SpeedFactory Racing Honda/Acura D-Series Upper Coolant Fill Neck Style:32mm This is not specific to

This is not specific to locking VTEC

The bearing cap is also 7075-T6 with ultra thick under-bolt mounting flange and is the strongest available

treated with our proven heat treat process and strengthened in all the right areas

Pin End Bore: 19

It's because MFactory holds excellent tolerances on these LSD's (as does Honda on the OEM differential) and their D16 LSD is a specific amount shorter than the OEM differential by the same distance on both sides relative to the ring gear mounting face position

SpeedFactory Racing Honda/Acura D-Series Upper Coolant Fill Neck Style:32mm This is not specific toWhether you have a custom radiator or a SpeedFactory Race Tucked radiator, you need a proper way to fill your engine's cooling system from the highest point and we have the solution. SpeedFactory Racing D Series Upper Coolant Fill Necks are compatible with most aftermarket radiator setups, and change the high point of your cooling system for easy filling and system air bleeding. Our necks are manufactured in house using high quality aluminum materials