fj40charles
SILVER Star
Good eye Bossman.
5 lug = 3500
6 lug = 5200
8 lug = 7000 +
Rule of thumb but 95% accurate
Good info Grog.
6 lug can also be 6000 axles.
5200/6000/7000 axles all use type 42 spindles/bearings Example: you could install 8 lug drums on some 5200 # axles. Yes, it would look like 7K axles, but the weight capacity is still only 5200.
The only difference between 5200/6000/7000 # axles is the wall thickness of the round tubing of the axle.
5200/6000 # axles are 3" diameter, 3/16" wall tubing.
7000 # axles are 3" diameter, 1/4" wall tubing.
for reference:
http://www.etrailer.com/Trailer-Hubs-and-Drums/Dexter/8-219-4UC3-EZ.html