Dana Spicer OEM Spindle Nut Kit for Standard Dana 30 & DANA 44 or GM 10 Bolt Spindles Front 4X4 Axles Can be used to replace other styles of spindle nut kits. This style is designed for manual locking hubs. This kit is used in Chevy and GM 10 bolt front axles with manual locking hubs going back into the 60's up to 1991 in the 4X4 Blazers and Suburbans and up to 1988 in the 4X4 K10 and K20 trucks. Spindle Nut Kit Compatible with Dana 44 or GM 10 Bolt Ford Chevy Dodge Jeep Manual Hubs