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L96 w/t56 manual |
T56 Service Manual.L96 w/t56 manual
Damaged gears Disassemble and check for gear damage. Replace damaged gears. Worn or damaged flywheel pilot bushing Replace pilot bushing Transmission jumps out Synchronizer damaged or excessively worn Disassemble and check for worn or damaged of gear synchronizer parts.
Blocking ring damaged, worn index slots or Disassemble and check blocking ring for wear friction surfaces worn or damaged or damage. Replace worn or damaged parts. Excessive countershaft end play Disassemble and check. Reshim if necessary. Shifting fork loose on shift rail; worn or Disassemble and check for wear or damage. Replace roll pin s. Worn or damaged forks, offset lever, shift rail, Remove extension or adapter and case broken roll pins in offset levers. Check for wear or damage.
Worn or damaged synchronizer Disassemble and check for worn or damaged synchronizer parts. Worn or damaged gears Disassemble and check for worn or damaged gears.
Replace worn or damaged gears. Transmission noise Improper or low transmission lubricant Add or drain and replace with proper lubricant NOTE: Make sure noise is coming from Loose bolts or other attaching parts Make sure all attaching parts are torqued to transmission and not specifications clutch release bearing or other components.
Improper flywheel housing to engine Check alignment and correct if necessary per crankshaft alignment vehicle service manual. Noisy transmission bearings Disassemble and check bearings, bearing rollers and parts in and on which they operate for wear or damage. Noisy gears Disassemble and check for worn or damaged gears including speedometer gear. Replace worn or damaged gears Transmission leakage Leakage from other components Verify transmission leakage.
Thoroughly clean all exposed surfaces, then check for leaks Vent or breather clogged Remove vent tube and clean or replace Too much or improper lubricant Remove fill plug to check for excess, or drain an replace Loose bolts at sealing faces Torque bolts to specifications Improperly applied sealant Separate and thoroughly clean leaking surfaces. Reapply sealant. Check solenoid Replace parts as required Jump out of gear Reverse lockout assembly or solenoid Check lockout assembly function.
The following paragraphs provide procedures for removing the T56 transmission. Before or during transmission removal, it may be necessary to remove or disconnect other components. This is required to provide access to or clearance for the transmission and transfer case , if used. Since these components vary widely from vehicle to vehicle, specific instructions are not provided in this manual.
Refer to the vehicle service manual. Such components may include:. Console or similar cover. Parking brake lever and controls. Exhaust system components. Clutch components. A skid plate or protective covers on the underside of the vehicle.
Before removing any parts which attach or support the transmission, support the transmission on a suitable jack or stand. The jack or stand must be capable of supporting and holding the transmission independently.
Also the jack or stand shall be capable of lowering, raising and moving the transmission laterally. Before raising the vehicle, proceed as follows: a. Position vehicle over suitable hoist. Disconnect negative battery terminal. Shift vehicle into neutral and release parking brake.
Remove shift lever see figure :. Detach bottom of boot 1 so that it can be raised to provide access to lower end of shift Figure Shift Lever lever. Boot attachment methods may vary from that shown. Drain lubricant from 2. If shift lever is threaded on, loosen lock nut transmission. Reinstall fill and drain plugs. The 3. If shift lever is attached with screws 3 , then rear propeller shaft is splined to the transmission output remove screws 3 and shift lever 4.
It will be necessary to disconnect the rear end of the propeller shaft first, then move the shaft rearward to Lift vehicle on suitable hoist, disengage the splines. Support the propeller shaft to allowing clearance for removal of transmission, and related prevent it from dropping. Bend universal joints just components such as propeller shaft, cross members and enough to permit shaft removal, otherwise damage may supports.
If unsure, refer to vehicle service manual for result. Refer to the vehicle service manual for specific approved lift points. Install speed sensor electrical harness or speedometer cable location may vary. Install transmission in vehicle from which b. Install back-up switch electrical connection and any it was removed as described in the following paragraphs. Note the following: c.
Install any supplemental supports or braces that were removed during transmission removal. Installation Be sure to fill transmission with proper fluid refer to of the transmission in a vehicle other than that from paragraph , otherwise transmission will be which it was removed may result in premature failure. If vehicles is driven, transmission could lock up, causing personal injury.
The following paragraphs provide procedures for installing the T56 transmission. Before or during removal of the transmission, parts not Proceed as follows: specifically related to the transmission may have been removed to provide access or clearance.
Be sure to a. Make sure rear propeller shaft is properly lubricated. Apply thin coat of high temperature grease to output to removal refer to paragraph The transmission must be supported on a suitable jack c. Carefully insert front end of rear propeller shaft into or stand capable of raising the transmission into transmission. Use care not to damage oil seal. Connect rear end of rear propeller shaft at differential splines. Proceed as follows: Fill transmission with proper lubricant.
Apply thin coat of high temperature grease to input shaft spline on transmission. Shift transmission into high gear and raise on jack or stand. Align transmission with clutch housing. Lower vehicle to floor. Install shift lever see figure If shift lever is attached with screws, align Make sure transmission is in exact alignment with screw holes in shift lever 4 and transmission clutch before engaging splines. Do not force control lever and install screws.
If shift lever is threaded on, screw shift lever damage may result. If necessary, turn transmission 4 onto transmission control lever. Hold in output shaft to align input shaft spline with that in desired position with wrench across flats and clutch. Carefully move transmission forward, engaging 3.
Reattach bottom of boot 1. Connect negative battery terminal. CAUTION Keep transmission completely supported by jack or stand until bolts attaching transmission to clutch housing 4 are installed and torqued. Make sure mounting holes in transmission 10 and clutch housing 4 are aligned and install bolts Torque bolts to 55 lb.
Do not remove jack or stand at this time. Install cross member. Install bolts and lockwashers attaching transmission to transmission mount. Torque bolts to 35 lb. Remove jack or stand supporting transmission. Remove four shifter bolts Drain plug and drain transmission fluid. Remove shifter Rear offset lever roll pin Inspect Important Isolator cup 95 for wear. Replace rear offset lever If isolator cup 95 is not fully retained in rear offset 93 if wear is excessive or isolator cup 95 is loose.
Rear offset lever 93 and isolator cup 95 assembly. Extension housing bolts Extension housing Figure Extension Housing. Speedo Collar 23 Mainshaft 83 Ring. Roller bearing snap ring Sealing ring. Spacer Speedometer gear snap ring Roller bearing Speedometer gear 81B or rotor 81A.
Use gear puller to remove steel speed sensor rotor e. Snap ring Thrust washer Reverse speed gear Caged needle bearing Wave washer Blocker ring Under normal use the reverse synchronizer is forced against the snap ring 75 making removal difficult. Lightly tap reverse synchronizer hub forward to relieve pressure on snap ring and remove.
Reverse Speed Gear. Reverse synchronizer snap ring Reverse shift fork snap ring and discard. When replacing snap ring, the flat side of snap ring must face forward toward reverse fork. Reverse shift fork , synchronizer 62 and thrust washer 68 at the same time.
Reverse Shift Fork. Cover Plate bolts Cover plate Roll pin Skip shift lever rollpin Skip shift lever Front offset lever rollpin Drive down until it is loose. Rotate transmission into vertical position. Last 2 adapter plate to transmission case bolts Shift lever guide bolts 45 and Magnets Transmission case 44 and front offset lever Slide transmission case 44 up off of gear clusters and shift rail components.
Hold offset lever 51 against guideplate 55 to prevent release of detent ball 53 and spring Note that the loose detent ball 53 and spring 52 will come out. Shift Detent Assembly. Do NOT remove unless it is necessary to replace guideplate due to excessive wear or other damage.
Shift guide plate bolts Guide plate Countershaft Input shaft NOTE Prior to cleaning transmission case, check magnets Indentation: Displacement of material caused by localized in case bottom for presence of metal particles.
Larger, heavy contact. Smaller, powder-like Galling: Breakdown or build-up of metal surface due to particles indicate uneven or excessive wear. If metal excessive friction between parts. Particles of the softer particles are detected, be on the lookout for damage material are torn loose and welded to the harder material.
Nick: Local break or notch. Usually displacement of material rather than loss. Carefully scrape parts to remove old sealant using care not to Scoring: Tear or break in metal surface from contact under damage metal surfaces. Wash parts in cleaning solvent to pressure. May show discoloration from heat produced by remove old lubricant and dirt deposits. Use a bristle brush friction.
Parts that cannot be cleaned by brushing may be scraped but use care no to damage Step wear: Heavy wear that produces a step that can be metal surfaces. Dry parts with low pressure 20 psi max compressed air. Wiping parts dry Uneven wear: Condition of localized, unevenly distributed could leave lint deposits.
Hold bearings to prevent them wear. Includes hollows, shiny spots, uneven polish and from spinning when drying. Immediately after When cleaning, lubricate anti-friction bearings listed below with specified, inspect gear or clutch teeth as follows: transmission lubricant refer to paragraph Try the sticky under drivetrain - transmission - manual That will give you everything you need to know about the T Refback This thread.
By Valor X in forum General Help. Replies: 7 Last Post: , PM. Best service manual for DIY work? By shdowflare in forum General Help. By Fred H.
Replies: 13 Last Post: , PM. Application List Universal. Package Dimensions: W Shipping Note: This item will require a special quote for shipping charges. Shipping Remarks: No Longer Available. You must login to post a review. Need Assistance? Flywheels are more than just a connector between the transmission and the engine; they are an integral component to the clutch.
The flywheel can also affect the driving characteristics of the engine. A heavy flywheel holds more inertia for smoother shifts and easier street driving. A lighter flywheel allows for quicker revs and shifts; they are great for road racing. This is a RAM Photo Courtesy Blane Burnett. The clutch mounts between the flywheel and pressure plate. This is a single-disc LS7 system. If you require more power, twin-disc clutch kits are available for the LS-series engine.
Adapting the non-electronicallycontrolled R4 and R requires a little more work. The most important component of these two overdrive transmissions is the throttle-valve cable, or TV cable. This crucial system tells the transmission when to shift and determines the amount of pressure sent to the clutches. If this cable is off by even the slightest amount, the clutches do not fully engage, causing the transmission to burn up and eventually fail.
Adapting the TV cable to the throttle body on an LS engine is challenging, and you need to maintain the right geometry. Doing this requires in-depth knowledge of the TV cable system, and is not suggested for novices.
Aftermarket manufacturers, such as Bowtie Overdrives, offer bolt-on solutions for conversion from TV cable to throttle body. It looks a little odd compared to the earlier Gen I engines, but General Motors left off one of the boltholes on the back of the block. Other than looks, there is no difference in the bolt pattern.
Any older GM bellhousing bolts up. On older overdrive transmissions, such as this R, the TV cable is a crucial component. The most common GM automatic is the 4L60E or the 4L65E variant they are the same dimensionally, but the version has an extra pinion gear internally , depending on whether the engine came from a car or a truck. The larger Vortec engines were typically mated to the 4L80E and 4L85E variant automatic transmission.
These transmissions require computer controls that are contained in the factory ECM. However, these transmissions can be purchased separately through the aftermarket for carbureted LS conversions or when an aftermarket electronic fuel injection EFI controller is used. A cable then connects to the other side. It is placed in front of the radiator. For the newer transmissions, you need to adapt the speedometer output to mechanical output in order to use a mechanical speedometer.
These mechanical speedometer tailshafts are for the 4L60E and 4L65E transmissions. The tailshaft gear drives the speedometer gear, which in turn, drives the speedometer cable to the speedometer. Adapters are available for electronic speedometers, as well as different gears for tuning mechanical speedometers. This tailshaft is for the 4L80E transmission commonly found in larger trucks. The 4L80E can handle a lot of torque; it is quickly becoming the go-to automatic for high-performance LS swaps.
In , General Motors released a couple of 6-speed automatics for their vehicles. The 6L80 and 6L90 transmissions are used in heavy-duty GM trucks and most of the performance cars. The aftermarket has a vast number of custom-application GM transmissions that work great for LS swaps. One in particular is the TCI 6X 6-speed automatic. It is based on the 4L80E but with new guts to provide six forward gears capable of handling hp. These can be configured in several ways and come with a TCI transmission controller.
They can even be set up for a paddle shifter. The Tremec T 6-speed manual is the most popular transmission for LS swaps. It bolts right up and requires only slight trimming or denting of the transmission tunnel to fit most GM cars and trucks. T56 Manual Transmission. The 6-speed T56 manual is the most popular transmission used in LS engine swaps.
Formerly offered on the — F-Body and GTO, the T56 bellhousing, flywheel, and clutch pack are readily available.
The T56 transmission fits into most GM muscle cars, requiring only minor modifications, if any, to the transmission tunnel. Swap kits help make the install easier.
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