Connor Hitch Extender - High Clearance 2" Dual Hitch Extension (GTW- 4000 lb.), 1625370 Trailer Hitch Extension PULL YOUR TRAILER AND HAVE A BIKE RACK/CARGO CARRIER AT THE SAME TIME  Accommodate your bike rack, spare tire, accessories while towing your trailer or camper without scraping anything in your setup HIGHER CLEARANCE THAN THE OTHERS, FIT YOUR BIKE RACKS, CARGO CARRIERS AND SPARE TIRES WITH EASE  6-1/2" height difference between bottom and top receiver pin holes REDUCED SWAY AND BOTTOMING OUT THAN SIMILAR PRODUCTS  7-1/2" extension from hitch to bottom receiver pin hole, tighteners recommended to reduce rattle TOP RECEIVER USED FOR ACCESSORIES ONLY  Pin hole to back of top receiver: 7" - Please check if your vehicle can accommodate - Recommended with Hitch Tighteners for a more tight fit HEAVY DUTY VERSATILITY  Fits Class III/IV 2" x 2" receivers, Max GTW: 4000 lb., Max tongue weight: 400 lb., Exceeds SAE J-684 standards for safety and durability