That's pretty quick....I could switch out one in my old dana 30 in 20 minutes.After breaking a front USA Alloy joint at Harlan,I bought a set of Bobby Longfields Super joints.So far they are holding up..Beat it in Attica(Badlands) a few weeks ago with no issues in the drivetrain.I justed replaced my rear RC springs with a new set from Rusty's last week ,all the bushings were wiped out.
I hope to post a build sheet soon.
Nick