Q: Transmission replacement - 2006 Jeep Grand Cherokee

asked by on

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
  1. Home
  2. Questions
  3. Transmission replacement - 2006 Jeep Grand Cherokee

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

Q: Car starts but won't drive forward or reverse what should I do? 2002 Chevrolet Impala

Hi - I would check fluid level - and whether the fluid is dirty or overheated - in the transmission first. Even if only a quart low, or dirty enough to cause transmission valves to stick - it could exhibit...

Q: clicking popping sound when turning sharp left

Hello there. Is your Jeep four-wheel-drive? A clicking or popping noise can come from a CV joint with a torn grease boot. The boot develops a tear or leak and the grease will leak over time until the joint is...

Q: Q: Transmission overheating

Hi. The transmission temperature message pops up on your control panel when the powertrain control module (PCM) has detected excessive transmission fluid temperature. This is a warning to the driver as extreme temperatures can damage the transmission. Transmission temperatures can...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.