Crown Automotive
Permanent Lock

Posi-Lok Permanent Lock; Jeep
  - CRWN-PSL1100
Price: $212.91
Sale Price: $141.94
 

Fits:
1987-1995 YJ Wrangler
1984-1993 XJ Cherokee
1986-1992 MJ Comanche

w/ Disconnect; Perm Lok Permanently Engages Central Axle Disconnect (CAD), Couples Both Front Axles; Axles Will Not Pull Until Transfer Case Is Engaged.