Identifying Aisin Manual Transmissions and Transfer Cases
One of the major problems associated with buying and selling units and parts in our industry is the need to properly identify the unit you are working on. This article is devoted to identifying current-production models of manual transmissions and transfer cases produced by Aisin AI, with the hope of making it easier for you to obtain parts in the aftermarket. Past production is not listed but includes the familiar AX5, AX15 and R151 Toyota transmissions.
Crime-Scene Investigation, Part 2
This is the conclusion of a two-part article that began in the May issue. Part 1 covered the basics of the lawsuit, the progression from warranty issues to major lawsuit, and inspection of the transmission.
Crime-Scene Investigation, Part 1
I thought you, as technicians involved in transmission repair, might like to follow a recent transmission-related lawsuit I was involved in, both to see how it really happens and to learn more about protecting yourselves and your business. The lawsuit you are about to read has been settled. All parties involved are subject to a confidentiality agreement. There are no names, dates or places, but I think the mysteries of the case will interest you.
Tremec T56 Magnum
BorgWarner designed and manufactured the T56 six-speed transmission, which is the premier six-speed on the market today. BorgWarner sold its stick-shift-transmission line to Tremec, and Tremec has continued to manufacture and refine the T56 design.
BorgWarner’s 4484 Transfer Case – Heart of the Hummer
In the current political and economic climate, the GM Hummer H2 is no longer “politically correct.” However, a lot of them have been produced and sold, and I suspect that more will follow.
There Are Many Motors in a Vehicle
The vehicles we are working on today contain a huge number of motors. Although there is one central power plant that provides power to propel the vehicle, there are increasing numbers of electric motors that provide power sources for other options. We have windshield-wiper motors, fan-blower motors, power-seat motors, convertible-top motors etc.
BorgWarner 4473 and 4410 Transfer Cases
Viscous couplings have been used in automotive applications for many years in transfer cases, rear-end differentials, torque converters and radiator cooling fans. Although the concept is not new, the viscous coupling is not well understood in the repair industry and creates a number of diagnostic and repair issues. Part of this problem occurs because all viscous couplings are by necessity sealed units that cannot be inspected. The second part of the problem is a lack of understanding of how they work, principal causes of failure and the proper diagnostic path to follow.
A Different Differential: the BorgWarner 44-82 Transfer Case
Beginning in the 2003 model year, General Motors introduced a new transfer case into its full-size-truck line. The Tahoe, Suburban, Yukon and Yukon XL all feature the BW 44-82 transfer case (figures 1, 2 and 3), which is a full-time unit.
Trail Tested: The NVG 245 Transfer Case
Jeep is the originator of four-wheel-drive vehicles, and even though the brand has been owned by numerous corporations over the years, it is still the centerpiece of four-wheel activity. The top-of-the-line Jeep model is the Grand Cherokee – or WK series, in Jeep speak.
GM IFS Front Drive Axles
In 1983 General Motors redesigned the front drive axles on its four-wheel-drive S and T trucks. The new design was an independent front suspension (IFS) for better handling and ease of manufacturing and repair. In 1988 GM added IFS front drive axles to its full-size-truck lines (K trucks).
Identifying BorgWarner Transfer Cases
We have assembled here an identification guide for the current-production models of BorgWarner transfer cases, which will include a number of models that are not sold in the United States. Since we now have a global economy and Transmission Digest is read by technicians around the world, it is necessary to try to help our brothers in other countries to identify the complete line of transfer cases.
Solving Common Noise Problems, and Problems with No Solutions
Noise is one of the great mysteries of the transmission world. Noise is subjective, and people rarely can interpret noises in the same manner. Noise travels much faster and farther in solid objects such as the steel of an automobile than it does in air. There is driveline noise, engine noise, suspension noise, exhaust noise and road-generated noise.
