Overview Reviews Product Description RJ6-05 Challenger Stack Adapter Pad (3”) for rolling jack. 1-1/2" drop-in diameter. Used on Challenger rolling jack models RJ6 and RJ7.5. Product Videos Custom Field Product Reviews Write a Review Write a Review × Challenger RJ6-05 Challenger Stack Adapter Pad (3") for Model RJ6 & RJ7.5 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *