General Motors option code
M40
M40: a General Motors factory option code reused for more than one part across 1966–1977 and 7 models — see the table for what it named each year, with installs and price where a source states them.
General Motors reused this code for more than one part over the years — read the "as named that year" column for what it meant on each row rather than assuming one meaning throughout.
7 models · 12 model years · 14 sources
Every sourced appearance
| Year | Model | As named that year | Price | Installs |
|---|---|---|---|---|
| 1966 | Oldsmobile Starfire | Transmission, Turbo Hydra-Matic RPO | $236.97 | Unknown |
| 1967 | Chevrolet Chevelle and Malibu SS | Turbo Hydra-Matic RPO | $231.35 | 13,272 Reported |
| 1967 | Chevrolet El Camino SS | Turbo Hydra-Matic, 396 engines only (row annotated 13680, 07/67) RPO | $231.35 | Unknown |
| 1967 | Oldsmobile Cutlass, 4-4-2 and Hurst/Olds | Transmission, Turbo Hydra-Matic (with L78; required with L66) RPO | $236.97 | Unknown |
| 1968 | Chevrolet Chevelle and Malibu SS | Turbo Hydra-Matic, SS 396 only RPO | $237 | 21,539 Reported |
| 1968 | Chevrolet Chevy II and Nova | Turbo Hydra-Matic RPO | $237 | Unknown |
| 1968 | Oldsmobile Cutlass, 4-4-2 and Hurst/Olds | Transmission, Turbo Hydra-Matic (included in L65) RPO | $236.97 | Unknown |
| 1969 | Chevrolet Chevelle and Malibu SS | Three Speed Automatic Transmission, TH400 RPO | $221.80 | 32,031 Reported |
| 1969 | Oldsmobile Cutlass, 4-4-2 and Hurst/Olds | Transmission, Turbo Hydra-matic 400 RPO | $227.04 | Unknown |
| 1970 | Chevrolet Chevelle and Malibu SS | 3-Speed Automatic Transmission, TH400 (LS3, L34, LS6, & LS6) (Seen on several LS6 Chevelles) RPO | $221.80 | 43,748 Reported |
| 1970 | Oldsmobile Cutlass, 4-4-2 and Hurst/Olds | Transmission, Turbo Hydra-matic 400 RPO | $227.04 | Unknown |
| 1970 | Pontiac Firebird and Trans Am | Turbo Hydra-matic Transmission (sales code 351) RPO/UPC | $227.04 | Unknown |
| 1971 | Chevrolet Chevelle and Malibu SS | Turbo Hydra-Matic 400 RPO | $237.60 | 21,333 Reported |
| 1971 | Chevrolet Chevy II and Nova | Turbo Hydra-matic (V8 models) RPO | $205.95 | Unknown |
| 1971 | Oldsmobile Cutlass, 4-4-2 and Hurst/Olds | Transmission, Turbo Hydra-matic 400 RPO | $242.88 | Unknown |
| 1971 | Pontiac Firebird and Trans Am | 3-Speed Turbo Hydra-matic Transmission (sales code 35L) RPO/UPC | $201.48 | Unknown |
| 1972 | Chevrolet Chevelle and Malibu SS | Turbo Hydra-Matic 400 RPO | $231 | 21,427 Reported |
| 1972 | Chevrolet Chevy II and Nova | Turbo Hydra-matic (V8 only) RPO | $211.20 | Unknown |
| 1972 | Pontiac Firebird and Trans Am | Turbo Hydra-matic Transmission (sales code 35L), Esprit, Formula without 34D, 34H RPO/UPC | $236 | Unknown |
| 1973 | Chevrolet Chevelle and Malibu SS | Turbo Hydra-matic 400 RPO | Unknown | 20,843 Reported |
| 1973 | Chevrolet Chevy II and Nova | Turbo Hydra-matic (V8 models only) RPO | $200 | Unknown |
| 1973 | Pontiac Firebird and Trans Am | Turbo Hydra-matic Transmission (sales code 36L) RPO/UPC | Unknown | Unknown |
| 1973 | Pontiac Tempest and LeMans | Turbo Hydra-matic (400/455) RPO | $236 | Unknown |
| 1974 | Chevrolet Chevelle and Malibu SS | Turbo Hydra-matic ($247.00 with LS4) RPO | $225 | Unknown |
| 1974 | Chevrolet Chevy II and Nova | Turbo Hydra-matic RPO | $225 | Unknown |
| 1974 | Chevrolet El Camino SS | Turbo Hydra-matic, with 350 or 400 engines RPO | $216 | Unknown |
| 1974 | Chevrolet El Camino SS | Turbo Hydra-matic, with LS4 454 RPO | $237 | Unknown |
| 1974 | Pontiac Firebird and Trans Am | M-40 Turbo Hydra-matic Transmission (sales code 36L) RPO/UPC | $242 | Unknown |
| 1975 | Chevrolet Chevy II and Nova | Turbo Hydra-matic RPO | $235 | Unknown |
| 1976 | Chevrolet Chevy II and Nova | Turbo Hydra-matic RPO | $260 | Unknown |
| 1976 | Chevrolet El Camino SS | Turbo Hydra-matic (included with V8) RPO | $260 | Unknown |
| 1976 | Pontiac Firebird and Trans Am | Turbo Hydra-matic Transmission (sales code 38L), with Base, Esprit RPO/UPC | $262 | Unknown |
| 1977 | Chevrolet Chevy II and Nova | Turbo Hydra-matic RPO | $289 | Unknown |
| 1977 | Chevrolet El Camino SS | Turbo Hydra-matic RPO | $289 | Unknown |
| 1977 | Pontiac Firebird and Trans Am | Turbo Hydra-matic Transmission, with Base, Esprit RPO/UPC | $282 | Unknown |
Every row traces to the source it links from on that model's own year page; this table only collects them in one place.