Winten auto parts manufacture Co.,Ltd is professional manufacturer for steering system aftermarket, we made discontinued auto parts for GM car repair.

Spacer Ring 7810891 & 7800712 were always sourced together by customers. 

To be honest, we don't know exactly those parts were used. Look at OE sample, our process is tubing---lathe machining-- cutting---rust prevention for low volume

manufacturing. If the EAU increased, we will consider extusion the steel rod and automatic forming.