72-74 150 mph speedo question

[RR Fan Dan]

Was the 150 mph speedo in the rallye gauge cluster an option? My 74 RR has a 120 mph. It’s an original RM21 car so not a clone. I don’t recall seeing any other photos with a 72-74 b body with 120mph speedo.

 

[Nacho-RT74]

As far I know 120 miles Speedo is a late 73 thing

 

[Vaanth]

Was the 150 mph speedo in the rallye gauge cluster an option? My 74 RR has a 120 mph. It’s an original RM21 car so not a clone. I don’t recall seeing any other photos with a 72-74 b body with 120mph speedo.

View attachment 1896567

The 150 MPH speedometer, part number 2985895, was used with the B-body Rallye instrument cluster for model years 1971, 1972, and 1973 model production until 12-13-1972. After 12-13-1972, the speedometer was changed to a 120 MPH speedometer, part number 3592397, for the remainder of the 1973 model year. The 120 MPH speedometer continued in the B-body Rallye instrument cluster for model year 1974, part number 3592758.

 

[MWbirdLOVER70]

The 150 MPH speedometer, part number 2985895, was used with the B-body Rallye instrument cluster for model years 1971, 1972, and 1973 model production until 12-13-1972. After 12-13-1972, the speedometer was changed to a 120 MPH speedometer, part number 3592397, for the remainder of the 1973 model year. The 120 MPH speedometer continued in the B-body Rallye instrument cluster for model year 1974, part number 3592758.

Wow that’s in-depth and thank you

 

[Nacho-RT74]

The 74 PN was changed from 73 pretty much due the blue lense color change for high beams used in 74. Up to 73 all high beams indicator “lenses” where red.

I meant “lense” because on 71 was a red tape instead an actual lense.

I’m also thinking the 150 miles speedo must carry some other PN because earliers were with vertical high beams indicator (and tape “lense” ) while laters could get horizontal indicator???

On 240 km speedos, this high beams indicator difference does exist. Can’t recall if 150 miles too.

On a side note, I never have seen a 200 km rallye speedo (120 Miles equivalent)

 

[RR Fan Dan]

The 150 MPH speedometer, part number 2985895, was used with the B-body Rallye instrument cluster for model years 1971, 1972, and 1973 model production until 12-13-1972. After 12-13-1972, the speedometer was changed to a 120 MPH speedometer, part number 3592397, for the remainder of the 1973 model year. The 120 MPH speedometer continued in the B-body Rallye instrument cluster for model year 1974, part number 3592758.

The 74 PN was changed from 73 pretty much due the blue lense color change for high beams used in 74. Up to 73 all high beams indicator “lenses” where red.

I meant “lense” because on 71 was a red tape instead an actual lense.

I’m also thinking the 150 miles speedo must carry some other PN because earliers were with vertical high beams indicator (and tape “lense” ) while laters could get horizontal indicator???

On 240 km speedos, this high beams indicator difference does exist. Can’t recall if 150 miles too.

On a side note, I never have seen a 200 km rallye speedo (120 Miles equivalent)

This place is a wealth of knowledge. Thanks.