Nmca allows 3-4 links and any American made automatic transmission.

3: BRAKES & SUSPENSION
3.1 BRAKES
BRAKES: The braking system may be upgraded. All cars must have front and rear
hydraulic brakes. Automated brakes or any type of traction control is prohibited.
Application and release of brakes must be a function of the driver’s foot. Line loc
permitted on front wheels only. Any other electric, pneumatic, or hydraulic device in the
system is prohibited.
3.2 SHOCK ABSORBERS
SHOCK ABSORBERS: each vehicle in competition must be equipped with one
operative shock absorber for each sprung wheel. Shock absorbers may be either hydraulic
or friction type, securely mounted and in good working order.
3.3 STEERING
STEERING: (NSS Classes) OEM steering mandatory.
STEERING: (F/X Classes) OEM or aftermarket steering in stock location mandatory.
3.4 SUSPENSION
FRONT SUSPENSION: Stock front suspension required. Aftermarket direct replacement
suspension components including A-arms permitted. Aftermarket, direct replacement bolt
in, tubular A-arms permitted.
REAR SUSPENSION: Rear suspension of ladder bar, three/four link, or stock rear
suspensions permitted.
3.6 WHEELIE BARS
WHELLIE BARS: Wheelie bars permitted in FX classes and A/NSS.