SCS Professional Series Quick Change Gear Set - 6 Spline - Set 62 - 4.11 Ratio 3.96 / 4.27 - 4.33 Ratio 4.17 / 4.50 Helmet Hose Coupler These billet aluminum water necks

These billet aluminum water necks are designed for Ford 302-351w engines

75 thread size

COMPACT SIZE AND VERSATILITY Rally 400s feature a compact 4" profile with a rugged steel housing makes these lights idea for front bumpers on trucks

and no one has more experience designing quality fitting and performing headers than Hedman Hedders

Precision die-cut for an excellent fit

SCS Professional Series Quick Change Gear Set - 6 Spline - Set 62 - 4.11 Ratio 3.96 / 4.27 - 4.33 Ratio 4.17 / 4.50 Helmet Hose Coupler These billet aluminum water necksManufactured from 9310 aircraft alloy for maximum strength, 6 spline quick change gears are crown hobbed, broached for 6 spline shaft fit, and black oxide finished for corrosion protection. Gears undergo a five step heat treating process to deliver maximum durability. Since 1979, SCS Gearbox, Inc. has been listening to it's customers! When SCS Gearbox first started manufacturing, it was to meet the needs of tractor pullers to provide specialized