Your search for "baja torque biasing diff" revealed the following:

DIABLO BAJA Billet Rear Shock Tower

$49.95

OUTLAW V4 Hybrid Semi Roller Kit

$1,199.00

FLM BAJA Extended Front Lower Arms

$84.75

Detroit Performance Pull Start Extension

$8.95

OUTLAW LH (IGN) Side Brace

$26.95

IRC Big Bore Shock O-Ring Kit

$4.95

VEKTA.5 Front/Rear Differential Ring Gear [KV2237]

$39.99

Upgraded HD billet baja servo brace

$26.00

FLM Losi 5T Center Differential Carrier

$39.95

FLM Super Duty Baja Extended Arm Driveshafts (2) - FLM90013

$39.95

OUTERWEARS - Water resistant Filter Cover

$19.95

VEKTA.5 & VESLA.5 Differential Gears & Shims [KV2239]

$23.99

Kraken Billet Losi 5T & 5ive 2.0 Servo Tray

$179.95

AGFRC Brushless 78KG Billet Servo - A280BHMW

$259.99

IRC Red UHD Rear Baja Big Bore Springs

$21.95

FLM Losi 5T Center Differential Carrier (front and rear halves only)

$85.00

Detroit Performance RC Baja Front only lowering kit - no shocks

$62.95

BONEHEAD Carbon BAJA Twin Tranny Plate

$64.95

BLACKBONE 9,500rpm 54mm Clutch Spring

$19.95

Spare IRC UHD Baja Outer Drive Cups

$64.95

IRC Red UHD Front Baja Big Bore Springs

$21.95

TAYLOR BIG BORE BILLET PULL START (not zenoah etc)

$95.00

Taylor 1" Extended Baja Billet 24mm Wheel Hub Kit incl Billet Enclosed Nuts

$47.99

SRC UHD BRP Wheel Adaptors

$68.75