I understand your confusion Tom, as your LCI4.4K axles are most likely going to have the 10" Lippert Electric Trailer Brakes # LC66WD. Lippert bases their 4.4K axle on a 3,500lb axle platform while most other manufacturers base it on a larger 3" axle tube with stronger components. This is why you are seeing the 12" brake option and as RV manufacturers often change change parts on trailers based on what is available and cost this is why you will see 2 of the same trailers with different... view full answer...
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