Because of the Mazda sourcing, there are other resources out there for Escorts, for example:
http://www.imazda.com/forums/index.php there was an excellent how-to on the G-series unit it was in the "International Mazda Forums" area, then in the "Technical", then in the "DIY: How-To Articles" area. I KNOW this, because I saved that whole article to my C: drive, but it's no longer on the site. This is a very good site, these guys are fanatics. I don't know what happened to that how-to, it dealt with (quoting)
"This How-To will guide through a complete transmission teardown and rebuild using a 1995 Ford Probe GT G-Series transmission, an MX6/626 5th Gear and an OEM [MSP] Mazdaspeed Protégé LSD. This is not a how-to on rebuilding a broken transmission, this how-to assumes you have a good working transmission to start with.
This LSD will fit all G-series transmissions (MX3, MX6, 626, Probe GT, Protégé/MP3/MSP/P5, EGT, ZX2) the differential spline count is 28."
also from the how-to was
http://www.mazdaspd.com/resources/Trans ... ebuild.pdf