We're going on our third year with our 14RK. We decided at the end of last year the heck with using wood or plastic blocks. This year we have already purchased the BAL Leveler 28050, with wrench included, but have not tried it out. Two years ago I spoke with BAL who stated that it was rated at 2,000 lbs., if I remember correctly.
John
2010 Sportsmen Classic 14RK; 2005 Ford F-150, 5.4L V8; "…..it is always advisable to perceive clearly our ignorance." Charles Darwin