The Chrysler Imperial gearbox is fitted to the brand's luxury model, first introduced in 1926 and elevated to prestige status in the 1950s to rival the great American saloons. It was on the Imperial that Chrysler debuted its celebrated TorqueFlite automatic transmission. At EDEN BOITES, specialists in exchange gearboxes, we take a closer look at this gearbox and how to repair it when it begins to show signs of weakness.
The Chrysler Imperial Gearbox in Detail
The Imperial was initially fitted with the PowerFlite, a two-speed automatic gearbox, which was quickly superseded in 1956 by the TorqueFlite. This manufacturer-designed automatic offers three forward gears and one reverse, selected via push-buttons on the dashboard.
The TorqueFlite incorporates a torque converter, a planetary gear set and Simpson gearing. Renowned for its robustness, it can nonetheless show signs of wear on a vehicle of this age — and those signs need to be recognised early so that action can be taken promptly.
With this type of transmission, regular maintenance makes all the difference. Careful lubrication using a manufacturer-approved oil reduces friction between the gears and significantly extends the gearbox's service life, even on a classic vehicle.
Dealing with a Failing Imperial Gearbox
An automatic gearbox is a complex system in which every component plays a vital role. A neglected problem can lead to irreversible damage. Have your transmission checked as soon as you notice any of the following:
- oil patches on the ground, indicating a transmission fluid leak;
- unusual noises when changing gear;
- a burning smell coming from the gearbox;
- sluggish response when accelerating or braking;
- juddering or jerking while driving.
Take the car to a mechanic — ideally one who specialises in classic vehicles. Repairing an automatic gearbox like the Imperial's demands a high level of expertise in both mechanics and electronics, as well as specialist tooling.
Repair or Replace the Imperial Gearbox?
Following a diagnostic, the mechanic will advise whether the transmission needs replacing or simply repairing. In most cases, a fluid change or the replacement of a few components (seals, clutch packs, gears) is enough to restore the gearbox to working order.
The choice of transmission fluid is crucial: a suitable, manufacturer-approved oil prevents problems and extends the gearbox's service life. In fact, poor lubrication alone can be the root cause of a failure.
When wear is too advanced, replacement becomes necessary. An exchange gearbox — reconditioned and tested — is then the most reliable and cost-effective solution. Browse our exchange gearboxes and have one fitted by a professional.
Frequently Asked Questions
Which gearbox does the Chrysler Imperial use?
First the PowerFlite (2-speed automatic), then the TorqueFlite from 1956 onwards (3-speed automatic with 1 reverse gear).
How is the TorqueFlite controlled?
Via push-buttons on the dashboard — a distinctive feature of this automatic transmission.
Repair or replace a worn gearbox?
A fluid change or the replacement of a few parts is often sufficient. Where wear is excessive, an exchange gearbox is the safest route.
Do your gearboxes come with a warranty?
Yes, our exchange gearboxes carry a warranty of up to 24 months, with a satisfaction-or-money-back guarantee in accordance with our Terms and Conditions.
Why Choose EDEN BOITES?
EDEN BOITES is a specialist in exchange gearboxes for Chrysler and many other makes. Our reconditioned transmissions come with a warranty of up to 24 months, the option to pay in up to 10 instalments, and delivery throughout France and the European Union, with lead times confirmed on quote. Our exchange gearboxes are also eligible for our satisfaction-or-money-back guarantee in accordance with our Terms and Conditions, and we take back your old worn unit. Browse our catalogue of exchange gearboxes to find the right reference for your vehicle.
Continue reading with our guides on the Chrysler New Yorker gearbox and the Chrysler LHS gearbox, and find out how a gearbox works. You can also browse our full range of exchange gearboxes.
