1968 camaro manual transmission

This kit will get you basically everything needed to convert a automatic - Camaro into a four speed machine! With this new kit you also get all the hardware needed to get the job done right the first time.

Correct bolts will include head markings like original. The transmission is professionally rebuilt and guaranteed for 1 year. If you want the real deal this is it! The Muncie M20 is basically a wide-ratio transmission and was intended for normal street driving use. The units had a 2. They are compatible with a GM 3 Series differential. They are for economy and street drivability and just cruising. It used a cast iron case. It used an aluminum case and different gear ratios from the Saginaw 4-speed.

The wide-ratio Muncie M20 was available with any of the high-performance engines, except the L78 and Z28 in 67 only came with the M The heavy-duty M22 was limited to just the solid-lifter engines, starting in Camaros in The Muncie usages are also shown on the ID tables e. The Camaro 4-speed manual transmissions ratios for both Muncie and Saginaw, with other Muncie data, are as follows:.

The transmission code is normally located on the passenger side of the transmission, arranged vertically just in front of the tailhousing joint.

See the transmission decoding information for pictures and more information. If the input shaft is visible, the number of circumferential grooves on the input shaft will also generally indicate the Muncie type. Be careful, as M20 Muncies are like later M22s in that they have no input shaft grooves. Service replacement input shafts also will have no grooves. To distinguish an early pre-suffix M22 from the other Muncies when the transmission is on a car, note that all M22s had the lower, forward, passenger-side maincase boss drilled and tapped for a magnetic drain plug.

While this boss could be drilled for a plug on a M20 after it left the factory - if the boss is undrilled, then the case definitely was not part of a M The M22 gears have a shallower mesh angle to reduce thrust load and heat. If the gearbox cover is removed, the difference in the angle between the M22 gears and the gear angle used in the other Muncies is discernable.

The shallower mesh angle of the M22 causes a "whine" noise in 1st, 2nd, and 3rd gears and the sound is the reason for the popular nickname for this transmission, the "Rockcrusher. The reason for absence of the noise in 4th gear is that 4th is a direct output from the input ratio , and there are no significant gears involved.

For additional details on other transmission component casting numbers, component casting dates, and internal transmission details, see Colvin's Chevrolet By The Numbers series, listed in the CRG References.

All Camaro 3-speed transmissions transmissions used Muncie shifters. The stock Muncie shifter was mounted by a bracket to the transmission crossmember and further supported by a longitudinal stabilizer. This caused problems in performance applications due to the transmission twisting under load and binding the shifter levers - causing many a missed shift.

The stock Muncie 4-speed shifter was often replaced by the aftermarket Hurst Competition-Plus shifter. The date code was also stamped on the protect-o-plate at the assembly plant. Note the CX stamp on the trans case. The table below summarizes the transmission maincase casting numbers for Camaro applications.

More manual transmission information, including gear ratio and ID information, is located on the transmission page. The major marks are the axle assembly stamp and the carrier casting number and casting date code.

The axle assembly stamp a. It may be necessary to partially clean the middle third of the forward face of the passenger side axle in order to locate and discern the characters. But once you find part of the stamp, you'll know where to concentrate your efforts. A wire brush can be very helpful in the search, as can a putty knife and lacquer thinner. The approximate location is same for both bolt and bolt axles.

The stamp location is illustrated in the sketch below. The photo of a bolt axle stamp PGG1 is taken from below the driveshaft, looking toward the passenger-side leaf spring. For 67 bolts, the radius rod bracket shifts the axle stamp outboard a little, as shown in the other picture. Example: BL G2 For a 68 or 69 model, this is interpreted as a 3.

After much research, CRG is pleased to publish a comprehensive list of Camaro axle codes. The CRG has researched a number of axle codes that were not documented, along with better descriptions of the axle applications and compiled the information in this listing. There were four axle center section casting numbers used for Camaros also used in Novas.

Most later 69 after 08A cars have the bolt or bolt housings that were introduced for the model year. Late 69 axles built after August 69 10 or 12 bolt were also stamped using the style code which had a C for car prefix added to the axle code, e. CBT instead of just BT.

Notice that there is no specific year included in the axle assembly code. While some axles can be traced to a specific year solely on the basis of a rarely used application code, there are other axles stamped with a code that was used for multiple years.

In order to trace an axle to a specific year, it is advisable to also check the carrier casting number and casting date code. This list was compiled from multiple GM references and from actual vehicle data. Some combinations of features have multiple axle codes, e. Some axle codes in this list were generated by Chevrolet but were not used in production only two of those four 3. N STD 2. P 4WD 2. P MET 3. These Q2-Q9 codes have not been observed in any vehicles but are mentioned for completeness.

P - Positraction. N - Non-Positraction. STD - Standard brakes. MET - Metallic brakes. Engines For most Chevrolets, the partial VIN was stamped on the engine pad near the engine assembly code. In , this code consists of the sixth through the thirteen characters of the full VIN, e. For and on, the drivetrain partial VIN's became a federal requirement and all engines were stamped with the partial VIN.

In the model year, the partial VIN for V8 engines was stamped in either of two locations: on the engine pad or near the oil filter. The alternator was moved to the passenger side in which covered the engine stamp pad and caused the VIN stamp to be relocated by the oil filter.

The block in this area is raw unmachined casting which makes this stamp difficult to see. Generally, the Norwood plant stamped the VIN on the engine pad on early cars though there are known exceptions and moved the stamp by the oil filter in the mid-December 68 timeframe. Los Angeles was not as consistent and the VIN stamp location varied during the year.

Transmissions The transmission was also stamped with a partial VIN. Like the engines, generally only the 67 SS and even then not all automatics and Z28 transmissions had the partial VIN stamped on them. All transmissions should have the partial VIN on them. The partial VIN location varied depending on transmission type and the vehicle assembly plant.