1968 Oldsmobile Chassis Service Manual 442 Cutlass Supreme Holiday F-85 Vista Cruiser Delmont Delta 88 98 Toronado

H O o GO I o W m o 3 O 00

General Information, All Series 0-1 GENERAL INFORMATION & PERIODIC MAINTENANCE ALL SERIES CONTENTS OF SECTION 0 Subject Page GENERAL INFORMATION 1968 MODEL IDENTIFICATION 0-1 BODY AND STYLE NUMBERS . . . . . . 0-1 1968 MODEL DESIGNATION CHART . . . 0-2 VEHICLE IDENTIFICATION NUMBER PLATE 0-3 ENGINE UNIT NUMBER 0-3 ENGINE IDENTIFICATION CHART . . . . 0-4 MANUAL TRANSMISSION 0-5 JETAWAY TRANSMISSION 0-5 TURBO HYDRA-MATIC TRANSMISSION . 0-5 DIFFERENTIAL RATIOS . 0-6 FINAL DRIVE ASSEMBLY 0-6 1968 MODEL IDENTIFICATION A five digit number, called the car series and body style designation number, identifies any car as to series and style. Reading from left to right, the digits represent the following: The first digit indicates the General Motors Division. The second and third digits are Fisher Body Shell Designation. The third digit also is used to designate the L-6 or V-8 engine (odd numbers indicate L-6 and even, V-8 engine). The fourth and fifth digits are body style designation. EXAMPLE: 3 3 1 77 I—Club Coupe Standard F-85 Series With L-6 Engine GM Division (Oldsmobile) BODY AND STYLE NUMBERS The body and style numbers are stamped on a plate that is mounted on the left upper cowl. (Fig. 0-1) Information on this plate shows: 1. Style Number 2. Body Number 3. Trim Number 4. Paint Number (Colcr Specification) 5. Accessories 6. Time Built Code Subject Page GENERAL INFORMATION (Cont'd.) TIRE INFORMATION ............ 0-7 TIRE ROTATION 0-7 GENERAL SPECIFICATIONS 0-8 TOWING DATA 0-8 SERVICE BRAKES 0-8 BATTERY . . . 0-9 PAINT CHART 0-9 FACTORY OPTIONAL EQUIPMENT. ... 0-10 GUARDIAN MAINTENANCE CHART. . . . 0-11 PERIODIC MAINTENACE CHART 0-12 All Fisher Body numbers are prefixed by a letter or letters indicating the plant at which the body was assembled. F-85 bodies are coded as follows: LAN - Lansing BF - Fremont FRA - Framingham OS - Oshawa (Ontario, Can.) All 88 and 98 series are coded as follows: LAN - Lansing BL - Linden BA - Doraville BC - South Gate BK - Kansas City ATL - Atlanta All 98 series will be assembled at Lansing. DIVISION SERIES TIME BUIITCODE—i »ODEL YEAR—i 000 BODY BY FISHER UNIT NUMBER TRIM NUMBER- SEAT TYPE—' LAN 123456 BODY DD PAINT MOTORS CORPORATION CERTIFIES THAT THIS VEHICLE CONFORMS ( ) |FECER>,L MOTOR VEHICLE SAFETY STANI \P\ LICABLE AT TIME OFMANUFACTUF TO THE up UPPER BODY COLOR, 'OR FOLDING TOP OR ROOF COVER 1 —LOWER BODY COLOR Fig. 0-1 Body and Style Number Plate (31-86 Series) All 94 Series will be built at Lansing, Michigan and have code letters "EUC" for Body Unit Number(s) prefix. (Fig. 0-2)

0-2 General Information, All Series 1968 MODEL DESIGNATION Series F-85 33100 (L-6) 33200 (V-8) Cutlass 33500 (L-6) 33600 (V-8) Cutlass Supreme 34200 (V-8) 442 34400 (V-8) Vista-Cruiser 34800 (V-8) Delmont 88 35400 Delta 88 36400 Delta 88 Custom 36600 Ninety-Eight 38400 Ninety-Eight 38600 Toronado 39400 Body Description or Name Town Sedan Club Coupe 2-Seat Station Wagon Holiday Sedan Convertible Town Sedan Sports Coupe Holiday Coupe Holiday Sedan Town Sedan Holiday Coupe Convertible Sports Coupe Holiday Coupe Two-Seat Three-Seat Holiday Sedan Convertible Town Sedan Holiday Coupe Holiday Sedan Town Sedan Holiday Coupe Holiday Sedan Holiday Coupe Holiday Sedan Holiday Coupe Convertible Town Sedan Luxury Sedan Coupe Body) Body Style (Type 77 ) A 35 39 67 69 77 87 A < Oi Oi E- CO CO OO 67) 77 >A 87) 55 1A 65 } A 39 67 69 87 B 39 ) 69 }B 87) 39 l B 87 | B 39 ) 57 >c 67 ( C 69 ) 69 C 87 }E Chassis Designation L-6 33169 33177 33535 33539 33567 33569 33577 33587 V-8 33269 33277 33635 33639 33667 33669 33677 33687 34239 34269 34287 34467 34477 34487 34855 34865 35439 35467 35469 35487 36439 36469 36487 36639 36687 38439 38457 38467 38469 38669 39487 Sales and Scheduling Code L-6 3169 3177 3535 3539 3567 3569 3577 3587 V-8 3269 3277 3635 3639 3667 3669 3677 3687 4239 4269 4287 4467 4477 4487 4855 4865 5439 5467 5469 5487 6439 6469 6487 6639 6687 8439 8457 8467 8469 8669 9487

General Information, All Series 0-3 .,„-, MODEL YEAR—i — BODY TYPE BODY BY FISHER ST 468-39487 1 TR Q90B — UNIT NUMBER \ i— GENEF|AL O IFEC TRIM NUMBER — EF THAT THIS VEHICLE CONFORMS SEAT TYPE—I EUC 123456 BODY PAINT MOTORS CORPORATION CERTIFIES MOTOR VEHICLE SAFETY STAN APPLICABLE AT TIME OF MANUFACTURE 0 ALL /TZT TO THE J ALL />-—v DARDSf C ) RE UPPER BODY COLOR, "OR FOLDING TOP OR ROOF COVER — LOWER BODY COLOR Fig. 0-2 Body and Style Numbers (9400 Series) VEHICLE IDENTIFICATION NUMBER PLATE The 1968 vehicle identification number plate is located in the left upper instrument panel. The numbers are visible from the outside of the car. (Fig. 0-3) Each unit number is prefixed by a letter and six numbers and have designations as shown in Fig. 0-4. Fig. 0-3 Vehicle Identification Number Plate 3 3 3 7 7 100001 Plant Sequential Number -*Plant (Lansing) -Model Year (1968) -Body Type (Coupe) -Engine Type (Odd No. - L-6; Even No. - V-8) -Series (Std. F-85) Refer to Model Designation Chart -Division (Oldsmobile) •Series 3100 through 5400 through 6600 8400 through 9400 3100 through 4400 Letter (Number) 1 Plant Lansing, Michigan Fremont, California Framingham, Mass. (Early Production) Linden, New Jersey Lansing, Michigan Kansas City, Kansas Linden, New Jersey Southgate, California Atlanta, Georgia Lansing, Michigan Oshawa, Canada Fig. 0-4 Vehicle Identification Plate Data ENGINE UNIT NUMBER (For Manufacturing and Service Use) The L-6 Engine has a DATE-CODE stamped on the right side of the engine block, directly to the rear of the distributor. (Fig. 0-5) The date code consists of a_ letter, four digits and two letters. The first letter stands for source identification. The first two digits show the month and the second two digits show the day the unit was built. The last two letters show transmission or option usage. EX.: 0 7 12 VE T_ Jetaway Equipped 12 - Day of Month July - Month Source Code (Flint) V-8 engines have the code tape installed directly above the engine unit number which is stamped on the engine oil fill tube. (Fig. 0-6) The following chart shows engine usage and identification. Fig. 0-5 L-6 Engine Unit Number Location Fig. 0-6 V-8 Engine Unit Number and Code Location

ENGINE IDENTIFICATION CHART Model Standard L6 3100 Standard V8 3200 Cutlass L6 3500 Cutlass V8 3600 Cutlass Supreme 4200 442 4400 Vista-Cruiser 4800 Delmont 88 350 Cu. In. 5400 Delmont 88 455 Cu. In. 5400 Delta 88 6400 Delta 88 Custom 6600 Ninety-Eight 8400-8600 Toronado 9400 ENGINE USAGE Trans. SMT AMT SMT AMT SMT AMT SMT AMT SMT AMT SMT AMT SMT AMT SMT AMT SMT AMT SMT AMT SMT AMT ALL ALL 250 Cu. In. 8.50 C R . 1-Barrel L6 Action Line 6 S S S S 350 Cu. In. 9.00 C R . 2-Barrel V8 Jetfire S S S S O o s s s s 350 Cu. In. 10.25 C R . 4-Barrel V8 Jetfire O O O O s s o o o 400 Cu. In. 9.00 C R . 2-Barrel V8 Rocket 400 O O 400 Cu. In. 10.50 C R . 4-Barrel V8 4-4-2 S S O 455 Cu. In. 9.00 C R . 2-Barrel V8 Super Rocket S S S S S S 455 Cu. In. 10.25 C R . 2-Barrel V8 Super Rocket O NCO NCO 455 Cu. In. 10.25 C R . 4-Barrel V8 Super Rocket O O O S s •IDENTIFICATION With C-60 Y-72 VB YF VB VF With- out C-60 Y-72 VA VE VA VE Low Comp. 2 Barrel QI QA & QB QI QA & QB QI QA & QB OL QI QL TL TB& TD UJ UC & UD UJ UC & UD UJ UC& UD High Comp. 4 Barrel QV ON & QP QV QN & QP QV QN & QP QW& QU OR f OS r QT QV QR& QS TN UN & UO UN & UO UN & UO UN & UO US, UT, UW& UV High Comp. 2 Barrel UA & UB JA & UB JA & UB CD 2 C/3 CD S - Standard O - Option EXPORT OPTION NCO - No Charge Option •Refer to Fig. 0-6. L-6 Export Option (7.25) Compression Ratio (CR) V-8 Export Option (8.3) Compression Ratio (CR) Available in 2 or 4 Barrel.

General Information, All Series 0-5 MANUAL TRANSMISSION The three speed standard transmission has 1" high identification code letters on the right-hand side of case. The three speed heavy duty transmission has 2" high identification code letters on the right-hand side of extension housing. Fig. 0-7 shows manual transmission identification. TYPE 3-Speed 3-Speed Heavy Duty 4-Speed SERIES 3100, 3500 L-6 Engine 3200, 3600, 4200, 4800 5400, 6400 Column Shift 4400 Floor Shift 3200, 3600, 4200 Floor Shift (Except Station Wagons) 3200, 3600, 4200, 4400, 4800 (wide ratio) 3200, 3600, 4200, 4400 (close ratio) CODE R. H. SIDE OF CASE QP RJ DA DB DB HP HF OPTION CODE M-14 M-20 M-21 Fig. 0-7 Manual Transmission Code Numbers JETAWAY TRANSMISSION Transmission MODEL and CODE NUMBERS are stamped on the servo cover as shown in Fig. 0-9. EXAMPLE: .68 LC 001. '—First Day of Production Model LC (L-6 Usage) 1968 Model Year JETAWAY MODEL LC MM MT USAGE All 6 Cyl. V-8 - 32, 36 and 4200 Series V-8 - 5400 Series (350 cu. in.) Fig. 0-8 Jetaway Transmission Usage TURBO HYDRA-MATIC TRANSMISSION The Turbo Hydra-Matic serial number for all series except 9400 is stamped on a plate located on the right side of the case. (Fig. 0-11). The Turbo Hydra-Matic serial number for 9400 series is stamped on a plate located on the left-hand side of the converter housing. (Fig. 0-12) TURBO HYDRA-MATIC USAGE CHART Turbo Hydra-Matic Model OA OB OC OF OG OG OH OJ OL OM OP Model Vista Cruiser Ninety-Eight* Delta & Delmont Delmont F-85 Cutlass 442 and L77 4400 - L65 442 Toronado Police Option & Heavy Duty Toronado Vista Cruiser** Engine 350 cu. in. - 2 Bbl. Low and 4 Bbl. High Compression 455 cu. in. - 4 Bbl. High Compression 455 cu. in. - 2 Bbl. Low and High Compression 350 cu. in. - 2 Bbl. Low and 4 Bbl. High Compression 400 cu. in. - 4 Bbl. High Compression 400 cu. in. - 4 Bbl. High Compression 400 cu. in. - 2 Bbl. Low Compression 455 cu. in. - 4 Bbl. High Compression 455 cu. in. - 4 Bbl. High Compression 455 cu. in. - 4 Bbl. High Compression (Performance Option) 400 cu. in. - 2 Bbl. Low Compression 4 Bbl. High Compression * Engine and Transmission Optional Delmont (455 cu. in.) and Delta Series ** Optional Engine Fig. 0-10 Turbo Hydra-Matic Usage Chart Fig. 0-11 Turbo Hydra-Matic Serial Number Plate Location (Except 9400) TURBO HYDRA®MAT SA Fig. 0-9 Jetaway Model and Date Code Location Fig. 0-12 Turbo Hydra-Matic Serial Number Plate Location (9400)

0-6 General Information, All Series DIFFERENTIAL RATIOS The differential ratio code letters (1/4" high) are stamped on the right rear inboard side of the axle housing tube. (Fig. 0-13) CODE LETTERS APPROX. 1/4" HIGH STAMPED IN THIS AREA Fig. 0-13 Axle Ratio Codes (3100-8600 Series) Letters, for standard, Anti-Spin and final drive differentials, indicating corresponding ratio for each series are shown in Fig. 0-14. FINAL DRIVE ASSEMBLY (Differential) The ratio and date code is stamped on the flange near the right hand spreader hole (Fig. 0-15). RATIO CODE: T = 3.07 DATE CODE: The code letter for month and number(s) for actual date. A - Jan. D - April H - July L - Oct. B - Feb. E - May J - Aug. M - Nov. C - March G - June K - Sept. N - Dec. EXAMPLE: T = 3.07 Ratio Code M10 = Built November 10 SUPPORTS Fig. 0-15 Final Drive Ratio and Date Code 3100 THRU 4400 (TYPE "0") 400 CU. IN. 3100 THRU 4400 (TYPE "C") 4800 SERIES (TYPE "0") ONLY 5400 SERIES (350 CU. IN.) 5400 (455 CU. IN.) 64-6600 SERIES *54(455 CU. IN.) & 6400 ONLY 84-8600 SERIES TORONADO GEAR RATIO 2:56 2:78 3:08 3:23 3:42 3:91 4:33 2:56 2:73 3:07 3:31 2:78 3:08 3:23 2:78 3:08 3:23 2:56 2:73 3:08 2:56 2:73 3:08 3:07 NO. GEAR TEETH 41:16 39:14 40:13 42:13 41:12 43:11 39:09 41:16 41:15 43:14 43:13 39:14 40:13 42:13 39:14 40:13 42:13 41:16 41:15 40:13 41:16 41:15 40:13 43:14 CODE LETTERS STD. TYPE DIFFERENTIAL STD. EQUIP. R2 SA SC SE TL TN R8 RA RC RE TA SM SO RA RC RE QC QA QE .QQ QK QM T WITH J-52, J-55 R6 S2 S4 S6 S8 T2 TR TT T4 T6 #QQ #QK #QM QC QA QE WITH Y-75 *QS *QY CODE LETTERS ANTI-SPIN DIFFERENTIAL STD. EQUIP. R3 SB SD SF TM TO TW R9 RB RD RF TB SN SP RB RD RF QD QB QF QR QL QN WITH J-52, J-55 R7 S3 S5 S7 S9 T3 TY TH TJ T5 T7 #QR #QL #QN QD QB QF WITH Y-75 *QT *QZ WITH W-30 TW Fig. 0-14 Differential Usage and Codes

General Information, All Series 0-7 TIRE INFORMATION RECOMMENDED COOL TIRE INFLATION PRESSURES - POUNDS PER SQUARE INCH All Models - Except Station Wagons, 442 and 94 Series Station Wagons & V.C. 442 9400 8 Ply Tires 88-98 All Loads Front 24 24 26 24 24 Rear 24 32 26 22 26 When the car is driven a few miles, tires warm up causing pressure increase. If tire pressures are checked when tires are warm, they may be up to 6 pounds higher than the pressures shown on the chart. For continuous high speed operation (over 75 mph) increase tire pressure (cool) 4 pounds over the above recommended inflation pressures, up to a maximum of 32 pounds for 4-ply rating tires, or 40 pounds for 8-ply rating tires. Over inflation at light loads will have an ad- verse effect on the car ride and tire tread wear pattern. Under inflation will promote heat and abnormal wear. When towing trailers, the allowable passenger and cargo load must be reduced by an amount equivalent to the trailer tongue load on the trailer hitch. Vehicles with luggage racks do not have a load limit greater than specified in the tire inflation pressure table. VEHICLE LOAD CAPACITY AND DISTRIBUTION All Models - Except Station Wagons Station Wagons 2 Seat Station Wagons 3 Seat Full 1100 Lbs. Total: 1200 Lbs. Total: 1200 Lbs. Total: Load Capacity Is: 3 Passengers front seat 3 Passengers rear seat 200 Lbs. luggage 3 Passengers front seat 3 Passengers rear seat 300 Lbs. luggage 3 Passengers front seat 3 Passengers second seat 2 Passengers third seat or 300 Lbs. luggage TIRE ROTATION To equalize wear, it is recommended that the four road tires be rotated every 6,000 miles, see Fig. 0-16. It is not necessary to rotate the spare. Upon rotation, tire pressures must be adjusted (front and rear) in accordance with the recom- mendations in the tire inflation pressure table. Also keep tires balanced, the front wheels aligned, and periodically examine tires for unusual wear. Left Rear Spare Left Front Right Rear Right Front Fig. 0-16 Tire Rotation TIRE SIZES SERIES F-85 Exc. Vista-Cruiser & 442 Std. Size & 8 Ply Option Radial Ply Option Vista-Cruiser Std. Size & 8 Ply Option Radial Ply Option 442 Std. Size (Nylon) 4 Ply Option (Nylon) Radial Ply Option Exc. with 4 Bbl. Engine Delmont & Delta Without Disc Brakes Std. Size Radial Ply Option With Disc Brakes Std. Size & 8 Ply Option Radial Ply Option Ninety-Eight Without Disc Brakes Std. Size Radial Ply Option With Disc Brakes Std. Size & 8 Ply Option Radial Ply Option Toronado Std. Size Radial Ply Option TIRE SIZE 7.75 x 14 205R14 8.25 x 14 205R14 F70 x 14 7.75 x 14 205R14 8.55 x 14 225R15 8.45 x 15 225R15 8.85 x 14 225R15 8.85 x 15 225R15 8.85 x 15 235R15 All Std. Tires are 2-Ply - 4-Ply Rating.

1968 Oldsmobile Chassis Service Manual 442 Cutlass Supreme Holiday F-85 Vista Cruiser Delmont Delta 88 98 Toronado

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