Andy in Pa
New member
Spool vs welded spiders is totally up to ones experience. I have wheeled both, and broken parts on both axles, but never the welded diff/spool. I personally feel that a welded diff is potentially weaker, assuming the welder did not take carrier flex into consideration when welding, and the tensile strength of the metal being affected by the heat of the weld. But like I said neither ever failed at the diff for me through some knarly slimy east coast wheeling.