SPR-KD is a new one. I did some searching and only found a few guys asking what a KD rack was out of. Here's the list I've seen posted a few times. Unsure of the accuracy of this list so consider it a rough guide subject to change SPR GY...'94-'96 All SPR RT...'97-'98 All SPR SH...'99-'01 V6 SPR SJ...'99-'01 V8 SPR VT...'00 Cobra R SPR ZL...'02-'04 V6 SPR ZK...'02-'04 V8 SPR ZM...'03-'04 Cobra I've heard it both ways that the housing doesn't matter on a reman, only the internals matter. However, there's no way to verify the internals really? I've also heard that cardone's method of "converting" a rack to 03/04 cobra specs is simply adding the rack limiters, but using whatever internals were present and replacing if necessary.