This k-member is for the serious racer, it's designed to use either a Pinto rack and pinion or Stiletto. This design should allow you pull/remove the oil pan on any engine combo. These have been used by some of the fastest 10.5 and radial cars for over 10 years now with our first one built in 2004. Custom or modified version's of this unit can still be made to order. These are only offered in moly! These use stock type a-arms so any a-arm can be used that would fit a stock unit. These units are made for motorplate/midplate's only.