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.
Getting old just means you were smarter than some and luckier than others.