The Replacement Topwind Black Knob Handle for Ram Jacks # TJPB-HD will measure right at 8 inches from the center of the clamp to the furthest most edge of the handle/knob.
This will also fit all Ram TJB, TJP, and TJDP Series jacks as well as our Round A-Frame Trailer Jack - Topwind - 15" Travel - 5,000 lbs # TJA-5000T-B. view full answer...
The Buyers Products Class 4 Service Body Short Hitch Receiver # 3371801053 has a measurement of 1-3/4" from the frame mount to the top of the receiver. It has a bolt hole width range of 28-7/8" to 42-7/8". view full answer...