Re: Overdrive in a 1941 Packard

Posted by HH56 On 2021/10/27 12:21:47

It would most likely be stock as Packard first offered the R6 version OD in 39. The 41 unit would be the R9 version which was used starting in 40 and lasted thru mid 48. The R9 relay on the firewall is a black squarish box with 6 terminals and about the same size as a voltage regulator. Under the car, the solenoid is on the passenger side and has 4 terminals. Lockout lever is also on the passenger side.

R9s had an issue which for some drivers occurred more than once so Packard offered a retrofit kit when R11s came out in mid to late 48 and owners could swap out the earlier units if they wanted to buy the kit. There is a slim chance the OD could be the later R11 version. That unit has a smaller 4 terminal rectangular case relay with a fuse on the side. Solenoid is 2 terminal and it and the lockout lever moved over to the drivers side.