Oct 282009

The UNITRAX VHP-FSC2B Dodge Viper RT/10 and GTS up to 800 half shafts. This is the third generation version of our popular Viper half shaft upgrade. Half shaft safety loops are also available for 1996 – 2009 Dodge Vipers.

UNITRAX VHP 2009  052UNITRAX VHP More  024

The VHP-FSC2B are shipped complete with Spicer Life universal joints and strap kits.

UNITRAX 800.622.4327

Oct 282009

UNITRAX equipped this 2004 – 2005 Mazda Miata IRS differential with the revolutionary O.S. Giken Super Lock.

04-05 Mazda Miata  002LSD2

OS Giken utilized its accumulated racing knowledge and engineering experience to develop its own limited slip differential. Four years of extensive research and development lead to a new and revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total) and thus the OS Super Lock LSD was born. The increased number of plates directly has not only dramatically improved our LSD design’s locking force and enables it to lock fully and completely. An added benefit to being a fully locking mechanism is that less heat is generated, thus resulting in incredible durability and reliability.

The OS Giken Super Locks are precisely machined from the highest quality materials. Sound engineering and forged gears make the Super Locks the most durable and reliable race performance LSDs available.

The O.S. Giken Super Lock is also available for the Honda S2000

UNITRAX 800.622.4327

Oct 192009

Shaun Carlson

”Former NHRA Pro Stock and Sport Compact racer Shaun Carlson died Oct. 4. He was 35. Carlson previously had been diagnosed with Brugada syndrome, also known as Sudden Unexpected Death Syndrome (SUDS), a genetic disease that is characterized by abnormal electrocardiogram findings and an increased risk of sudden cardiac death, but it is unknown whether that contributed to his death.

Carlson, a talented fabricator who is the car owner for former world drifting champion Samuel Hübinette in the Formula Drift series, had been ill the last few years yet continued to field his team.
Carlson, owner of NuFormz Engineering in Ontario, Calif., had been racing since 1999 but first came to national prominence on the sport compact scene where his front-wheel-drive machines were strong and innovative runners; he built the first sport compact drag car with a tube chassis.

Carlson set NHRA Xplod Sport Compact Racing Series Pro FWD records for e.t. and speed in May 2003 in Gainesville, the same event in which he captured his first NHRA victory. He finished third the standings on the strength of four semifinal finishes. He also scored a victory at the inaugural Palm Beach NHRA Sport Compact Nationals in Florida in 2005 and also drove to final-round appearance at the 2004 K&N Filters NHRA Sport Compact Fall Nationals at Englishtown. He also was the No. 1 qualifier with at Texas Motorplex in August 2004, a season in which he finished fourth. Outside of the NHRA, he was the 2002 Xbox Cup champion in the Pro Outlaw class.
Carlson got his first taste of NHRA professional racing in 2004, subbed for an injured Darrell Alderman on Pro Stock at the Winternationals , where he grabbed a first-round win and nearly advanced to the semifinals in his debut.
Two years later, he piloted the Team Mopar/SRT Dodge Stratus R/T for Don Schumacher Racing in the NHRA POWERade Drag Racing Pro Stock Class for the 2006 season. He competed at 15 events but only qualified at one, in Las Vegas in the Spring, and finished 25th in the standings. Carlson used his mechanical skills to assist Allen and Roy Johnson, owners of J&J Racing, in tuning friend Richie Stevens Jr.’s Team Mopar/Valspar Dodge Stratus R/T during the latter part of the season, helping Stevens Jr. earn two late-season wins in 2006.
After leaving drag racing, Carlson became involved in professional drifting. NuFormz Racing maintained the Mopar Viper Competition Coupe that Hübinette piloted to the 2004 inaugural Need for Speed Underground Formula D Drift Series championship. Hübinette earned two wins for NuFormz Racing in 2005 and scored a runner-up finish in the Formula Drift standings then won the 2006 Formula D championship on the strength of three wins. Hübinette captured a fifth-place finish in the final 2007 Formula Drift points standings and finished second again in 2008 on the strength of three podium finishes in his NuFormz Racing-prepped Mopar Dodge Viper SRT10.
Carlson was named as one of the Top Ten Innovators of All Time in the sport compact and drifting scene, by Super Street magazine.”
-by Phil Burgess, National DRAGSTER Editor

Shaun was a great friend of UNITRAX. He helped us develop better products and we will truly miss him. Our most heartfelt condolences go to his family, friend and fans.

A Memorial Fund has been set up in honor of Shaun Carlson:

The Shaun Carlson Memorial Fund
1943 North Campus Avenue B-148
Upland, CA  91784

Shaun was also a photographer and journalist. For More information on Shaun’s career see: www.moparspeed.com/sccafd_home/sccafd_stats/sccafd_owner_carlson.html

Oct 192009


Eaton Detroit Truetrac for the 2009 Pontiac G8

The Detroit Truetrac was the first helical gear differential ever introduced into the automotive aftermarket as an Eaton brand. It remains the leading helical gear-type limited slip differential in the industry. Detroit Truetrac’s proven helical gear design eliminates the need for wearable parts, resulting in maintenance free traction recognized not only for its toughness, but its smooth and quiet operation as well.

Proven design and effective performance all make the Detroit Truetrac limited slip differential the ideal choice for a wide variety of vehicle applications. No maintenance –   Just Traction.

  • Smooth Operation
  • Performs Open Untill Needed
  • Fully Automatic Limited Slip
  • No Special Lubrication Required
  • No Special Run In Procedure Required
  • Billet Steel Heat Treated Body and Caps
  • Forged Heat Treated Shot Peened Internal Gears

UNITRAX 800.622.4327

Oct 192009


• Harrop | Eaton ELocker Toyota 40-80 Series Rear 12 Bolt 30 Spline

  • Toyota Landcruiser Rear 40, 55, 60, 62, 75 & 80 series (including Lexus LX450) with 12 Bolt full floating axle assembly (1977 – 1997)

All applications utilise the later 50mm I/D carrier bearings

• Harrop | Eaton ELocker Toyota “Hilux” 10 Bolt 30 Spline

  • Toyota Landcruiser Front 78, 79, 100 & 105 series with live front axle assembly (1998 on)
  • Toyota Landcruiser Front 40, 55, 60, 62, 75 & 80 series (including Lexus LX450) with live front axle assembly (1990 – 1997)
  • Toyota Landcruiser II Front and Rear LJ70, RJ70 (All models)
  • Toyota Landcruiser Prado, 120 series, Lexus GX Rear (1996 on)
  • Toyota “Hilux” Front with live front axle assembly (up to 2005)
  • Toyota “Hilux” Rear (up to 2005)
  • Toyota 4Runner Front LN61, YN63 with live front axle assembly (up to 2003)
  • Toyota 4Runner Rear LN61, YN63 all models

All applications utilise the later 50mm I/D carrier bearings

UNITRAX 800.622.4327

Oct 192009

Harrop 12 Bolt

• Direct bolt up replacement for GTO Independent Rear Suspension M80IRS

30 spline forged output shafts

Gear ratio choices from 3.08:1 through to 5.46:1

Choice of Detroit TrueTrac, Eaton Posi LSD or Detroit Locker differential

Utilizes standard CV joints, axle shafts and ABS sensors

Supplied with Harrop Sport Differential cover and mount kit for added suspension stability


33 spline forged output shafts

Extreme duty CV joint and axle shaft upgrade

Modified Change Over driveshaft available (20mm shorter than standard)

Extreme duty driveshaft upgrade

Heavy duty mounting bush kit upgrade

UNITRAX • 800.622.4327