Below is a list of tag numbers that decode the Toploader transmission. The lower number on the tag is the serial number of the transmission in the order it was tagged, it has nothing to do with the serial number of the vehicle the transmission is in. You can find this reference and some images at this web site link
http://www.mustangtek.com/toploader/toploader.html
| Tag # | Year | Vehicle | Engine | Ratio | Comments |
| HEH A | 1964 | Mustang | 260 | wide | 25 spline |
| HEH B | 1964 | Meteor, Fairlane | 289 2V | wide | 28 spline |
| HEH C | 1964 | Mustang | 289 | wide | 25 spline |
| HEH D | 1964 | Galaxie | 390 | close | 28 spline |
| HEH E | 1964 | Meteor, Fairlane, Sunbeam Tiger |
289 4V | close | 25 1/2″ trans, 28 spline |
| HEH G | 1964 | Mustang | 260, 289 | wide | 25 spline |
| HEH H | 1964 | Galaxie | 427 | close | 28 spline |
| HEH J | 1965 | Galaxie | 390 | close | 28 spline |
| HEH L | 1964 | Fairlane | 289 | wide | 25 1/2″ trans, 28 spline |
| HEH M | 1964 | Falcon | 289 2V | wide | 25 spline |
| HEH N | 1965 | Fairlane | 289 | close | 25 1/2″ trans, 28 spline |
| HEH P | 1964 | Mustang | 289 | wide | 25 spline, 8/20/64 to 12/30/64 |
| HEH R | 1965 | Galaxie | 427 | close | 28 spline |
| HEH S | 1964 | Mustang | 289 | close | Before 8/20/64 |
| HEH T | 1964 | Mustang | 289 | close | From 8/20/64 to 10/1/64 |
| HEH AM | 1966 | Galaxie | 427 | close | 31 spline |
| HEH AR | 1966 | Fairlane | 390 | wide | 28 spline |
| HEH BL | 1965 | Galaxie | 390 | close | 28 spline |
| HEH BN | 1965 | Fairlane | 289 | wide | After 12/1/64 |
| HEH BP | 1964 | Falcon | 289 | wide | From 10/1/64 to 2/1/65 |
| HEH BR | 1965 | Mustang | 260, 289 | wide | From 12/30/64 to 2/1/65 |
| HEH BS | 1965 | Falcon | 289 | wide | From 2/1/65 |
| HEH BT | 1965 | Mustang | 289 | close | From 2/1/65 |
| HEH BV | 1966 | Fairlane, Falcon | 289 | wide | 28 spline |
| HEH BW | 1966 | Mustang | 289 | wide | 28 spline |
| HEH BX | 1965 | Mustang | 289, 289K | close | From 10/1/64 |
| HEH CF | 1965 | TVR, Griffit | 289 | wide | 25 1/2″ trans |
| HEH CB | 1965 | Galaxie | 427 | close | 28 spline |
| HEH BY | 1965 | AC Cobra | 427 | close | 28 spline |
| HEH CC | 1965/66 | Galaxie | 390 | wide | 28 spline |
| HEH CG | 1966 | Galaxie | 428 | close | 31 spline |
| HEH CJ | 1967 | Fairlane | 427 | close | 31 spline |
| HEH CL | 1966 | Fairlane | 390 GT | wide | 28 spline |
| RUG A | 1967 | Mustang | 390 | wide | 28 spline |
| RUG A1 | 1967 | Galaxie | 390 | wide | 28 spline |
| RUG AD | 1968 | Mustang | 390 | close | 28 spline |
| RUG AD1 | 1969 | Mustang | 390 | close | 28 spline |
| RUG AE | 1968 | Mustang | 428 | close | 31 spline |
| RUG AE1 | 1968 69 | Mustang, Cougar | 428 | close | 31 spline |
| RUG AE2 | 1969 | Mustang | 428, 429 | close | 31 spline |
| RUG AG | 1969 | Mustang | 302, 351 | close | 28 spline |
| RUG AH | 1969 | Fairlane | 351 | close | 28 spline |
| RUG AJ | 1969 | Fairlane | 428 | close | 31 spline |
| RUG AK | 1969 | Fairlane | 351 | close | 31 spline |
| RUG AL | 1969 | Fairlane | 390 | close | 28 spline |
| RUG AR | 1970 | Fairlane | 351 | both | 28 spline |
| RUG AR1 | 1970 | Fairlane | 351 | wide | 28 spline |
| RUG AS | 1970 | Fairlane | 351 | close | 31 spline |
| RUG AS1 | 1970 | Fairlane | 351 | close | 28 spline |
| RUG AT | 1970 | Fairlane | 351 | close | 28 spline |
| RUG AT1 | 1970 | Fairlane | 351 | close | 28 spline |
| RUG AU | 1970 | Fairlane | 429 | close | 31 spline |
| RUG AU1 | 1970 | Torino | 429 | close | 31 spline |
| RUG AU1 | 1971 | Torino | 429 | close | 31 spline |
| RUG AV | 1970 | Mustang | 302, 351 | wide | 28 spline |
| RUG AV1 | 1970/71 | Mustang | 302 4V, 351 4V | wide | 28 spline |
| RUG AW | 1970 | Mustang | 302, 351 | close | 28 spline |
| RUG AW1 | 1970/71 | Mustang | 302 4V, 351 4V | close | 28 spline |
| RUG AZ | 1970 | Mustang | 428 CJ, Boss 429 | close | 31 spline |
| RUG AZ1 | 1970 | Mustang | 429 4V | close | 31 spline |
| RUG AZ1 | 1971 | Mustang | 429 CJ | close | 31 spline |
| RUG B | 1967 | Galaxie | 427 | close | 31 spline |
| RUG B1 | 1967 | Galaxie | 427 | close | 31 spline |
| RUG B2 | 1967 | Galaxie | 427 | close | 31 spline |
| RUG BA | 1970 | Fairlane | 351 | wide | 28 spline |
| RUG BA1 | 1970/71 | Fairlane | 351 4V | wide | 31 spline |
| RUG BF | 1972 | Fairlane | 351 | wide | 28 spline |
| RUG BF1 | 1972 | Fairlane | 351 | wide | After 12/1/71 |
| RUG BG | 1972 | Fairlane | 351 | wide | 31 spline |
| RUG BG1 | 1972 | Torino | 351 | wide | 31 spline |
| RUG BJ | 1971 | Mustang | 351 CJ, Boss 351 | wide | Before 12/1/71 |
| RUG BJ1 | 1972 | Mustang | 351 CJ, Boss 351 | wide | After 12/1/71 |
| RUG C | 1967 | Fairlane | 390 | close | 28 spline |
| RUG C1 | 1967 | Fairlane | 390 | close | 28 spline |
| RUG C2 | 1967/69 | Montego, Fairlane, Ranchero |
390 | close | 28 spline |
| RUG D | 1967 | Fairlane, Comet | 289 | wide | 28 spline |
| RUG D1 | 1967 | Fairlane, Comet | 289 | wide | 28 spline |
| RUG D2 | 1968 | Fairlane, Falcon | 289, 302 | wide | 28 spline |
| RUG E | 1967 | Mustang | 289 | wide | 28 spline |
| RUG E1 | 1967 | Mustang | 289 | wide | 28 spline |
| RUG E2 | 1968 | Mustang, Cougar | 289 | wide | 28 spline |
| RUG E3 | 1969 | Mustang, Cougar | 302, 351 | wide | 28 spline |
| RUG G | 1967 | Galaxie | 428 | close | 31 spline |
| RUG G1 | 1967 | Galaxie | 428 | close | 31 spline |
| RUG G2 | 1967 | Galaxie | 428 | close | 31 spline |
| RUG J | 1967 | Comet, Fairlane | 390 | wide | 28 spline |
| RUG J1 | 1967 | Fairlane | 390 | wide | 28 spline |
| RUG J2 | 1967 | Fairlane | 390 | wide | 28 spline |
| RUG L | 1967 | Comet, Fairlane | 427 | close | 31 spline |
| RUG M | 1967 | Mustang | 390 | wide | 28 spline |
| RUG M1 | 1967 | Mustang | 390 | wide | 28 spline |
| RUG M2 | 1967 | Mustang | 390 | wide | 28 spline |
| RUG M2 | 1968 | Mustang | 390 GT | wide | 28 spline |
| RUG M3 | 1969 | Mustang | 390 | wide | 28 spline |
| RUG N | 1967 | Mustang | 289 | close | 28 spline |
| RUG N1 | 1967 | Mustang | 289 | close | 28 spline |
| RUG N2 | 1967 | Mustang | 289 | close | 28 spline |
| RUG S | 1968 | Mustang | 428 | close | 31 spline |
| RUG T | 1968 | Galaxie | 390 | wide | 28 spline |
| RUG V | 1968 | Galaxie | 428 | close | 31 spline |
| RUG V1 | 1969 | Galaxie | 429 | close | 31 spline |