The RockJock 2 Inch Front Bump Stop Kit for all JL Wrangler and JT Gladiator diesel models (only) provides proper bump stop extension when using our lifted front coil springs. 
In high articulation situations, an axle housing mounted bump stop ends up rotating inward toward the center of the vehicle, often missing the upper bump stop entirely (see diagram in the photo gallery). By lowering the upper bump stop, you are able to guarantee bump stop contact when and where you need it. 
Factory yellow jounce bumpers are retained and relocated by inserting it back into the bottom of the new aluminum RockJock bump stop body. This provides factory feel when the bump stops make contact. 
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) – Diesel Models
JT Gladiator – Diesel Models
 
Kit Includes:
(2) Aluminum bump stop spacers (fit right or left side)
All Required Hardware
Factory yellow jounce bumpers NOT included! (reuse stock ones, Mopar PN: 68480876AA)
 
Component Specs.:
Spacers are 3.410 in. tall (overall)
Spacers provide 2 in. bump stop spacing
Spacers are 2.470 in. O.D.
Threaded hole is 12mm-1.75 thread
 
Note:
Intended for use with our RJ-144100-101 3.5 in. lift JL Diesel Front Coil Springs or our RJ-154102-101 3.5 in. lift JT Diesel Front Coil Springs.
 
Parts List:
12mm-1.75 x 50mm Long Flanged Hex Bolt: RJ-501107-1