For countless R/C fans & practitioners, leaving a car or truck factory stock is simply not an option. Here we offer a collection of known hop-up parts available for the Mad Force. As the list grows, more categories will be formed. Note that this list only contains items that seem particularly useful or great-looking.

Suspension & Steering

Pic	Part	Mfg'r	Features	Approx. Price	Available from
	Aluminum steering cranks	Rix Gear	Reduces steering slop, increases smoothness with ball bearings	$26	Rix Gear
	Front servo mount set w/ bumper	New Era	Another way to eliminate slop in the steering column. Moves the servo down to the axle, Clod Buster style. Includes aluminum bumper for protection, accepts dual shocks.	$70	New Era Models
	Double shock stay	Kyosho	Allows mounting of dual shocks per wheel for increased dampening	$28	Tower Hobbies
	Ultra soft springs	Kyosho	Helps remove bounce from the truck's ride characteristics for tackling rough terrain.	$16	Tower Hobbies
	Special steering rod set	Kyosho	Increases durability, decreases steering slop	$13	Tower Hobbies
	Aluminum Steering Crank	Kyosho	Decreases steering slop	$31	Tower Hobbies, Hobby Etc.
	Titanium turnbuckles	Lunsford	Increased durability & reliability. Use: Two 2 1/4" X 3.5mm Super Duty (from knuckle to crank), 3 5/8" x 3.5mm Super Duty (links the 2 cranks), 4mm X 33mm for the rear knuckle	$9/pr.	Tower Hobbies

Wheels & Tires

Pic	Part	Mfg'r	Features	Approx. Price	Available from
	JumboForce wheels	JPS	One-piece aluminum direct replacement rims allow you to run the amazing Imex JumboMaxx tires on your Mad Force! Click the link at right for pictures of these wheels installed on some show trucks.	$165	RC4WD.com
	Aluminum wheels	JPS	CNC machined from a single block of aircraft-quality aluminum. Available in standard or 1" offsets. Eight designs available.	$149	RC4WD.com
	Mega Force wheels	Kyosho	Direct replacement for stock wheels, adds ~1" to truck's width, nicer design	$15/pr	Tower Hobbies
	Monster Blazer wheels	OFNA	Fits Mad Force hubs, allows you to run IMEX JumboMaxx or OFNA Monster Pirate or Monster Blazer tires	$14/pr	Tower Hobbies
	V-Spike tires	Duratrax	Direct fit for Mad Force or Mega Force wheels. Provides increased traction.	$15/pr	Tower Hobbies
	Baja tires	IMEX	Direct fit for Mad Force or Mega Force wheels.	$15/pr	IMEX R/C
	Giant Trac tires	Pro-Line	Direct fit for Mad Force or Mega Force wheels.	$25/pr	Tower Hobbies
	Monster foam inserts	OFNA	Direct fit foam inserts for stock Mad Force wheels & tires	$14/pr	Tower Hobbies

Chassis & Structure

Pic	Part	Mfg'r	Features	Approx. Price	Available from
	Infinitely adjustable wheelie bar	R/C Alloys	Fully adjustable to any angle you want, rugged construction, longer than stock, with larger wheels.	$40	R/C Alloys
	Extended chassis kit	Kippster Racing	Improves weight distribution & balance, provides 15 shock mounting positions front & rear	$60	Kippster Racing
	Center skid	New Era	Provides protection for the center drive & brake assembly	$20	New Era Models
	Front bumper	New Era	Provides protection for the front axle against hard hits.	$40	New Era Models
	Roll bar	New Era	Protection against damage to the engine, fuel tank & other components on bad roll-overs & upside-down landings	$45	New Era Models
	Polished side plates	Kyosho	Trick look!	$37	Tower Hobbies
	Polished under plate	Kyosho	Trick look!	$16	Tower Hobbies

Engine, Exhaust & Drivetrain

Pic	Part	Mfg'r	Features	Approx. Price	Available from
	Monster Locker	Vertigo Performance	Drop-in diff locker for maximum hill-climbing traction	$24.95	Vertigo Performance
n/a	Joint cups, new Long version	Kyosho	Official answer to the popping driveshaft problem.	$10 ea	Tower Hobbies
	Center shaft set	R/C Alloys	Dramatically stronger than stock units, also great looking.	$40	R/C Alloys
	Special header & adapter	New Era	Improves exhaust flow dramatically, allowing increased power. Best when used with an upgraded muffler.	$40	New Era Models
	TCD front gear set	Kyosho	Torsen-like diff action sends power to the wheel with traction. Note: Ineffective if your front wheels are not on the ground! TCD = Torsion Control Differential.	$125	Tower Hobbies
n/a	TCD rear gear set	Kyosho	Torsen-like diff action sends power to the wheel with traction. Note: Ineffective if your front wheels are not on the ground! TCD = Torsion Control Differential.	$125	n/a
	Hardened diff gears	Kyosho	Increased durability for stock "LSD" diffs	$90	Tower Hobbies
	RB 063 tuned pipe	RB	Increased stock engine performance, dramatically reduced operating temperatures	$48	Ace Hobbies
	Center universal driveshaft	Kyosho	Increased durability & reliability, shiny looks	$25 ea.	Tower Hobbies