mustang 92 question about the 31 spline change..

98 NosStang · 09-23-2001, 10:50 PM

when doing the axle spline change what needs , to be changed also, in other words, what do i need to buy.

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1998 MUSTANG GT 4.6L /Convertible, Automatic. Flowmasters, JBA shorty headers chrome, X-Pipes custom made, 3.73 Gears FMS, 70MM fms T-BODY, BBK cold air induction system W/BBK Filter, 150 SHOT Dry NOS KIT (with the teatherd cord attached to the steering wheel), BBK Fuel Pump, 4-Point HOOKER HEADERS chrome roll bar, STEEDA underdrive pulleys, NEX Racing bucket seats(19 LBS PER SEAT),5-Point harnesses, BLITZ carbon fiber black lite gauges temp. & press.

Mustang92 · 09-24-2001, 10:13 AM

If you buy the axles new don't forget to get new studs for the axles, you'll need longer studs anyways to run slicks legally at Moroso. The other thing you'll need is a new differential for the rear. I just went with a factory Ford 31 spline Trac Lock from a Lightning.

Bill

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00 GT, MAC Offroad H, Steeda Pulleys & Timing Adjuster, C&L 80mm, 4.30’s, Flows w/turndowns, UPR shifter, UPR Pro Series LCA’s, Lakewood 70/30’s & 50/50’s, 253.8 RWHP/292.8RWTQ
Best ET 12.91
Best MPH 105.49
M/M 100, 7085
2001 Mod Motor Shootout 2V NA Champion

98 NosStang · 09-24-2001, 04:34 PM

thanks, i just remember reading how you busted yours at the track , and i was afraid of this happening with me running the slicks ,while leaving the whole shot with a 150 shot of nitrous...i dont wanna grip that bad...ok so its the 31 spline the longer studs and a 31 trac lock for 8.8.......thats it correct.. or do i need to get a whole new diff.

------------------
1998 MUSTANG GT 4.6L /Convertible, Automatic. Flowmasters, JBA shorty headers chrome, X-Pipes custom made, 3.73 Gears FMS, 70MM fms T-BODY, BBK cold air induction system W/BBK Filter, 150 SHOT Dry NOS KIT (with the teatherd cord attached to the steering wheel), BBK Fuel Pump, 4-Point HOOKER HEADERS chrome roll bar, STEEDA underdrive pulleys, NEX Racing bucket seats(19 LBS PER SEAT),5-Point harnesses, BLITZ carbon fiber black lite gauges temp. & press.

Mustang92 · 09-24-2001, 05:14 PM

The 31 trac lock for 8.8 is a new differential.

Honestly you maybe okay running on slicks a few times without any problems. My differential went after 450+ passes at the track and about 150 of them on slicks with 6K RPM launches so it definitely held up to some serious abuse.

Bill

09-23-2001, 10:50 PM	#1
98 NosStang Registered Member Join Date: Aug 2001 Location: MIAMI, FLORIDA, USA Posts: 50	mustang 92 question about the 31 spline change.. when doing the axle spline change what needs , to be changed also, in other words, what do i need to buy. ------------------ 1998 MUSTANG GT 4.6L /Convertible, Automatic. Flowmasters, JBA shorty headers chrome, X-Pipes custom made, 3.73 Gears FMS, 70MM fms T-BODY, BBK cold air induction system W/BBK Filter, 150 SHOT Dry NOS KIT (with the teatherd cord attached to the steering wheel), BBK Fuel Pump, 4-Point HOOKER HEADERS chrome roll bar, STEEDA underdrive pulleys, NEX Racing bucket seats(19 LBS PER SEAT),5-Point harnesses, BLITZ carbon fiber black lite gauges temp. & press.

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09-24-2001, 10:13 AM	#2
Mustang92 Drag Racer! Join Date: Nov 1999 Location: Lake Worth, FL USA Posts: 757	If you buy the axles new don't forget to get new studs for the axles, you'll need longer studs anyways to run slicks legally at Moroso. The other thing you'll need is a new differential for the rear. I just went with a factory Ford 31 spline Trac Lock from a Lightning. Bill ------------------ 00 GT, MAC Offroad H, Steeda Pulleys & Timing Adjuster, C&L 80mm, 4.30’s, Flows w/turndowns, UPR shifter, UPR Pro Series LCA’s, Lakewood 70/30’s & 50/50’s, 253.8 RWHP/292.8RWTQ Best ET 12.91 Best MPH 105.49 M/M 100, 7085 2001 Mod Motor Shootout 2V NA Champion

09-24-2001, 04:34 PM	#3
98 NosStang Registered Member Join Date: Aug 2001 Location: MIAMI, FLORIDA, USA Posts: 50	thanks, i just remember reading how you busted yours at the track , and i was afraid of this happening with me running the slicks ,while leaving the whole shot with a 150 shot of nitrous...i dont wanna grip that bad...ok so its the 31 spline the longer studs and a 31 trac lock for 8.8.......thats it correct.. or do i need to get a whole new diff. ------------------ 1998 MUSTANG GT 4.6L /Convertible, Automatic. Flowmasters, JBA shorty headers chrome, X-Pipes custom made, 3.73 Gears FMS, 70MM fms T-BODY, BBK cold air induction system W/BBK Filter, 150 SHOT Dry NOS KIT (with the teatherd cord attached to the steering wheel), BBK Fuel Pump, 4-Point HOOKER HEADERS chrome roll bar, STEEDA underdrive pulleys, NEX Racing bucket seats(19 LBS PER SEAT),5-Point harnesses, BLITZ carbon fiber black lite gauges temp. & press.

09-24-2001, 05:14 PM	#4
Mustang92 Drag Racer! Join Date: Nov 1999 Location: Lake Worth, FL USA Posts: 757	The 31 trac lock for 8.8 is a new differential. Honestly you maybe okay running on slicks a few times without any problems. My differential went after 450+ passes at the track and about 150 of them on slicks with 6K RPM launches so it definitely held up to some serious abuse. Bill