RE: Epx Pro Pede shaft upgrade
Well, brief overview.
Redcat 02079 brass oil bearing
Redcat 08065 s30 hex
Redcat (or equivilent) 5x10x4 bearing(will fit inside of oil brass)
Traxxas TRA6882 (only need the two spiders with drive output)(other two will be discarded)
Traxxas 1953 shafts
Traxxas 2753 stubs
Traxxas 4628 diff adapt
The redcat outer bearing will fit inside the brass bushing for the inside of the hubs. The diff will need to be disassembled and replace the output spiders with new traxxas ones(Keep original spiders on slide pins, they mesh pefectly). It is a little tight but after a little use works great. This allows the new driveshafts to connect to redcat diff. The traxxas drive shafts need to be shortened just a little (1/8-1/4)"didn't measure, just eyeballed!"Once assembled the new axle stub is a good bit longer and just needs to be filed enough to generate a flat spot on the shaft. The redcat s30 hex can then be mounted with set screws, it eliminated the stress of hex pin. FYI, you will need all rear traxxas shafts for 4x4 full install. The Stampede has different for front. So for this custom mod, use all rear. For 2wd, just get full set of stampede 2wd front and rear and the front stubs are just axles. When the hex is applied it widens the stance of the EPX and handles great.
And yes you are right, this opens up large windows of opportunity for upgrades, they actually have true steel cvds that can be used.
"You know you had fun when you bring your RC home in a Walmart bag!"