Q: Transmission replacement - 2006 Jeep Grand Cherokee

asked by on December 19, 2016

Hi. I have Jeep Grand Cherokee SRT8, wk1 2006, 6.1 V8. VIN: 1J8HR783X6C256999. It has NAG1 W5A580 transmission which is now broken. 2nd to 3rd gear is slipping. Data logger shows no errors, oil is clear and has no signs of burned clutches (smell/colour). Recently replaced torque converter and all solenoids with valve body conductor plate and that didn't help. It Might be valve body itself but the one I got from ebay didn't work at all (used/faulty). Looking forward to replace whole tranny and main question is: will Grand Cherokee WK1 3.7 4x4 tranny fit in my SRT? Since I've read on forums that apparently 3.7 and 6.1 uses same NAG1 transmission.

My car has 100000 miles.
My car has an automatic transmission.

Hello - yes, you are correct. Both the 3.7l and 6.1l Jeeps utilize the W5A580 transmission. Should be a straightforward swap. Torque converter may be different however (RPM range engagement), check your transmission supplier for details.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Transmision has black oil, had Line a grinding noise and Line a whistle

If the check engine light is on, there will be stored trouble codes and those will provide clues to the mechanic as to what is going on. Transmission oil color is not always dispositive of a fault but if the...

when my gas gage hits 35 miles left the miles left disapers and the empty tank lites up how far can i drive that way

Hello. I would trust the gauge. I'm guessing somewhere around 35 miles. It's good practice to not run your vehicle that close to being out of fuel. If there is ever an emergency, you won't have time to stop to...

My car Is leaking transmission fluid.

If the output shaft seal (where the seal engages the inboard CV segment) is leaking even though the seal is new the possible causes of the leak are: wrong seal; seal is cocked in the bore, not properly positioned or...

Related articles

The Top 5 Selling Cars in Alaska in 2012
Alaska Alaska requires a different kind of vehicle to handle both the terrain and the wintery conditions. While some of the most popular options for the Alaskan terrain in previous years included options such as the Subaru Forester and the...
The Best Used Cars to Buy If You're a Skier
When When summer ends, skiers start thinking about hitting the hills, and that means having to contend with winter driving conditions. Not just any vehicle is going to get the job done. We have evaluated several used ski-worthy vehicles, and...
The Best Used Cars to Buy for Senior Citizens
Everyone Everyone needs a way to get around. You need to get groceries, get to doctors’ appointments, visit with family and more. However, senior citizens have very different needs when it comes to buying a used car than other demographics....