1928 Cadillac - GM Heritage Center

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TRANSMISSION AND UNIVERSAL JOINT 98-A Subject 4.75:1 gear ratio. 5.08:1 gear ratio. 32 x 6.20 (6.30/20) TIRES 4.17:1 gear ratio. 4.54:1 gear ratio.. 4.916:1 gear ratio. 32 x 6.00 (6.00/20) TIRES 4.07:1 gear ratio 4.54:1 gear ratio. 4.916:1 gear ratio. 31 x 6.20 (6.50/19) TIRES 4.07:1 gear ratio 4.54:1 gear ratio.. <strong>Cadillac</strong> 341 LaSalle 303-328 21 876258 j See note 1. Specifications Remarks Driving Gear Driven Gear See notes 1, 2, 3 and 4 No. of Teeth No. of Teeth' Part Number Rolling radius 7 878207 22 876259 B 7 848176 14¾ to 15¾ in. 22 848124 7 878207 21 878208 B 7 848176 .15¾ to 16¾ in. 21 848123 848176 1 15¾ to 15¾ in. 23 848125 J 878207 B 22 876259 848176 .l$Ktol6ftin. 22 848124 j 303 876267 ] 303 ! 18 876351 [ 303' 18 876374 J 15¾ to 16¾ in. 303 874375 \ 15Atol6Ain. 20 877088 J 303 874375 1 303 1 22 303 2 876226 [ 22 876259 j 16 A to 16 in See note 1. 303 874375 303 1 18 876351 303 2 18 876374 15¾ to 16¾ in. 303 874375 303 1 21 874374 . 14H to 15 A «n. 303 2 21 876258 See note 1. 303 874375 1 303 1 22 876226 [ 15 A to 16 in. 303 2 22 876259 J See note 1. 303 874375 1 303 1 303 2 21 874374 \ 16 to 1 6 ¾ in - 328 328 328 328 328 18 19 18 21 20 848170 \ 15 A to 16 in. 876374 J 848176 \ 14¾ to 15¾¾. 848178 J 848176 1 15¾½½¾¾. 876374 J See note 3. 848176 1 14Htol5Ain. 848123 J 848176 \ 15Atol6Ain. 848122 See note 3. February, 1929
98-B TRANSMISSION AND UNIVERSAL JOINT Subject <strong>Cadillac</strong> 341 LaSalle 303-328 Specifications Remarks Driving Gear No of Teeth Driven Gear No of Teeth See notes 1, 2, 3 and 4 Part Number Rolling Radius 4.916:1 gear ratio. 328 23 848176 \ 14?£tol5Ai: in. 848125 J 328 22 848176 | 15Atol6in 848124 See note 3. UNIVERSAL JOINT Ball and socket joint, adjustment 303 328 Remove gaskets until friction can be felt in joint, then add one gasket Ball member bushing, assembly Clearance between crosses and bushings Clearance between yoke and ball member bushing •. 303 303 303 328 328 328 Oil grooves must cross on right side and open toward top and bottom of ball New limits, .0025-.004 in. Worn limit, not over .006 in New limits, .005-.007 in. Worn limit, not over .010 in 1. Speedometer Drive and Driven Gears Two types of driven gears are listed for LaSalle 303 cars. The first type gears (874374-876226) are for transmissions before unit 2-5781, and the second type gears (876258-876259) are for transmissions after this unit number. Beginning with transmission unit 2-5781, the speedome ter cable is smaller in diameter, so that a gear with a smaller hole is required. All driving gears have seven teeth but differ in lead and pitch. Driven gears with 18 and 22 teeth give slightly fast readings with 32 x 6.00 tires and slightly slow readings with 32 x 6.20 tires. 2. Installation of Cable Flange On 341-A and 303 cars the distance between the centers of the driving gear and driven gear is the same for all combinations. On 341-B and 328 cars, two different center distances are used, one for pinions with 16 to 19 teeth and one for pinions with 20 to 23 teeth. In order to make this possible, the end of the speedometer cable is eccentric. In one position, the cable gives the correct center distance for pinions with 16 to 19 teeth. When revolved 180° the cable gives the correct center distance for pinions with 20 to 23 teeth. The flange of the cable end has the figures "16-19" on one side and "20-23" on the other side. The cable should always be turned so that the figures corresponding to the number of teeth on the pinion are on top. 3. United States Tires with Narrow Face Driven gears 876374, 848122 and 848124 are for use only on La Salle 328 cars when narrow tread United States Tires are used. 4. Determining Correct Speedometer Gear by Rolling Radius There are occasionally owners who desire to install on their cars tires of a different make from standard, or tires of special sizes. Any change in the make or sizes of the tires affects the speedometer reading and, in many cases, a new speedometer gear will be necessary. It is impossible to specify the correct gear merely from the nominal size of the tire. Tires of various makes differ. It is necessary to know the "rolling radius" in order to determine the correct speedometer gear. To find the rolling radius of any tire, simply measure the distance from the center of the hub cap of a rear wheel to the pavement. Before doing this, however, make sure that the tires are inflated to the normal pressure of 40 pounds and that the car is weighed down to its normal load. Once the rolling radius is known, the correct gear can be determined by referring to the specification table. February. 1929
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f CADILLAC MOTOR CAR COMPANY & I \
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I THE X E W (' A DILL A C 9 etaiL o
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THE NEW CADILLAC A SURPASSING POWER
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TIIK NEW CADILLAC KIGIDITY OF CHANK
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T1IK NEW CADILLAC DETAILS OF OOXHT1
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THE NEW CADILLAC DETAILS OK COXSTHC
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THE XKW CADILLAC arranged in an ind
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THE N li W (.UHLLAC e ull floating
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KKI'AII.S OK COXSTK (CTION PART CAD
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THK XKW CADILLAC ie long wheelba.se
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DETAILS III' COXSTUI'CTION Wider, d
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THE NEW CADILLAC out" under the rea
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THE NEW CADILLAC in. narrow rim wit
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Copyright 1*>2S bv adiliac Motor Ca
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CHAPTER V—Care of Tires 63 Inflat
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10 CADILLAC OPERATORS MANUAL OPERAT
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14 CADILLAC OPERATOR'S MANUAL OPERA
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30 CADILLAC OPERATOR'S MANUAL The T
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34 CADILLAC OPERATOR'S MANUAL Infla
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PART II LUBRICATION AND CARE
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50 CADILLAC OPERATOR'S MANUAL LUBRI
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54 CADILLAC OPERATOR'S MANUAL LUBRI
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LUBRICATION AND CARE 59 Wheels; 1,
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62 CADILLAC OPERATOR'S MANUAL Do no
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CHAPTER VI Storing Car IF THE car i
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GENERAL INFORMATION 71 CHAPTER I En
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74 CADILLAC OPERATOR'S MANUAL GENER
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GENERAL INFORMATION 79 Water Circul
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GENERAL INFORMATION 83 u .">o I*. T
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86 CADILLAC OPERATOR'S MANUAL it ca
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90 CADILLAC OPERATOR'S MANUAL the c
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94 CADILLAC OPERATOR'S MANUAL (Fig.
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Description CHAPTER VI Steering Gea
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102 CADILLAC OPERATOR'S MANUAL CHAP
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106 CADILLAC OPERATOR'S MANUAL GENE
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lid CADILLAC OPERATOR'S MANUAL GENE
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GENERAL INFORM ATION 115 Type of en
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118 CADILLAC OPERATOR'S MANUAL Solu
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CADILLAC Operator's Manual CADILLAC
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CHAPTER I Cadillac Service THE owne
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CADILLAC OPERATOR'S MANUAL best pos
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20 CADILLAC OPERATOR'S MANUAL Speed
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24 CADILLAC OPERATOR'S MANUAL EQUIP
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CADILLAC OPERATOR'S MANUAL EQUIPMEN
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V | HfScS OWNE -R'^ ADDR F-crc ENGH
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LUBRICATION 45 44 CADILLAC OPERATOR
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48 CADILLAC OPERATOR'S MANUAL Winte
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52 CADILLAC OPERATOR'S MANUAL GENER
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STORING CAR 57 CHAPTER VII Storing
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60 CADILLAC OPERATOR'S MANUAL porta
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.19?fl Shop Manual Cad'llac 3^1-.^3
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Foreword HPHIS Shop Manual is a boo
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4 CONTENTS Engine Specifications 63
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Front Axle Subject Cadillac 341 LaS
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FRONT AXLE 9 Punch 1/8-inch hole in
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FRONT AXLE 11 r~\ Front —A— f~\
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Rear Axle and Torsion Tube Subject
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REAR AXLE AND TORSION TUBE 15 Drive
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REAR AXLE AND TORSION TUBE 17 To di
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Note: Adjustment of connections,whe
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Note: Adjustment of connections, wh
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24 BRAKES Note: Unless brake connec
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Note: Adjustment of connections mus
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Note: Adjustment of connections mus
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Clutch Subject Cadillac 341 1-aSall
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CLUTCH 37 Rear driving plate Center
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CLUTCH 39 Rod to clutch pedal Ball
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42 COOLING SYSTEM Filler Assemble w
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44 COOLING SYSTEM 4. Flushing Cooli
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Electrical System Subject Cadillac
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ELECTRICAL SYSTEM 49 Subject Cadill
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ELECTRICAL SYSTEM 51 Subject Cadill
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ELECTRICAL 53 Fig.l Top view with h
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ELECTRICAL 55 Fig. 2 Electrolock fr
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CIRCUIT BREAKER INSTRUMENT PANEL LA
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CUT-OUT RELAY CIRCUIT BREAKERS LOCK
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A-T#JL-6-B-3CP8ULB B-5TOP-6-8-2ICP.
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Intake header shield (not used on L
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66 ENGINE To remove chain, remove c
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68 ENGINE Fig. 1 Numbering of conne
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70 ENGINE Use new wood plugs when r
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72 ENGINE dicated with a dial indic
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ENGINE 100-600 pounds press fit Pis
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76 FRAME Plate 41. Diagrams of Cadi
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78 GASOLINE SYSTEM Automatic thrott
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80 GASOLINE SYSTEM Fig. 1 Cadillac
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82 LIGHTING SYSTEM One-half of dist
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IS p l-h n •*» 0\ r ^- o rt- **
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Each "G" indicates a grease-gun con
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Springs Subject Cadillac 341 LaSall
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Subject Cadillac 341 Steering Gear
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STEERING GEAR 93 Clamp bolt Turn nu
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High and intermediate sliding coupl
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98 TRANSMISSION AND UNIVERSAL JOINT
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Sliding coupling with external teet
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2 re
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Shifter forks Shifter shaft and int
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Wheels, Rims and Tires Subject Cadi
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( i tJ^, a (.,(,1,11,1¼ BO.l •ft
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Contents DM 01 - 6 c P p^ NOTE: The
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Introduction 0Q*° ! Arrangements o
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Sf f\ £> ^ FRONT AXLE **J (¾ Subj
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10 FRONT AXLE Adjustable lever Knuc
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12 FRONT AXLE m^ e- -e- 1/32 inch I
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14 REAR AXLE AND TORSION TUBE 1. Lu
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16 REAR AXLE AND TORSION TUBE Drive
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c c Subject FOOT BRAKES Front and R
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BRAKES 21 Subject Cadillac 341 LaSe
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BRAKES 23 Note: [links Unless brake
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BRAKES 25 Lever on rocker shaft Cen
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.^ ,., i—- m m Equalizer ba 5 Adj
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.""> Use upper hole for 14-inch fro
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BRAKES 31 Note: Unless brake connec
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BRAKES 33 Note: Unless brake connec
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36 CLUTCH Subject Cadillac 341 LaSa
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38 CLUTCH /Test by hand, not by foo
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Cooling System Subject Cadillac 341
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COOLING SYSTEM 43 Subject Cadillac
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COOLING SYSTEM 45 Fig. 2 Enlarged h
Page 261 and 262: 48 ELECTRICAL Fig. 1 Sectional view
Page 263 and 264: 50 ELECTRICAL Spring adjusting scre
Page 265 and 266: 52 ELECTRICAL SYSTEM 5. Adding Wate
Page 267 and 268: 54 ELECTRICAL Tool I0i Fig. 1 Testi
Page 269 and 270: Adjustment of starter switch. 1 Scr
Page 271 and 272: oo A-TML-64-3 CP BULB B-STOH-M-SIC*
Page 273 and 274: s A-Wi.-«-s-sc.PNx» B-noP-64-ncit
Page 275 and 276: Engine Subject Cadillac 341 LaSalle
Page 277 and 278: ENGINE 65 Subject Cadillac 341 LaSa
Page 279 and 280: ENGINE 67 Subject Cadillac 341 USal
Page 281 and 282: ENGINE 69 Subject Cadillac 341 USal
Page 283 and 284: c Subject INLET VALVES Clearance be
Page 285 and 286: C) ENGINE 73 By-pass adjusting scre
Page 287 and 288: Frame Subject Cadillac 341 LaSalle
Page 289 and 290: Gasoline System Subject Cadillac 34
Page 291 and 292: LaSalle inlet connection and strain
Page 293 and 294: Lighting System Subject Cadillac 34
Page 295 and 296: ( Lubrication Subject Cadillac 341
Page 297 and 298: \ rs ^ Rear shackles Brake shafts u
Page 299 and 300: \ ^N Each "G" indicates a grease-gu
Page 301 and 302: 90 SPRINGS AND SHOCK ABSORBERS -Bol
Page 303 and 304: 90B SPRINGS AND SHOCK ABSORBERS Sub
Page 305 and 306: 92 STEERING GEAR First-type screw.
Page 307 and 308: 94 STEERING GEAR Steering gear arm
Page 309 and 310: High and intermediate sliding coupl
Page 311: 98 TRANSMISSION AND UNIVERSAL JOINT
Page 315 and 316: 8 H yo > z Cfl *•« Cfl Cfl e-i O
Page 317 and 318: pq Drum engaged B with cone and syn
Page 319 and 320: Shifter forks Shifter shaft igh and
Page 321 and 322: Wheels, Rims and Tires Subject Cadi
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1928 Cadillac - GM Heritage Center

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