John,
No clue about the O/D ... from what I've heard around here, there does seem to be a PITA factor involved (installation and calibration??). The 1/2-ton guys are pretty much limited to the O/D thing for their drivelines aren't as readilly adaptable as ours (closed/torque tube, etc). So what works for the 1/2-tons doesn't always work for us 3/4 and 1-ton guys. I think looking for a 4.10 center section for your HO52/72 is the far superior approach. The ODSS 1-tonners have had decent success in the past 5 years or so sourcing 4.10 gears (whole center sections) from the rock crawler gang.
Check out our Tech Tip on this subject in out Tech Tips section.
Regards and welcome to the Bolt. Check out the ODSS forum, too. There's a bunch of us in the MD/VA/SoPA area.
Regards,
John
