• Ford C6 Automatic Transmission Diagram
• Ford C6me-a
• Ford C6 Rebuild Kit
• Ford C6 Torque Converter

Built Ford Tough.

The 4 speed toploader is one of the toughest manual transmissions ever built.

C6 transmission parts & rebuild kits ford. 4r100 e4od c6 fmx 42rle a500 42re 42rh 44re a518 46re 46rh 47re 47rh 48re a727 45rfe 5-45rfe 65rfe transmission rear seal with boot replaces c1dp-7052a fits '51+ ford lincoln mercury & '65+ dodge jeep chrysler. Ford’s C6 transmission was first pressed into service for 1966. It was designed to replace a generation of heavy and outdated BorgWarner MX and FX iron-case transmissions used behind Ford big-block and Y-Block V-8s. The C6 is on a par with GM’s Turbo- Hydramatic 400.

Identification of the Toploader is easy. Toploaders are top accessible (from a 10 bolt steel plate)

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For decoding the specific application look for a metal tab riveted on the right side of the transmission body housing.

HEH-? or RUG-? are the codes necessary for decoding specific transmission application from the

Close and Wide Ratio

2 types of gear ratio are commonly associated with the 60's 70's toploader

Ratio chartpage gives a good idea of rpm, speeds and shifting points for both Close and Wide ratio transmissions.

Decoding the Toploader

For most 60's and 70's Toploaders the ID starts with either prefix HEH or RUG

The lower number on the tag is the transmission serial number. The transmission serial number is a production serial number and should not be confounded with the engine serial number, they are not the same. Some transmissions have a date code instead of the serial number.

Input Shaft

2 different INPUT shaft are commonly available for all V8 Ford's, 1 1/16' and 1 3/8'. But both input shafts have the same number of splines of 10.

Tailshaft

Also 2 popular OUTPUT shafts are available for the V8 toploader a 28 spline or a 31 spline shaft (sorry, no pictures)

Tailshaft housing Draytek driver download. Erfos driver.

Many different Tailshaft housings and shifter positions available with Toploaders.

Ford C6 Automatic Transmission Diagram

here are a few

Ford C6me-a

Bolt patterns (bellhousing)

2 different bolt patterns. Early Toploaders used a narrow bolt pattern type for attaching the transmission to the bellhousing and the later versions used a wider butterfly type bolt pattern.

Ford C6 Rebuild Kit

Ford C6 Torque Converter

Toploader exploded view