Archive for the ‘Transmission Product News’ Category

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‘32 Ford Transmission Gets Authentic

Just before the end of 2012, the transmission department of Jasper Authentic Custom Drivetrains remanufactured this three-speed manual transmission from a 1932 Ford Model B.

The Model B was produced between 1932 and 1934 and was the successor to the Model A, which Ford produced between 1928 and 1931. “The biggest difference was that the transmission in the Model B used synchronizers to make shifting gears easier,” says Dave Ernst, JASPER Special Projects Consultant. “The Model A did not use synchronized gears, so the driver had to be very careful not to rake the gears, and potentially damage the transmission.”

Obviously, this early drivetrain component is no longer offered new, nor does it fit into any production remanufacturing system. That’s where Jasper Authentic Custom Drivetrains comes in.

For more information on the Jasper Authentic Custom Drivetrain division, call 1-800-827-7455.

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JASPER Updates Transmission Hydraulic Clutch Testing

JASPER’s Quality Engineers have updated the company’s transmission hydraulic clutch testing process.

Hydraulic clutch testing is a method of simulating the operation of a transmission clutch. The process identifies defective clutches not typically identified by dynamometer testing. “This is not a new technology at JASPER,” says David Kassebaum, JASPER Transmission Quality Engineer. “But it has been improved through the use of computerized data acquisition.”

Hydraulic clutch testing the transmission, prior to final assembly, will check for cracked drums or pistons, imperfections in the fluid channels, and defective or damaged seals.

The test is performed using a transmission-specific plate designed to direct oil to each of the individual clutches in the transmission.

A normal transmission dynamometer does not test the individual clutches. It only tests the gear ratio, which only shows that the clutch has applied. During the dynamometer run, the transmission pump sends significant amounts of oil to the clutch, which typically makes it difficult to identify leaks, or imperfections, in the clutch. Hydraulically testing the clutches individually is used to reduce, and prevent, complaints of harsh or soft shifts and other driveability complaints caused by ineffective clutches.

“Until recently, the process of hydraulic clutch testing was done with analog gauges, and the clutch pressure measurements were not recorded or stored,” says Kassebaum. “With hardware and software developed by JASPER, our method of testing has been greatly improved.”

During JASPER’s remanufacturing process, each transmission is given an identification number. As the transmission is assembled, the identification number is typed into the hydraulic clutch test software, allowing the software to pull the correct test for the transmission.

As the builder is prompted through the test, the software records the pressure measurements using two pressure transducers. The software compares the measurements to the specifications within the test and determines whether the clutch passed or failed.

“If the transmission fails the test, the unit is repaired and the test is repeated to ensure proper clutch operation,” says Kassebaum. “The software will not allow the unit to be dynamometer tested until the unit passes the hydraulic clutch test. Once the transmission has passed this test, its measurements are saved in JASPER’s computer database.”

By utilizing this software, JASPER Quality Engineers are able to drive improvements in the remanufacturing process by analyzing this data to determine the perfect method to improve the assembly of transmission clutches.

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JASPER Revamps Converter Balancing

 

The Hines Industries balancer uses special tooling that floats and holds the converter’s internal components separately from the outside housing.

Jasper Engines & Transmissions, has updated their process of balancing torque converters.

In the past, JASPER has used balancers that are typically the standard across the automotive industry. A converter balancer spins the entire converter as one assembly, balancing the internal components along with the outside housing. “However, when the converter operates inside the transmission, the internal parts and housing rotate at different speeds,” says Matt Lindauer, JASPER Converter Department Team Leader. “For this reason, this method of balancing has become inferior and unreliable.” 

JASPER has switched to a new balancer made by Hines Industries. “As a converter is being balanced, special tooling floats and holds the converter’s internal components separately from the outside housing,” says Lindauer. “The new balancer gives JASPER product repeatability, a quality product every time and reduced warranties.”

For more information on the JASPER line of remanufactured transmissions, please call 1-800-827-7455.

 

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Chrysler PowerFlite Gets Authentic

The Chrysler PowerFlite two-speed automatic was produced from 1954 to 1961. 

A predecessor to the Chrysler TorqueFlite recently made its way through the Transmission Department of Jasper Authentic Custom Drivetrains.

When the two-speed PowerFlite automatic was introduced in 1954, Chrysler became the last Detroit automaker to “drop the clutch pedal,” so to speak, and enter the world of fully automatic transmissions.

The durable PowerFlite had few moving parts and, with aluminum components, was lighter compared to the automatic transmissions of the day (the GM Hydra-Matic, for example, was all cast-iron… very heavy).

Because the PowerFlite did not feature a “Park” range, it was necessary to use the handbrake whenever the car was parked. Chrysler products had a single brake drum mounted on the driveshaft, just behind the transmission. This locked both rear wheels in the same way that the “Park” setting did in other transmissions.

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Updated Chrysler 47RE/48RE Transmissions

Jasper Engines & Transmissions, the nation’s leader in remanufactured drivetrain products, has made the following update to the Chrysler 47RE/48RE transmissions commonly found in Dodge RAM pickups.

The torque converter is a critical weak point of these transmissions, especially around the inner seal of the lockup piston. “JASPER has noticed the piston will wear on one side of the inner seal, but not on the other,” says Craig Leuck, JASPER Transmission Division Manager.

The main reason this occurs is that the piston is not properly centered on the turbine hub of the converter. “Drivers will notice shuddering problems on lockup, or a loss of lockup capability altogether,” says Leuck. “Losing lockup to the point of slipping will delaminate the paper off the piston, and potentially clog the cooling system, causing catastrophic transmission failure.”

Although aftermarket sleeve kits are available to weld onto the pistons, Leuck says the kit alone will not solve the problem. “Centering the sleeve kit to the piston will not eliminate the wear problem experienced in OE applications. The key to the repair is to center the sleeve kit to the damper assembly, instead of the piston.”

JASPER’s extensive research and development ensures the repair sleeve is centered to the damper assembly, eliminating the wear issues of the piston.

For more information on the remanufactured transmissions of Jasper Engines & Transmissions, please call 1-800-827-7455.

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JASPER Offers Chrysler 68RFE Transmission

68rfe

Jasper Engines & Transmissions, the nation’s leader in remanufactured drivetrain components, offers the following transmission to its remanufactured lineup.

The Chrysler 68RFE rear-wheel drive transmission can be found in 2007-present versions of RAM 2500/3500 trucks equipped with a 6.7L diesel engine.

JASPER has made improvements to this unit, most significantly to the UD and OD clutch. Extra plates have been added in both clutches to increase their torque holding capacity. The clutch drum has been modified to improve oil circulation and reduce the chance of heat buildup.

New pump bushings are 100% installed on the JASPER 68RFE. This reduces the chance of galling on the pump cover.

Every JASPER remanufactured transmission is subjected to strict, high-quality processes:

  • Disassembly, meticulous inspection and cleaning of components.
  • All new and remanufactured parts are carefully inspected for correct tolerances to assure dependability.
  • JASPER’s research and product development ensures inherent problems in OEM design are corrected.
  • Dynamometer testing of every domestic automatic transmission simulates in-vehicle operation to assure trouble-free product results.
  • An available Premium Service Plan offers customers even greater value.

Each transmission is covered by JASPER’s 3-Year/100,000 mile nationwide transferable parts and labor warranty. Full warranty disclosure is available on our website or upon request.

For more information on the remanufactured transmissions of Jasper Engines & Transmissions, please call 1-800-827-7455.

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What’s “New” at Jasper Authentic Custom Drivetrains

buick-transmission 

Bob Goodman, of the Jasper Authentic Custom Drivetrain Transmission Department, poses with the finished Buick transmission.

The title of this story is a little misleading… because nothing is new when it comes to the Jasper Authentic Custom Drivetrains division. In fact, it’s all old.

Case in point: the Dynaflow “Dual Path Turbine Drive” two-speed automatic. This transmission was built from 1961 to 1963 and was used in the Buick Special. The Special was Buick’s answer to customers shopping for a smaller car, as opposed to the heavy, oversized cars produced in the day.

The concept of the car was light and fuel efficient, but the engineering of the transmission was unique. It was the perfect project for 22-year JASPER Associate, Bob Goodman, now with the Transmission Department of Jasper Authentic Custom Drivetrains. Bob has a special knack for how transmissions work.

“In terms of the philosophy behind how clutches and pumps work in most transmissions, there are inherent characteristics that apply from one transmission to another,” says Goodman. “This transmission was different from all of them, and that’s probably why it had such a short production life.” “The design of the clutch packs is quite unique… they don’t apply with pistons alone, but with a fulcrum and lever,” added Goodman. “It’s an air-cooled transmission, with cooling vanes on the torque converter to dissipate heat.”

Other engineering oddities include the “skillet-type” pan cover, held in place with a single bolt through its center. “The governor on this transmission has a big pivot lever in the back and looks like weights off an old steam engine on the output shaft that would generate a fulcrum effect,” says Goodman. “It would push in a valve on the valve body to generate governor pressure. It’s very abstract in terms of the thought process behind the way it was designed.”

“Most importantly,” added Goodman, “Due to the transmission’s short production life, along with its design issues, it is very hard to find parts. This is not a cheap unit!” But that’s the point of Jasper Authentic Custom Drivetrains. These Associates specialize in remanufacturing engines and transmissions that are currently no longer offered, or have been turned away in the past because they did not fit into a production remanufacturing system.

“One type of client that would benefit from our division, for instance, is the individual restoring a ’69 Corvette who wants his or her serial numbers to match, and wants their engine to be hand-built by experienced professionals,” says Alex Ernst, Jasper Authentic Group Leader.

“With Jasper Authentic Custom Drivetrains, we spend extra time remanufacturing an engine or transmission,” Ernst added. “We give the customer that hands-on, hand-built treatment that our target customer base is looking for.” In addition, Jasper Authentic Custom Drivetrains provides some extras for the enthusiast. “Customers can opt to have their engine dynamometer tested, in addition to the live-run test we perform on most applications,” said Ernst. “And we can provide the customer with documentation of the remanufacturing process. With a login name and password, they will be able to go to our web site and check the daily progress of their engine or transmission.”

“If a customer opts for the documentation package, Jasper Authentic Custom Drivetrains will provide a binder and CD with pictures & specifications,” added Ernst. “Now the customer can archive the documentation for their own records, or use it to authenticate their unit as they show their vehicle.”

dodge-transmission-update1

(Above left) This little clip holds the boost valve spring in place on the valve body. (Above right) The clip is made of stamped steel and will break at one of the weak bend points.

Have there been times when a Dodge truck comes to your shop with no forward or reverse movement? If so, that problem could be caused by the boost valve spring retaining clip found in the valve body.

“This little clip is made from stamped steel and has a weak point in the bends,” says Craig Leuck, JASPER Transmission Division Manager. “Over time, the clip will break at one of the weak points. This allows the boost valve to move out of the valve body, losing all line pressure to the transmission.”

JASPER installs a thicker boost valve spring retaining clip in all Dodge valve bodies to compensate for the weak points found in the original clip.

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JASPER Offers Remanufactured GM Six-Speed Automatic Transmissions

6l80-90

Jasper Engines & Transmissions, the nation’s leader in remanufactured products, has added the following late-model transmissions to its remanufactured line up.

The GM 6L80 and 6L90E 6-speed transmissions are available for the following 2007-2009 vehicles:

  • Chevrolet Yukon Denali, Avalanche and Suburban
  • GMC Sierra Denali
  • Cadillac Escalade
  • Chevrolet/GMC C/K 1500-3500 pickups

These transmissions are unique in that the transmission control module (TCM) is physically contained inside the transmission. “These control modules are vehicle identification number (VIN) specific and must be reprogrammed accordingly,” says James Corbin, JASPER Quality Systems and New Product Development Manager. “JASPER will ship these units already programmed per the vehicle VIN from the factory.”

Every JASPER remanufactured transmission is subjected to strict, high-quality processes…

  • Disassembly, meticulous inspection and cleaning of components.
  • All new and remanufactured parts are carefully inspected for correct tolerances to assure dependability.
  • JASPER’s research and product development ensures inherent problems in OEM design are corrected.
  • Dynamometer testing of domestic automatic transmissions simulates in-vehicle operation to assure trouble-free product results.
  • An available Premium Service Plan that offers customers even greater value.

Each transmission is covered by JASPER’s 3-Year/100,000 mile nationwide transferable parts and labor warranty. Full warranty disclosure is available on our website or upon request.

For more information on the GM 6L80/90E and JASPER’s complete line of remanufactured transmissions, please call 1-800-827-7455.

Jasper Engines & Transmissions has made an update to the reverse servo of Ford 4R55E/5R55E transmissions produced between 1995 and 2008.

This update centers around the installation of a support plate over the reverse servo cover of the 4R55E/5R55E transmissions found in the Ford Ranger Pickup, Explorer SUV and the Aerostar Minivan. Drivers noticed the loss of reverse in these vehicles. The problem centered around the reverse servo gasket of these transmissions.

The gasket lies underneath the reverse servo cover. “These OE gaskets handle in excess of 250 psi when in use,” says Craig Leuck, JASPER Transmission Division Manager. “We have experience that aftermarket gaskets can hold about 425 psi. But we also know these transmissions will see pressures in excess of that.”

“JASPER’s Reverse Servo support plate allows the servo to handle in excess of 600 psi, well above what the servo will see, to make sure these transmissions can maintain reverse,” added Leuck.

The remanufactured 4R55E/5R55E transmissions are covered by JASPER’s 3-year/ 100,000 mile nationwide transferable warranty. Full warranty disclosure is available on our website or upon request

For more information on these and other remanufactured products of Jasper Engines & Transmissions, please call 800-827-7455.