Mark Jaremko, Phoenix F1K-09, Stohr WF-1
"Compared to the Quaife the first thing you notice about the WRD diff is the added traction and rear end throttle on stability out of slow and medium speed corners. This is a key performance (lap time) advantage as most corners leading on to straights are slow to medium speed. The 2nd advantage over the Quaife is rear tire temps and degradation. The Quaife locks hard and abruptly and has a tendency to spin the rear tires, causing added tire temp and wear over a long run or race distance."

Rod O'Connor, Ralt RT-5 Super Vee
"Thank you for your excellent service on my Hewland Transmission, It feels and looks like a new unit. It is noticeably quieter than it was and shifts as smooth as velvet. The extra modifications you made are also a noticeable improvement"

Michael Scully, Swift DB-5
"I've been running in the west coast 4Flight S2000 series in a highly modified DB5 with a Staffs box prepped by WRD...and winning 7 of 8 races in the process. While we all know there are a vast number of variables associated with winning races, I can say with certainty that WRD's contribution to my program has been highly skilled and particularly professional."