We have versions of the Timbren Axle Less systems like what you referenced for a 3,500 lb axle that have 4 inch lifts built into them like the # ASR3500S06. view full answer...
Looks like you have plenty of clearance for a larger tire and wheel setup but without being able to measure for you it's hard to say from here. Your current tire overall diameter is 21.9 inches and the width is right at 5.3 inches. Also looks like you have the standard 5 lug bolt pattern. So a 205/75-14 tire is going to give you an overall diameter of 26.3 inches and have an overall width of 7.99 inches and most likely would fit well. For that we have the Tire and Wheel combo part # AM32161... view full answer...