Stop that annoying and embarrassing "One wheel peel" with one of these!
Traction-Lok limited slip differentials are made by
Ford Racing and have plate type clutches. For use with factory installed or after market 28 spline axles for 7.5" V6 Mustang. Ford Racing Friction Modifier - A must for every new Trak-Lok or Ring Gear & Pinion install. Requires 4 OZ. of Friction Modifier on initial fill (Included with Trak-Lok). Capable of handling up to 350Hp. Add a Ford Racing Ring Gear & Pinion set to finish the rear end upgrade! The 4.10:1 Ring Gear & Pinion is a good match for the AOD/AODE & 4R70W automatic transmissions and the 3.73:1 Ring Gear & Pinion set is more suitable for the T-5 manual transmission. Improve 60 foot times, Improve 1/4 mile times, lower your ET. Improved safety on wet or icy roads in the winter. 3.73:1 Ring Gear and Pinion set is a better choice for the automatic transmission if a supercharger is planned for the future. 
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***** What is a “Limited Slip Differential”? It’s a rear differential unit that keeps power applied to both wheels as evenly as possible. A Limited Slip Differential unit will "lock up" both wheels under power but with reduced power, such as cornering, the axles are allowed to rotate independently of each other thereby reducing the tendency to scrub the rubber off your tires. LS style differentials are much safer to drive on slippery surfaces such as ice, snow or rain soaked streets. ***** So then what is a "Posi-Traction" or "Traction-Lock" rear end? They are both Limited Slip Differentials. General Motors calls their unit a Posi-Traction or "Posi-trak" and Ford calls their unit a Traction-Lock or "Trak-Lok". ***** Does my V6 Mustang have a "Trak-Lok" rear end? No. The 1994-2009 V6 Coupe is delivered with a 7.5" open (non-lock up) differential. The V8 Mustang GTs have an 8.8" Trak-Lok rear in the stock configuration. ***** How much power will my V6 Mustang Trak-Lok rear end handle? According to most sources, the 7.5" Trak-Lok will safely handle up to 450Hp. The 8.8" Trak-Lok will handle even more. ***** Will an 8.8" Trak-Lok differential fit in my stock axle assembly? No. It will not fit inside the housing. You would need to purchase an 8.8" axle assembly. ***** What would I need to purchase in order to convert my stock 7.5" non-lock up to a 7.5" Trak-Lok set up? At the very least you would need the following components: 1) 7.5" Trak-Lok Differential (Ford Racing M-4204-C75). 2) Friction Modifier for proper break in (Ford Racing M-19546-A12). 3) Differential rebuild kit especially if you have over 80,000 miles on your current set up (Motive Gear P/N MP-75BRK). 4) Two quarts of 85W-140 Gear Oil (Castrol or Lucas, my favorites). ***** How do I correct the speedometer for the new 3.73/4.10/etc. Ring Gear & Pinion set I've had installed? On the 1994-1998 models (V6+GT) you would install a 21 or 23 tooth speedo gear in the transmission. This takes about 10-15 minutes to complete. The 1999-2009 models (V6+GT) require the use of a flash tuner (SCT, Diablosport, Accel, Superchips, etc) to recalibrate the speedometer. Ford Racing no longer produces the mechanical recalibrators used on the 1999-2004 models. |
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