They were not a stock production item, but they are available for our transaxles 4T80. These pictures were of the first design. Hoping transman sees this but anyone with an answer is welcome. All I did was remove the 2nd wave plate to give the pack real clearance and a hard hit 1-2 shift. How do you know if you have this failure? Does that explain it better? Certified Every remanufactured transmission has been built and inspected by a certified technician.
This heavy duty transmission is a direct replacement for Buick, Cadillac, and Olsmobile vehicles. Through years of experience we have developed several procedures to help fix these problems. From our performance valve bodies and lock-up torque converter to our pressure-tested seals and gaskets our 4T80E transmission is one you can buy with confidence last longer than any other transmission on the market. This is parts, labor, and taxes. So with the engine where it should be, the axles are, too! I bet it doesnt have 5K miles on it. I also recommend that you replace the factory organic, oil-based transmission fluid with a good quality synthetic fluid.
I plan one for this, too. Pix: Take a look at the differentials! The 4T80E torque converter is included with every transmission. It was available with three engines: 3. Gear ratios: 1 2 3 4 R 2. The first thing I'll do is dyno it to see the difference. I firmed-up the accumulators, removed the cushion spring on the 4th band apply servo shimmed it solid.
Gear ratios for the 6T40 are: 1 st-4. Unlike the clutch packs found in your 4T80 transmission, the bands do not self-adjust. See where I am coming from?? It was built to replace both the Buick Park Avenue and the Buick LeSabre. I will have to build a tubular rad support so I can run upper dog bones. Although this information is available in current model year Service Manuals, its inclusion provides for a quick reference guide that is useful to the technician.
Look at the ouput shaft! It is therefore recommended that you do everything you can to prolong the life of your Buick Lucerne. All sorts of problems can result from bad shift solenoids. Our parts meet or exceed the guidelines set forth by the manufacturer. I'm going to buy a spare k-member later this week for fitment. Doing so causes the gasket to be squeezed out and the result is a leak. I also removed 4-of-12 3rd piston return springs and a few 2nd piston return springs, too. A custom rear manifold will be required.
It should be tested in all gears while the vehicle is being driven. Upgrades Some transmissions have inherent factory flaws causing them to chronically break down. How to Extend the Life of the 4T80 Transmission in Your Buick Lucerne Posted by on Tuesday, July 29th, 2014 The 4T80 is a four-speed automatic transmission designed and built by General Motors. Our technicians have an average experience of 10 years or more. What is the combination to achieve the other ratios you 3. Well, it's just been rebuilt! During our inspection process, even the smallest of inconsistencies are addressed. Information I was able to find said available final-drive ratios are 2.
The final drive ratio is 3. But it also has stronger internal parts. Gear ratios for the 6T70 are: 1 st-4. Throughout the years this 4 Speed automatic became known for some of its inherent flaws that contributed to it's breaking down. It shifts fine and smoothly almost all the time, just like it used to. All engines used with this transmission were of the Cadillac Northstar family.
It never did before at the point, or any other. How much more horse power does it take to turn the 4T80 as opposed to the 4T65? Sometimes units get too damaged for simple repairs — when this is the case, I recommend picking up a. You might also want to take a look at the seals that keep fluid from coming out of the transaxle where the two front wheel drive shafts enter the transmission. Do you just have 4T80-E questions and need some answers? Also, the flywheel needs 4 holes instead of 3. Permission may be granted- inquire to legal northstarperformance. If left unchecked, over time they will lose their tolerances and slip.