I did follow the the break in period which was 500 miles. I did not change the rear diff. fluid out. I never did with my F150 and I never had one problem with my supercrew. They are dana axels, which I thought were good, am I mistaken? Thank you all for your sympathy.
Very sorry to hear of your loss - I can't think of a worse time to break down.
If your Titan has the tow package (or off-road package), then it's got the lower gears - 3.36:1, which, with the 5spd, is similar to 4.10's with a 4spd auto.
If you don't have the tow package, then you've got the standard 2.94 rear end, which is similar to a 3.73 on a 4spd auto.
Do you have either the tow package or off-road package?
Quote: From my understanding of Nissan's specifications because the Titan is a 5 speed automatic 3.357:1 (Lower final gear ratio) is the equivalent/similiar a four-speed automatic 4.10:1. BUT don't quote me.
that sounds right. my wonder is even though the "equivelent" of 4.10, the fact remains that the diff gear is only 3.3. to me that would seem to put a lot of pressure on the rear diff. like i've said, the titan needs to go through a learning process of towing that the other's have already gone through. maybe in a couple of years they will have learned from mistakes and make a more suitable towing rig. i'd just hate to be the guinea pig, especially during a painful time like desertfam is going through.
and you need synthetic in the differential. i use 75/140. dodge automatically uses synthetic now if you have the towing package.
2002 Ram 1500 4.7L, 4.10 Gears, air bag spring helpers
KRCPerformance 206 HO cams (+50 ft lbs)
Michelin LTX/AS 245/70/17 E
2004 Wilderness 260bhs (5935 Dry, 6800 travel weight
Sold a 1999 Cub F16 towed by a 1997 Nissan 2.4L P/U
desertfam - Sorry to hear about your trouble. Thanks for the post though. I really love our Titan, but it's mostly my wifes daily driver. I won't consider towing anything with it now. I was thinking of getting the same WW you have... but not likely now.
Sorry again.
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"Your wife called, she said it's OK."
ON ORDER: 2005 F350 DRW PSD 4x4 - SITTING AT DEALER WAITING TO BE PICKED UP!!!
2005 Wanderer Wagon 325WTB FW
2004 Nissan Titan LE 4x4
2003 Suzuki Z400 (Slightly Modified)
When it was towing it towed the trailer great, although I did notice the tranny gauge go up when I wasn't trying to jam up a hill. We are selling our trailer if you are interested, let me know.
I use whatever the dealer or factory put in it. I'm not sure if it is synthetic or not. But I will ask them to put synthetic in it, whenever I talk to them. They haven't recieved the parts yet, so we'll see.
Really sorry to hear of your loss. I'm with AustinM, I can't think of a worse time to break down. There's no excuse for a basically new rig to fail you. It's got to be MUCH harder to deal with the breakdown at a time like this.
So you'll see that the Titan has similar final drive ratios overall. In a differential, the pinion bearings see a lot of loads. In other words, the front pinion bearing will have a large downward force while the rear has an equal upward force. This is because as the pinion gear tries to rotate the ring gear, the rear gear resists with a similar force. Newton's Laws of Motion: "For each action (force) there is an equal and opposite reaction (force)." Now, eventually the ring gear will rotate and the vehicle will start to move. However the pinion bearings have to be able to withstand the force that the ring gear "produces" as resistance to turning.
Now, the that ratios have no effect on how much force pinion bearings need to withstand. However, the diameter of ring gear has a huge effect. You can have two differentials with a ratio of 3.36, but one with a 8-inch ring gear and one with a 9-inch ring gear. Torque is force multiplied by the diameter. So picking the Titan's peak torque in fourth (direct) gear the driveline torque should be around 380lb-ft of torque.
Just one inch of diameter makes a large difference in how much force the pinion bearings need to withstand. This is why ring gears increase in diameter with increasing loads. I suspect that Nissan chose to use axles in the range of 8.5 inches in diameter. Just a hunch, as I couldn't verify this.
2007 Toyota V8 4Runner SR5 4WD - "CHRTRM"
2003 Sunline T-2753 - "RD HOME"
1995 Toyota Tercel 180,000 miles
1999 Dodge Dakota Sport Regular Cab 4X4 W/DETROIT LOCKER - "RSOX58" 164,000 miles
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