40-Tooth Long Shaft Speedometer Gear

Found two on E-bay but they aren't cheap...wow!
NOS MOPAR SPEEDOMETER PINION GEAR DODGE 25 26 29 30 31 33 35 37 38 39 41 40 42 | eBay

MOPAR SPEEDOMETER PINION GEAR 40 TOOTH/ORANGE 3.91 4.10 Gears 440 HEMI Cuda GTX | eBay