THREE SPEED TRANSMISSION 7 8 nsr g n GEARSHIFT CONTROL ASSEMBLY 1 Shift the COVQY Shift h ad and fork assemblies in Whenever excessive looseness of the floor shift tower tr 1d t t Center positmns hg 10A is experienced or at any time a shift mechanism is 2 Shiit tmHSmiSSiOn Synchllomzer Sleeves to neutral disassembled for service the following information may posmfms and Carefully mstau COvQr gasket all be used to select the proper shim pack for the shift fork assembly to case Be sure forks align with tower and floor pan their synchronizer sleeve grooves and selector finger with shifter heads Shim Stack Selection 3 Tighten cover bolts to specified torque Remove the shift housing trim cover on Corsa models 4 Remove filler plug and fill transmission to level of by removing the two cross recess head screws and the filler plug hole with lubricant specified in Section 0 shift lever knob Provide access to the shift tower by 1 2 3 4 5 8 9 IO 1 1 12 13 a i Q Ae A We H r i eh r7lr8li Q rr 3 A rr r 4 5J U ll I rf Br r 25 26 9 OBLV r 32 33 34 35 as 37 38 20 2l 2 2 213 A tt f 67 X V We 0 i if Je l l i S 57 0 e 7 l l r r as S Z 72 l L V i 2 582 i r T T 5960 if S etp t K5 rr l i r l l 55 56 6l 62 A rs li tr 53 54 3 r r it it 52 lr l 5051 63 xl A 48 49 r 46 47 64 F rw tl434445 7 AL 4 42 65 K I 0 qa Fig llA 3 Speed Exploded l Woodruff Key l9 Retainer E Ring 37 Gasket 55 lst Speed Blocker Ring 2 Countershaft 20 2nd Speed Gear 38 Clutch Gear Retainer 56 lst Speed Gear 3 Thrust Washer 2l 2nd Speed Blocker Ring 39 Mainshaft 57 lst St Reverse Shift Fork 4 Needle Washer 22 2 3 Synchronizer Sleeve 40 Snap Ring Bearing to Shaft 58 Interlock Ball 5 Countergear 23 Synchronizer Key Retainer 4l Retainer Bolt 59 Interlock Ball 8 Needle Washer 24 Synchronizer Keys 42 Retainer Strap 60 lst Reverse Shift Rail 9 Thrust Washer 25 Synchronizer Hub 43 Mainshaft Rear Bearing 6l Detent Ball l0 Filler Plug 26 Synchronizer Key Retainer 44 Bearing Retainer 62 Detent Spring ll Case 27 Snap Ring 45 Snap Ring Bearing to Retainer 63 lst 8 Reverse Shifter Head l2 Shift Selector 28 3rd Speed Blocker Ring 46 Spring Washer 64 Roll Pin Sh fr 29 Clutch Gear 47 Thrust Washer 65 Gasket 3 ge 30 Pilot Bearings 48 Reverse Gear 66 Side Cover 4 Need e Bearings 3l Snap Ring 49 Snap Ring 67 2nd 3rd Shift Fork 5 Weedrurrc Ke 32 Shifter Finger 50 lst Reverse Synch Sleeve 68 2nd 3rd Shift Rail 6 Reverse gd er ghmcr 33 Screws L Washers 5l Synchronizer Key Retainer 69 Detent Ball 7 Thrusr Wesher 34 Clutch Gear Bearing 52 Synchronizer Keys 70 Detent Spring T Gnged 35 Snap Ring Bearing to Gear 53 Synchromzer Hub 7l 2nd 3rd Shifter Head 18 Reverse Idler Gem 36 Snap Ring Bearing to Case 54 Synchronizer Key Retainer 72 Rall Pin coavm snap Mmuxr suvptmewr