Motive makes some of the gears for ford racing. However the ford racing 4.10s for the 7.5" rear end are made by ford racing.
I puchased the ford racing 4.10 gears with the ford racing traction lock. GEF racing has the best prices. The website says 195.00 for the 4.10s but when i called they were 155.00
-Mac CAI, 73mm Mass Air
-Dual Flowmaster 40s, H pipe, 2.25 in pipe
-42% Underdrive Pulleys
-4.10 Gears & Trac-lok