From the info you listed your current axle seems to be a 4,400 lb axle with 95 inches from hub face to hub face but what I am unable to totally be sure on is the distance between the spring seat centers which is important for picking out an axle that will bolt up properly. The part # 6340624-EB that you referenced matches the overall length and is a higher capacity at 5,200 lbs but it has a spring seat to seat dimension of 80 inches which you would need to measure on your axle to be sure... view full answer...
Thanks for the pictures! The Replacement Trunnion Spring Bar for Reese Weight Distribution System item # RP66009 is exactly what you need and I went ahead and attached a diagram below so you can compare the dimensions. view full answer...