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** some limitations on larger size items such as drive shafts and rear end housings.
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DRIVE SHAFTS
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3 inch OD Aluminum .125" wall 6061
3.5 inch OD Aluminum .114 wall
4 inch OD Aluminum .087 wall
Drag Race Aluminum .125 wall
Replacement OEM Aluminum Drive Shafts
CARBON FIBER DRIVE SHAFTS
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2 inch OD Chrome Moly
2 inch OD Steel DOM
3 inch OD Chrome Moly
3 inch OD Steel DOM
3.5 inch OD Chrome Moly
3.5 inch OD Steel DOM
2.5 inch OD Steel DOM
Replacement OEM Steel Drive Shafts
TRANSMISSION SLIP YOKES
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OFFROAD / JEEP
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7.5 inch GM
8.5 inch GM 10 bolt
8.8 inch Ford
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9 inch Ford Cases
Assembled 9" Ford Center Sections
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Xtreme Gear Ultralight Series
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9" 8620 Xtreme Ring & Pinions
9" 9310 PRO Xtreme Gear Ring & Pinions
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9" HOUSING, AXLE & HUB
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9" Ford Flanged Rear
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Wheel Bearings, Races & Seals
9" Ford GN Floater Rear
HNF9 Stamped Center Housing
Wheel Bearings, Races & Seals
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REM ISF Microfinished Wheel Bearings & Races
9 inch Ford Street Rod Housing Complete Kits
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APPAREL
BRAKE KIT - REAR
JEEP / OFFROAD
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REM FINISHING and CRYO
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Day Lube for Bearings
REM ISF Microfinished 9" Ford Installation Kits
REM ISF Microfinished Parts
Installation & Order Forms
PEM Catalog 4th Edition
California Prop 65 Warning
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Bearing Puller Kit
Case Spreader
Disc Brake Kit Installation
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Floater Housing Order Form
GN Hubs
PEM 9" Ford Spool Spline Location
PEM Drive Shaft Warranty Information
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** some limitations on larger size items such as drive shafts and rear end housings.
This is a web site special and does not include phone in orders. **
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MY CART
DRIVE SHAFTS
ALUMINUM DRIVE SHAFTS
3 inch OD Aluminum .125" wall 6061
3.5 inch OD Aluminum .114 wall
4 inch OD Aluminum .087 wall
Drag Race Aluminum .125 wall
Replacement OEM Aluminum Drive Shafts
CARBON FIBER DRIVE SHAFTS
STEEL DRIVE SHAFTS
2 inch OD Chrome Moly
2 inch OD Steel DOM
3 inch OD Chrome Moly
3 inch OD Steel DOM
3.5 inch OD Chrome Moly
3.5 inch OD Steel DOM
2.5 inch OD Steel DOM
Replacement OEM Steel Drive Shafts
TRANSMISSION SLIP YOKES
CHROME MOLY 1350 QUICK RELEASE SLIP YOKE
FORGED BLACK CHROME MOLY SLIP YOKE
OFFROAD / JEEP
U JOINTS & U-bolts
PARTS Slip Yokes & Stub Shafts
Transmission Slip Yokes
CV Heads
Flange Yokes
Yoke Shaft
Stub Shaft
Small Parts
GEARS & CENTERS
7.5 inch GM
8.5 inch GM 10 bolt
8.8 inch Ford
9 inch Ford
9 inch Ford Cases
Assembled 9" Ford Center Sections
Circle Track Center Sections
Drag Race Center Sections
Street Driven Center Sections
Bearings & Installation Kits
Bearings
Installation Kits
Full Steel Spools
GM 12 bolt
Mini Spools
Rear End Yokes
Xtreme Gear Ultralight Series
9" 8620 Xtreme Ring & Pinions
9" 9310 PRO Xtreme Gear Ring & Pinions
9.5" 9310 PRO Xtreme Ring & Pinions
9" HOUSING, AXLE & HUB
9" Ford Flanged Rear
Wheel Bearings, Races & Seals
9" Ford GN Floater Rear
HNF9 Stamped Center Housing
Wheel Bearings, Races & Seals
REM ISF Microfinished Wheel Bearings & Races
9 inch Ford Street Rod Housing Complete Kits
QUICK CHANGE
Quick Change Assemblies
Quick Change Gear Sets
Quick Change Replacement Parts
APPAREL
BRAKE KIT - REAR
JEEP / OFFROAD
TOOLS & MISC
REM FINISHING and CRYO
Day Lube for Bearings
REM ISF Microfinished 9" Ford Installation Kits
REM ISF Microfinished Parts
Installation & Order Forms
PEM Catalog 4th Edition
California Prop 65 Warning
Install Instructions and Order Forms
View All Install Instructions and Order Forms
Bearing Puller Kit
Case Spreader
Disc Brake Kit Installation
Drive Shaft Order Form
Driveshaft CV Order Form
Flanged Axle Order Form
Flanged Housing Order Form
Floater Housing Order Form
GN Hubs
PEM 9" Ford Spool Spline Location
PEM Drive Shaft Warranty Information
Quick Change Assembly Instructions
Quick Change Gear Chart for 2025
Quick Change Ring and Pinion Set Up
Ring and Pinion Installation Instructions
Third Member Break In Instructions
Xtreme Gear Spline Location Chart
Videos
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Ford 9 inch HELI TRAC 31spline Differential
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Our Price:
$
469.00
Product Code:
F9HT-31
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Description
Ford 9 inch Heli Track 31 spline Differential
1.78" bearing journal size
Helical cut gear driven posi traction for smooth operation
Traction to the wheel that needs it
Great for street driving and high performance.
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