How to Build a Ford C6 Select Shift Transmission Step by Step. Fords C6 transmission was first pressed into service for 1. It was designed to replace a generation of heavy and outdated Borg. Warner MX and FX iron case transmissions used behind Ford big block and Y Block V 8s. The C6 is on a par with GMs Turbo Hydramatic 4. Chryslers 7. 27 Torqueflite transmissions. It is a heavyduty 3 speed automatic transmission designed primarily for high power V 8 engines and employs a conventional, non locking torque converter. Internal C6 architecture isnt much different than that of the smaller C4 introduced in 1. Chapters 4 and 5. The C6 differs in its size and having a larger casewhere bellhousing and main case are one integral casting. This means you are faced with choosing between at least four basic types of C6 bellhousing patterns. Heres what you can expect to find and how to differentiate between them SHARE THIS ARTICLE Please feel free to share this post on Facebook Twitter Google or any automotive Forums or blogs you read. You can use the social sharing buttons to the left, or copy and paste the website link https www. Engine. FE Series. ATS CoPilot Transmission Controller Gain control over your transmission Adding a copilot to your transmission. Search titles only has image posted today bundle duplicates include nearby areas bellingham, WA bli bend, OR bnd. This personal website is a collection of information about my truck. The information that is gathered here I do not personally endorse or am I reccommending. Games Free Running 2012. RT E4OD4R Fits E4OD 4R100 3 regulator valves for a stick free accumulator body. More torque for lockup and adjustable shift firmness. A New Generation of the Torque Converter. Hughes Performance would like to introduce you to the XTM XFM series, torque converters. Simply put. Big Blocks. Series 4. M6. 9. L7. L Diesel Engines. Small Block Bellhousing. Round six bolt. Angular six bolt with closed bottomSix bolt similar to 3. Series with open bottomSix bolt. The C6 consists of a torque converter, front hydraulic pump, Simpson compound planetary gearsets controlled by one band, three disc clutches, a single one way roller clutch, and a simple mechanically controlled hydraulic control system. The C6 differs from the smaller C4 in its low reverse function. E4od Torque Converter Install' title='E4od Torque Converter Install' />Instead of a low reverse drum as in the C4, you instead have a low reverse clutch package tied to the case, which performs the same function in a C6. This means the C6 is equipped with one band and servo instead of two. For its first year, 1. C6 was a Dual Range Cruise O Matic Green Dot transmission like the C4, where normal driving takes place on the green dot at the detent. For special driving conditions on snow and ice, the small dot off detent starts you out in second gear, with upshift into final drive once you get going. For the first year the C6 was a standalone unit, meaning the valve body was Dual Range for that year only. For 1. 96. 7, the C6 became Select Shift with a routine P R N D 2 1 shift pattern just like the C4. For slippery conditions, you start out in 2 or second gear to get going. To get an upshift into final drive, you must move the shifter into D or Drive. Aside from minor changes in the 1. C6 didnt change much over its long production life from 1. The C6 remained in production long after it was dropped from Ford passenger cars and trucks because it remained popular with companies that needed it for heavy equipment applications. This is the small block C6 with the six bolt small block bellhousing for 3. W and 3. 51. C engines. You may also use this transmission behind your 2. V 8, though I dont suggest it. Theres simply too much weight and parasitic drag going on here to be used behind the lower displacement V 8s. Venting comes from a mushroom vent on top of the case. The C6 for 3. 85 series 4. M engines. Dont get this one confused with the C6 for Diesel engines, which is the same but with a cutout at the bottom of the bellhousing for torque converter access. Some 3. 85 series and M series C6s are finned and others are not. Fins add strength and some degree of cooling capacity because they radiate heat. C6 Operation. C6 function isnt much different than you find in the C4 with the exception of having a low reverse clutch instead of a low reverse band and clutch drum. Function begins with the front pump, a simple gear pump that provides hydraulic pressure for operation and lubrication for moving parts. The system is protected with drain back and pressure relief valves. The drain back valve keeps the torque converter full after shutdown. How to Build a Ford C6 Select Shift Transmission Step by Step Detailed Guides Covering Ford C4 and C6 Automatic Transmissions. E4od Torque Converter Install' title='E4od Torque Converter Install' />A pressure relief valve prevents overpressure and catastrophic failure. The C6s power flow follows the same path as the C4s except for the low reverse function. You get better load distribution and torque multiplication through Simpson planetaries and a ring gear around a sun gear. And this is where you are in first and second gear. The objective is to get power from the input shaft to the output shaft via a series of planetaries and clutches. The C6s input shaft is splined into the forward clutch. In neutral, the forward clutch turns with the input shaft and torque converter turbine. With all of its clutches and steels, the forward clutch transfers power to the ring gear, which is mated to the forward planet carrier. This rounded bell is the FE series big block C6, which doesnt have fins as on the 3. M Series and small block C6s. Some FE C6s were finned later in production for added strength. Ford C6 castings are identified by Ford casting numbers like this oneD5. UP 7. 00. 6 AAon a mid 1. Expect to see Ford casting and part numbers on all castings including tailshaft housings, clutch pistons, ring gear hubs, governors, and more. This makes these items easier to identify, but it isnt a perfect system. The year noted isnt always when the part was cast. This number is only the last engineering change, so expect to see a 1. And because the valve body is in two halves, expect to see different casting number years on each half, depending upon engineering changes. The forward planet carrier is tied to the output shaft via the sun gear. When the transmission is in first or second gear, the forward planet is always in motion. Through the Gears. As the reverse high clutch direct clutch and input shell come into play, power begins to flow. The reverse high clutch rides on the pump stator. It is also mated to the forward clutch. When you apply the reversehigh clutch, it engages the forward clutch. The reverse high clutch is linked to the input shell, which is connected to the sun gear. As power flows to the sun gear, it travels to the low reverse or rear planet carrier to the low reverse ring gear, which is splined to the output shaft. For the most part, Ive described C4 function to this point with the same cast of players. The C6 differs in where the power travels at this point. Instead of a low reverse band and clutch drum, you have a low reverse clutch locked into the transmission case. When you apply the intermediate servo and band to the forward clutch cylinder, power is channeled through the forward planet, which becomes second gear during the 1 2 upshift. In first gear, the input shaft turns the forward planet, which reverses input shaft rotation to the sun gear. The sun gear is splined into the lowreverse rear planet, which again reverses rotation to the output shaft. This gives you a gear reduction of 2. At a glance, the huge C6 pan has a little dogleg at the vacuum modulator, which makes it easy to identify. In second gear, fluid under pressure energizes the intermediate servo, thereby locking the band, forward clutch drum, and sun gear. The forward planet rotates around the sun gear, which provides support at this point. This drives the forward ring gear, which drives the output shaft in the same direction at a ratio of 1. When a C6 shifts into final drive, the intermediate band releases the forward clutch drum, and both forward and reverse high direct clutches are applied.