my first 742 case rebuild, need alittle advice please

bit, but thanks for all your and others who posted here help, but looking at your rebuild photo's you have done many of these before, what brand of gears do you prefer?[/QUOTE]

Chrysler 8-3/4 gears are limited in selection -- for the 742 case if you want to stick with the 3.23 ratio Yukon gear would be your best bet --$278.00 US from Summit Racing .
other brands are Motive , US Gear ,, Richmond ( now owned by Motive Gear ) but gear ratios are limited depending on the case used.
there are other offshore brands available (Nitro etc. ) but i stay away from them .