| 1 - 425-428 Cars 451-455 numbered up to suffix C and 3500S Manual from suffix C |
| 2 - 451-455 from suffix D and 3500S Manaul from suffix C |
| 3 - Cars with manual choke control |
| 4 - Cars with Automatic Enrichment Device |
| 5 - 425-428 except air conditioning |
| 6 - 451-455 and 3500S Manaul except air conditioning |
| 7 - Late models |
| 8 - 451-455 up to suffix A with air conditioning |
9 - 451-455 from suffix B and 3500S Manual with air conditioning
|
| 10 - With crook type control |
| 11 - With circular type control |