back half?

srt cummins

New member
I been looking at the 4-link back half kits that are 2x3 frame. Then I came across a chrome molly round tube kit. Is their a difference in them?
 
similar to a dually race truck..hence school bus's analogy.

sorry bus, it was right there and i cant pass up a bad pun LOL
CompD Mobile Device
 
Typically round tube kits are lighter, and moly ones are lighter yet, but they may be more difficult to connect into the factory frame (since the round tube relies on multiple smaller tubes for its strength rather than two main frame rails).
 
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