i need to rebuild my rear axle. it a 1995 tahoe 4x4. i've snooped around but can't find a site to order the gears from. haynes manual is very weak at explaining how to replace them too, so i'll be looking for a service manual. also, where can i find out what the gears i have are? i want to replace all of them while i have it apart. i checked complete axles at the scrapyard today. they want $95.00 for just the empty axle. extra for the gears and cover.