The RockJock 1 Inch Front Bump Stop Kit for all JL Wrangler 392 Hemi models (only) provides proper bump stop extension when using our lifted JL front coil springs. 
Spacers are CNC machined billet aluminum. Finish is clear anodize on the bump stops and zinc plating on the hardware.
 
Kit Fits:
JL Wrangler Unlimited (4-door) – 392 Models
 
Kit Includes:
(2) Aluminum bump stop spacers (fit right or left side)
All Required Hardware
 
Component Specs.:
Spacers are 1.000 in. tall
Spacers are 3.000 in. O.D.
Thru-hole is .515 in. (to accept a 1/2 in. bolt)
 
Note:
Intended for use with our RJ-144100-101 3.5 in. lift JL 392 Front Coil Springs.
 
Parts List:
1/2 in.-13 x 1 1/4 in. Long Hex Bolt: RJ-501203-3
1/2 in. Lock Washer: CE-91102A770
12mm Flat Washer: CE-91455A150