Ultra Fab 9" Ford Bolt-In Leaf Spring Housing
With Mounts, Ends, Fill, Drain, & Vent
Part Number: HF9LEUF
 
Strange Ultra Fab Ford 9″ Bolt-In Leaf Spring Housing
Custom widths available at no additional charge
Information Needed
• Vehicle year, make and model
• Housing ends
• Housing width
 
DOMEX 100XF Material
• Extra high strength cold formed steel
• Utilized in top tier NASCAR housings
• Equivalent strength of chromoly
• Less prone to fatigue cracking than chromoly
• Highly ductile in the weld zone affected by heat
• Low carbon easily MIG or TIG welded
 
Features
• Triangulated Ridge Design
• Constructed From .125″ material
• Heavy Duty .375″ Face Plate
• Internal Radial Gusset Plates
• Tube locations Slotted & Welded For 5″
• Clearance Provided For Cases With HD Main Caps
• Housing Will Accept 9″, 9 1/2″, or 10″ Development Gear Sets
 
Tubing
• DOM 1026 steel
• 3.00″ OD x .250″ wall thickness
 
Vent
• Prevents build-up of internal pressure
• Ensures sealing integrity
 
Fill & Drain
• Facilitate fluid changes
• Allows for inspection of ring gear
 
Housing Ends
• Forged steel
• Choice of Strange end
 
Professionally Welded
• Jig welded to ensure proper alignment
• Tubes internally & externally welded to housing
• Provides maximum support & rigidity
 
Drag Race Axle Package - 28, 30, 31, 33 or 35
Axles, Bearings & 5/8" Studs
Part Number: P100758
 
Designed Specifically For Drag Racing
Thru-hardening maximizes the torsional strength of Hy-Tuf axles
This also reduces the flexibility necessary for street driving
Packages For Street & Track 
Applications & Splines Available
* With aftermarket 3.150″ housing ends
** With OEM or aftermarket 3.150″ housing end
 
Hy-Tuf Ultra Strength Axles 
• Forged from high nickel, molybdenum and chromium steel
• Increases torsional strength and material toughness
• Manganese added to improve hardness consistency
• Majority of machining performed before heat treat
• Thru hardened to Rc 45-48
• Finish machined after heat treat to ensure trueness
• Choice of 28, 30, 31, 33, 35 spline
• Choice of bolt circle
• Forged in the USA
• Designed and machined by Strange Engineering
 
Ball Bearings 
• Low friction bearings designed specifically for Drag Racing
• O.D. grooved for O-ring to eliminate inner axle seal
• Includes O-rings and locking collars
 
Choice of 5/8″-18 Stud Kit
Bolt Style Stud Kit 
• 5/8″-18 x 3″ Grade 8 fully threaded bolts *
• Thin .200″ hex head provides additional clearance
• Part number suffix determines width of aluminum washers
• No suffix = .4375″ / S = .250″ / L = .688″
• Includes threaded sleeves, installation tool & flanged lug nuts
* Length measured from underneath the hex of the stud
 
Shank Style 
• 5/8″-18 chrome moly stud available in six different shank lengths
• Part number suffix determines width of aluminum washers
• No suffix = .4375″ / S = .250″ / L = .688″
• Includes thin head self locking inner nuts & flanged lug nuts