Fully synchronized with 36 tooth synchro rings. Found in heavy duty applications.Ĭast iron case and extension housing with 7-bolt side cover. Fully synchronized with 27 tooth 1st gear and 36 tooth 2nd & 3rd gear synchro rings. It has a four step cluster and all the gears are helical cut.Ĭast iron case and extension housing with 9-bolt side cover. 1966-69 units may have electric overdrive. Fully synchronized with 30 tooth synchro rings. Some of 1964-65 units have larger gears with the same tooth count as the 1940-68 units.Ĭast iron case and extension housing with 7-bolt side cover. Those from 1955-68 may have electric overdrive. Units from 1940-54 have enclosed driveline, otherwise known as a "torque tube". Has non-synchro 1st and a "barrel" type 2/3 assembly. Also, it requires special tools to complete the rebuild as well.Cast iron case and extension housing with 4-bolt side cover. Since you can’t even be sure which version you are getting into and working in there is tough, transmission builders don’t like messing with it.
This owes primarily to the fact that there are no access codes or casting numbers. This transmission is incredibly difficult to rebuild.
GM MG5 TRANSMISSION FLUID CODE
If the RP0 code in the glove compartment ends up being MG5, that means that you have the wide ratio version of the NV3500 transmission. If you see M50, you know you are looking at a NV3500. This particular vehicle came with a 4L60E (M30). You can see the RPO code M30 clearly in this picture. If you are looking to find out what kind of transmission is currently in your truck, finding the RPO code M50 is proof positive that the factory installed transmission was a NV3500. The main differences in these versions of the NV3500 are the gearing and overall length. In order to properly identify the transmission that is currently in your truck, use the RPO codes listed below. If your vehicle is older than 1993, but newer than 1988 and it has a transmission that looks like the NV3500 it’s probably a HM290, which was the NV3500’s predecessor. Well the good news is that it’s not that difficult to ID it in either situation. It’s either, “what transmission is in the truck I have now?” or it’s “Is this an NV3500 I’m looking at?”.
GM MG5 TRANSMISSION FLUID MANUAL
There are really going to be two different situation you may find yourself in when needing to identify a NV3500 manual transmission. It is certified to keep your transmission running smoothly between -40 and 300 degrees Fahrenheit. GM recommends that users use GM Synchromesh manual transmission fluid. The catch with the NV3500 in Chevrolet and GMC trucks is that the dimensions were different depending on whether or not it was in the smaller S10 or larger Silverado/Sierra twins.
GM MG5 TRANSMISSION FLUID SERIES
For the smaller S series trucks, they used the M50 close ratio version of NV3500. For full-size trucks, GM used the wide ratio MG5 version of the transmission. There were two possible gearing options, and they were entirely dependent upon what truck that the NV3500 was equipped in. Synchronization: Fully Synchronized Forward and ReverseĬase Length: Application dependent. NV3500 Specs Manufacturer: New Venture (GM + Chrysler) We’ll get further into that later in the M50/MD5 transmission identification section. The second is that it doesn’t come with ID numbers. The first is that the case is similar to some transmissions that came before it. It can be difficult to ID it for two reasons. The transmission was developed through a joint deal by General motors and Chrysler. The NV3500 stands for New Venture Gear 3500. If you made your way here because you were trying to figure out what this code meant, you can rest assured your truck was equipped from the factory with an NV3500.
Within the confines of General Motors transmissions, the NV3500 is known as the M50 transmission. The purpose of this page is to help you find all the info regarding the NV3500 transmission’s specs and identification in one place.
0 kommentar(er)
