P P r t r r iI Fig 6C 16 Removing Pinion From Carrier Inspection r Refer to figure 6C 17 1 Inspect all bearing cups races and rollers for scoring chipping or evidence of excessive wear Inspect large end of rollers for wear This is where wear is most evident on taper roller bearings NOTE The rear axle pinion bearings are of the pre loaded type and the natural wear pattern is a frosted condition with occasional slight scratches on races or rollers This does not indicate a defective bearing 2 On automatic transmission axles inspect oil seal in stator support and at converter hub for evidence of wear or damage 3 Inspect pinion splines internal or external for evidence of excessive wear 4 Inspect ring gear and pinion teeth for scoring cracking or chipping 5 Check fit of differential side gears in case 6 Check fit of side gear and U joint shaft splines 7 Inspect differential pinion shaft for scoring or evidence of excessive wear 8 Inspect differential carrier for cracks or crossed threads Repairs Manual and Automatic Transmission Axles The following repair operations apply to both manual and automatic transmission differential carriers Those repairs to components peculiar only to the manual transmission carrier or automatic transmission differential carrier follow i Fig 6C 1 8 Removing Pinion Bearings with J 8331 Plates and J 358 1 Holder Pinion and or Bearing Replacement Including Pinion Depth Shim Determination If for any reason it is necessary to replace pinion bearings and or the ring gear and pinion it is necessary to re establish the pinion mounting distance as described herein 1 To remove the pinion front and rear bearings place the pinion in a press and using J 8331 puller plate in conjunction with J 358 1 holder press bearings from pinion fig 6C 18 It will be noted that shim s are used between the pinion rear bearing and pinion 2 To determine the shim thickness to be used between pinion rear bearing and pinion gear proceed as follows a With the differential carrier mounted as illustrated in Figure 6C 19 place pinion rear bearing to be used in assembly in carrier and rotate several times to be sure the bearing is seated b Insert adapter plug J 6266 25 into bore of stator shaft or clutch bearing shaft then place gauge plate J 6266 5 on rear bearing and insert clamp bolt thru gauge plate and adapter plug holes and lightly tighten nut Holding adapter plug J 6266 25 shift gauge plate fore and aft and then side to side to feel when clamp screw is as nearly perfectly centered in the adapter plug bore as possible GORVAIR SHOP MANUAL