Car
Description
Complete 12 1/4″ Top Load Live Axle Assembly
Includes 11 1/2″ carbon brake kit
Mounting Plates Are Not Included
Quick Specs
5 1/2″ bolt circle
12 1/4″ 3.20 Pro gear
32 1/2″ wheel to wheel
14 3/8″ between mounting plates
Features
Case
• 206-T4 premium aluminum
• Designed using finite element analysis
• Black Enduraguard® finish
Cover
• AZ91-T6 Magnesium
• Lightweight
• Ribbing increase stiffness
• Internal tabs increase case ridigity
• Semi gloss black powder coat finish
Spool
• 7075-T6 forged aluminum
• Fully machined
• 36 spline 30° pressure angle
• Black anodized
Axle
• Ti-17 titanium
• 1.750″ gun drilled
• Thru hardened
• Straightened to .002″ TIR
• Liquid penetrant inspected
• Shot peened
• 36 spline 3.110″ OD – Spool
• 34 spline 2.890″ OD – Hubs
Tube Ends
• AZ91E-T6 magnesium
• Ribbed to increase stiffness
• Black finish
Hubs
• 2024-T4 billet aluminum
• 5 on 5 1/2″ bolt circle
• Safety lug design
• Mates with approved Top Fuel wheels
• 34 spline 30° pressure angle
• Clear anodized
Wheel Studs
• 8740 chrome moly steel
• Heat treated
• 11/16″-18 press-in design
• Black oxide finish
Lug Nuts
• 7075-T6 aluminum
• 11/16″-18 thread
• Black anodized finish
• 1.302″ OD integral anti-marring washer
Oil Pump
• 6061-T6511 billet aluminum
• Hard anodized aluminum gear set
• Aluminum pick-up with screen
• Ensures constant bearing lubrication
• Jets provide pressurized oil to gear contact area
• Engineered specifically for this application
Gear Set
• 3.20 Ratio
• 9310 forged material
• Carburized during heat treat
• 12.250″ OD ring gear
• Retained by (16) 1/2″-20 ARP bolts
• 3.375″ OD pinion shaft
• ID shaped to remove extra weight
• Nose supported by HD high speed bearing
• Integral 20 spline female coupler
Carbon Brake Kit
• 11 1/2″ carbon rotors
• Carbon brake pads
• 4 piston billet aluminum calipers
• Equipped with insulated pistons
Brake hoses and lines are not included
Calipers are tapped 1/8″ NPT and supplied with male 3 AN fittings
Oil Capacity
5 quarts
Requires external oil lines – Not supplied
Mounting Plates
Semi-finished mounting plates…. L7000MP
Replacement Parts
Gear set………….. R7422
Rotor……………… L4050B
Pad………………… L4050H
Lug nut…………. L7010NY
