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1986-09 Ford Mustang Ford Racing 3.73 Gears Kit for 8.8" Rear End by Ford Racing Performance Parts


Overview   |  Benefits   |  Features   |  In the Box   |  Description   |  Videos   |  Reviews
Mustang Ford Racing 3.73 Gears Kit for 8.8" Rear End (86-09)

This 86-09 Mustang 3.73 gear kit includes everything needed to do a gear install, except for the mechanic!

Item# LRS-4209FRB-K

Your Price: $255.99

Market Price:$259.99
You Save 1.56 % ($4.00)

In Stock!  



Benefits

  • Improved Acceleration
  • Eliminates Guesswork
  • Everything You Need To Do The Job Right

Features

  • Royal Purple Gear Oil Virtually Eliminates Wear
  • Friction Modifier Provides Smooth Operation & Prevents Chatter

What's in the Box

  • (1) 3.73 Ring Gear
  • (1) 3.73 Pinion Gear
  • (1) Master Bearing & Shim Kit
  • (1) Bottle Friction Modifier
  • (2) Bottles 75w90 Gear Oil

Product Description

Mustang 3.73 Gear Kit M-4209-F373N
These Mustang 3.73 gears are a great way to improve acceleration to make your Mustang faster! This kit fits 1986-2009 Mustangs with an 8.8" rear end and features a set of performance Ford Racing 3.73 gears, an FRPP M-4210-B2 bearing kit, a bottle of Ford Racing friction modifier, and 2 bottles of Royal Purple 75W90 gear oil. The bearing kit includes GT500 pinion bearing, carrier bearings, pinion seal, ring gear bolts, pinion nut, crush sleeve, shims, and marking compound. With this kit, you can get your gear installation done quickly and easily.

Ford Racing Friction Modifier
Ford Racing friction modifier is a specially formulated additive to provide smooth operation of clutch-type limited-slip differentials. 1 bottle of friction modifier is required when changing the gear oil in rear ends equipped with Ford traction-lock units.

Royal Purple Max-Gear Oil
Royal Purple Max-Gear gear oil is an ultra-tough automotive gear oil. It’s designed to maximize power and provide unsurpassed protection to heavily loaded gears. It makes gears run smoother, quieter, cooler and longer without overhauls. Max-Gear outperforms other gear oils because it combines the highest quality synthetic oils with Royal Purple’s proprietary Synslide additive technology.

Notes
Although the Royal Purple gear oil has friction modifier mixed in, it is still recommended that you use the bottle of Ford Racing friction modifier to supply your rear end with the proper amount of modifier.

Kit includes:
1 Ford Racing Performance Parts 3.73:1 gearset
1 FRPP M-4210-B2 bearing kit (includes GT500 pinion bearing, carrier bearings, pinion seal, ring gear bolts, pinion nut, crush sleeve, shims, and marking compound)
1 bottle of Ford Racing Performance Parts Friction Modifier
2 bottles of Royal Purple 75W90 gear oil

Application
- Fits 1986-2009 Mustangs with 8.8" Rear Ends

**Although the Royal Purple gear oil contains friction modifier, we highly recommend including the Ford Racing friction modifier along with the gear oil when refilling your rear end.**


Product Videos

More videos of this product!

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!


Customer Reviews

5 out of 5 stars - based on 6 reviews

  Feels great
By on 2/12/2014
So far I'm only 100 miles into my break in period but there is no noise whatsoever. I'm still gonna take it easy for the first 500, but I can already tell that 5th gear pulls harder, but I haven't had a chance to compare them to my 1/4 mile times or acceleration yet....a second review to come.

Yes, I would recommend this item to a friend!


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  Love it
By on 3/22/2014
Installed this kit on my 89 gt. Way better then the stock 2.73 gears. Awsome. Very happy

Yes, I would recommend this item to a friend!


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  A perfect match.
By on 3/17/2014
These FRPP 3.73 gears really make my pony gallop...

Yes, I would recommend this item to a friend!


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  Great mod!
By on 3/27/2014
Bought the Ford racing 373 gear kit a coupleweeks ago and just got them installed today. It sure did wake my stang up! The PA valve body and gears on my aod sure feels a lot different than the stock 273's! I would definitely recommend these gears and valve body combo on your Fox body aod before any other mods! Got my sub frames to. Will install later. All my stuff arrived on time! Thanks Latemodel Restoration!!

Yes, I would recommend this item to a friend!


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  LOVING IT!
By on 4/1/2014
I am loving driving my Mustang with the new gears. The power is awesome.

Yes, I would recommend this item to a friend!


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  Great product
By on 3/29/2014
Easy to install great quality product

Yes, I would recommend this item to a friend!


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Vehicle Applications

Ford Mustang - 1986 (86) - 1987 (87) - 1988 (88) - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93) - 1994 (94) - 1995 (95) - 1996 (96) - 1997 (97) - 1998 (98) - 1999 (99) - 2000 (00) - 2001 (01) - 2002 (02) - 2003 (03) - 2004 (04) - 2005 (05) - 2006 (06) - 2007 (07) - 2008 (08) - 2009 (09)


About This Brand

Ford Racing Performance Parts
Ford Racing Performance Parts - Mustang Ford Racing Parts
Ford Racing is the leader in performance parts and accessories for Mustang and Ford Lightning.

LatemodelRestoration.com is proud to offer Ford Racing Performance Parts for your project. Ford Racing is dedicated to manufacturing the highest quality products offered in the industry. Choose from suspension, exhaust, wheels, and other performance parts at LatemodelRestoration.com. If you want the best for your Mustang or SVT Ligtning, look no further than FRPP!

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