Reply To: Re:4 speed automatic transmissions

Home Page Forums Discussion Topics – Ask the Experts 4 speed automatic transmissions Reply To: Re:4 speed automatic transmissions

#7109
joe_padavano
Participant

The 1962 Service Manual calls it a “four speed automatic” and even shows the four different hydraulic flow paths in the color diagrams, but in reality this trans is pretty much the same internally as the three speed auto. The “fourth” speed comes from the way the “accelerotor” is used to change the torque multiplication in the converter. This is similar to how the switch pitch transmissions from 1964-67 operated.

Recent Articles

Turbo System Safety Checks

Turbo System Safety Checks

The safety components of the factory designed turbo system have some interactive groups of safety "c...(read article)

Engine Front Drive Pulleys

Engine Front Drive Pulleys

The standard drive pulley has one groove. It drives the water pump/fan and alternator or generator. ...(read article)

1961-1963 F85 Car and Option Prices

1961-1963 F85 Car and Option Prices

Attached to this article is PDF file containing an extensive list of car and option pricing for 1961...(read article)

Recently Active Members

Profile picture of jensenracing77
Profile picture of oaklyss
Profile picture of johnsage
Profile picture of joe_padavano
Profile picture of 62cutlassconvert

OldsJetfire Forum