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What is CAD?
What is CAD? It’s not short for Cadillac… In this case it’s not the acronym for Computer Aided Design… For our purpose CAD stands for "Central Axle Disconnect." At its core, the Yukon Dana 30 CAD Delete Kit blocks off the vacuum actuated engagement of four-wheel drive in Dana 30 differentials.
Select Jeep vehicles produced from 1984 to 2001 are equipped with the automaker’s reverse rotation Dana 30 differential that’s outfitted with the Central Axle Disconnect (CAD) system. The system components, located on the passenger-side axle tube, consist of a two-piece splined shaft and a coupler that a vacuum-operated shift fork actuates to connect or disconnect the axle, which engages or disengages four-wheel drive.
Dana 30 Heritage
The Dana 30 has been the go-to front diff for the Jeep Wrangler since the model’s Jurassic Period… CJ-5 models of the early 1970s. Available in high- and low-pinion versions as well as standard and reverse rotation versions, the Dana 30 is an important building block in the Jeep hierarchy. There are tons of aftermarket parts for this differential and spares waiting for rescue in junkyards across the country.
CAD Versus The Elements
Time is no friend to the CAD system. The vacuum lines can crack, the vacuum motor can fail, or the system can be compromised in another manner, and cause the Jeep to be stuck in two-wheel-drive… that’s no fun. Further, the two-piece axle is not as strong as a one-piece design. Fortunately, the stronger and more reliable one-piece axle from a TJ or ‘non-disconnect’ XJ are direct swaps. The catch… sealing the housing post-swap.
Yukon To The Rescue
Enter the Yukon Dana 30 CAD Delete Kit. It consists of a disconnect housing blocking plate, gasket, and inner axle seals that will accommodate a one-piece axle design.
Yukon Dana 30 CAD Delete Kit Applications
1984 - 2001 Jeep Cherokee XJ 4WD
1984 - 1998 Jeep Cherokee XJ Sport 4WD
1986 - 1992 Jeep Comanche MJ 4WD
1984 - 1991 Jeep Grand Wagoneer ZJ 4WD
1993 Jeep Grand Wagoneer ZJ 4WD
1987 - 1995 Jeep Wrangler YJ 4WD
End Of The Trail
The Dana 30 has been around since the prehistoric days of the Jeep brand… and it’s not going anywhere. Neither is Yukon Gear & Axle. We have a vast inventory of replacement parts that will keep Dana 30s on the road and performance products that will improve the breed. Happy Wheeling.
