Air (there are two pumps under the rig at the drivers seat that push out 5PSI.Does the 04 rubicon have air lockers or electric lockers?
besides putting the vehicle on jack-stands and engaging the lockers to see if the wheels spin the same way, go on a test drive and while in 4low (only works in 4low) engage the lockers. You are checking to see how long it takes until they engage (stop blinking, while rolling very slow) and try making a turn (it should be a lot harder than normal)how should one inspect lockers for function prior to purchase?
5speed vs 6 speed is all personal preference, they both work greatWhat is the verdict on the later NSG370 vs. the NVG3550 in the 04 rubicon for strength/durability etc?
I have an 04 and there are no TSB recalls. The dealer can run the VIN and make sure.In addition are there any other important TSB's for this year rubicon?
Air lockers that activate with very low pressure (5psi). There is a tiny little air pump for each axle, controlled by the dash switch.shawplat said:Does the 04 rubicon have air lockers or electric lockers?
Find a gravel road or dirt lot - anything except a paved road. Put the Jeep in 4W Low range, and crawl forward slowly. Activate the locker rocker switch down once to engage the rear locker. Wait for the light on the dash to stop blinking. Now activate the switch a second time for the front axle, and again wait for the blinking to stop. Now release both lockers by operating the switch upwards. Wait for the dash lights to go out.shawplat said:Were there any problems with the lockers for this year, and how should one inspect lockers for function prior to purchase?
Both are good durable transmissions. The 5-speed has a higher first gear and a higher overdrive. It is slightly more important to use lower axle gearing to compensate for larger tires. With either transmission, 33's are the largest tire you can comfortably run with stock 4.11 gearing. But if you gear the axles properly, the higher overdrive on the NV3550 is slightly better for highway mileage. The lower first gear on the NSG370 is slightly better for crawling - but only under the most extreme conditions.shawplat said:What is the verdict on the later NSG370 vs. the NVG3550 in the 04 rubicon for strength/durability etc? In addition are there any other important TSB's for this year rubicon?
on an 04 not a problem usually, an 05, 06 hey are more common. yours was an 04?Beware of bad OPDA, Mine went out with no warning. Only 40,000miles on it
Oil Pump Drive Assembly- on newer 4.0s - similar operation to a distributor as it takes the cam movement and uses it to provide the mechanical movement for a cam position sensor . Same place as the distributor on older models. 05, 06 seem to have a higher incidence of failure due to bearing design in the ODPA unit. Do a search you will find reams of info.Opda?
No - it's Oil Pump Drive Assembly.Oil pump distributer assembly
where cab\n you find the air actuator mine is bad1) Air
2) Not that I know of, activate front/rear to make sure they engage
3) The NSG370 is looking like it is a solid transmission. They aren't too old yet though.
Welcome to ROF!where cab\n you find the air actuator mine is bad
It’s a 2004 keep rubiconwhere cab\n you find the air actuator mine is bad
You asked where in the cabin, which is in the picture below, but you’ll need to describe more. I doubt the problem is in the cab. Sheesh my dash is dirty 😀. Bummer your salesman didn’t show you that switch.
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Where can i find to buy the air actuator for the lockers. Its a little vacuum control to lock in the axl lockYou asked where in the cabin, which is in the picture below, but you’ll need to describe more. I doubt the problem is in the cab. Sheesh my dash is dirty 😀. Bummer your salesman didn’t show you that switch.
View attachment 76217
