2011-Up Ford Mustang’s Getrag MT82 6-Speed Manual Transmission
Most of the manual-transmission business in the light-duty market is concentrated in the sports or muscle-car vehicles. Ford Motor Co. has had a highly successful run with the Mustang.
For many years Tremec, a world-class transmission manufacturer based in Mexico, supplied the transmission products for the Mustang. We have seen the T5, T45 and TR3650 five-speeds and the TR6060 six-speed. These are all quality transmissions that are still finding their way into our shops today.
Humming Along with the BorgWarner 4493/4494 Transfer Case
GM had great sales for a time with the Hummer brand. The economy has foreclosed on that segment of the market, and GM has sold the brand to a Chinese company. However, there are lots of Hummer H3s around and no dealer body to repair them, which sounds like opportunity for the transmission shop.
The Hummer H3 was available with either an automatic or manual transmission and used a 4493/4494 transfer case manufactured by BorgWarner. The 4493 and 4494 are operationally the same transfer case, a three-position, electrically shifted unit. The 4493 has a 2.64 low-gear ratio and the 4494 has a 4.1 low-gear ratio, which makes it a good rock crawler for the off-road guys. This obviously means that the internal gear trains will be different.
Fine-Tuning the NVG 247 Transfer Case
The New Venture 247 transfer case was used in the Jeep Grand Cherokee (WJ) vehicle in the 1999 to 2004 model years. Nobody throws away a Jeep, and these units create a lot of repair work and parts sales. They also generate an inordinate amount of tech calls as a result of the problems with the design and misunderstood theory of operation. This article will concentrate on the areas that cause shops the most trouble in diagnosis and repair.
Revisiting the New Venture 246 Transfer Case
The New Venture 246 transfer case has been in production since 1998. New Venture, however, is no longer with us, having been acquired by Magna International, a large conglomerate that is a tier 1 supplier to many of the global auto manufacturers. I wrote a previous in-depth article about the NV246, which you can download from our website (www.rsgear.com) for free, explaining the workings of this active-transfer-case theory of operation and electronic controls. Go to Technical, and find NV 246, Understanding the Tricks, under the transfer-case section. This article describes the design changes and the fixes for common problems and design defects for this unit.
End-of-the-Year Roundup
All markets historically rise and fall on the basis of demand cycles. The government has interfered with natural cycles continuously and created the situation that we now face. President Clinton revived the Carter years’ “Community Investment Plan,” which was supposed to make home ownership easier for the average citizen. This created a housing boom and a vastly overpriced and overbuilt real-estate market coupled with a complete regulatory failure of the mortgage industry and created the mess we now have to deal with. How hard was it to figure out that if you gave mortgages to people who could not pay their current rent, they eventually would default on their obligations?
Connected or Disconnected
The motor vehicle is a combination of many separate components and operating systems that are mechanical, hydraulic, electronic, and air or vacuum operated. Successful diagnosis and repair can be accomplished only by viewing the problem with a systemic approach and careful consideration of the entire group of components that can influence or be the cause of the complaint.
Self-Aligning Release Bearings
Many of today’s release bearings may not look like the original bearing that was in the vehicle. A large number of release bearings are now of the “self-centering” type.
New-Style BMW Release Bearing
New BMW applications with manual transmissions will use a newstyle release bearing. This new release bearing will incorporate two different mounting positions. The different positions will change what is known as the fork-to-face dimension.
Understanding the Myths and Mysteries of Differential Repair
One of the simplest and most-profitable repairs a shop can perform is to the differential or third member. Yet many shops do not understand the fine points of this work and turn it away.
It Is a Brand-New Part; Why Do I Have to Check It?
There are many causes for comebacks in the units our industry rebuilds. Some problems result from human error, other factors outside the unit can affect proper performance, or the new parts that were installed can create issues.
Getting a Grip on the Aisin AR5 Transmission
Up to Standards With the continuing decline of vehicles available with manual transmissions from the manufacturers, we must be aware of more “niche markets” for our businesses. The typical vehicle counts with stick transmissions have declined steadily, with both GM and Ford no longer offering full-size pickups with manual transmissions. The sports or performance cars
The Problem Is not in the Transfer Case
The most critical part of any repair work is locating the cause of the problem that causes the customer complaint. Be careful in this day of extreme economic pressure not to be too quick to remove a unit, especially a transfer case, before being positive that it is the source of the problem. We all need more work, and it is much too easy to remove the transfer case from the vehicle without inspecting all the other components that could be the source of the problem, such as driveshafts, yokes, differentials and driver bad habits.
