Word to the wise: Be very carefull using the Jammin shocks on the OCM! The up travel must be limited in the rear (check the front also) to keep the rear drive shafts (CVD's)from getting hung up in the rear diff outdrive cup slots upon landing. If allowed to hang up in the slots, your car WILL break the rear drive shaft close to the diff. Saw it happen 2x on the same race day with the same friend.