- Location
- Carlisle, Iowa
Last night I was able to finish swapping from 4.9 to 5.13 gears, my question is now should I reset the ecu or anything? Or just drive it?
Post gear swap
- Thread starter xterror04
- Start date
- Location
- Probably in class..
I think drive it, because we can't change our speedometer, regearing could/should put you at the stock ratio, I don't think the computer will know a difference.
but that is just my pennies falling on the floor.
but that is just my pennies falling on the floor.
- Location
- S.Subs of Chicago, IL.
Did you happen to do a write-up for those of us who dream of doing it themselves? :sure:
- Location
- Carlisle, Iowa
No write up, just followed the fsm, I couldn't write it any better then that...
- Location
- S.Subs of Chicago, IL.
PM sent...
- Location
- Columbus OH
Just drive it, your spedo will be a little off since you are on 33's. it will show a little over what you are actually doing. Just use a GPS to get it adjusted in your head, but you will only be off by like 2-3% so it is nothing to worry about.
The big question is how does it feel off the line??
The big question is how does it feel off the line??
- Location
- Carlisle, Iowa
I haven't really Romped on it yet, but at cruising speed it is in a better power range, I will cruise around some more tonight... I did get into it around 40 mph and it definatley had a lot more pick up
- Location
- Smyrna, TN
Where did you get the 5.13s from?
- Location
- Carlisle, Iowa
our good friend Danny at Xterra Performance, he works with Steevo at Rugged Rocks, the front is actually 5.14 and those are a genuine Nissan part, the rear is 5.13 from Nitro gear
Last edited:
- Location
- Huntsville, AL
Give us the ~100, 500mi update.
- Location
- Carlisle, Iowa
No you need the 5.13 for the rear, lol
- Location
- Carlisle, Iowa
5.14 front, 5.13 rear (better price for aftermarket 5.13).... My bad I just saw my typo
robcarync
Sliders
- Location
- Raleigh, NC
These your diff gears...ring/pinion gears? Do you have to do both diffs at one time? I could swap my rear gears pretty easily, but no way am I dropping the front again after just doing the Lokka and putting fresh fluid in 
These your diff gears...ring/pinion gears? Do you have to do both diffs at one time? I could swap my rear gears pretty easily, but no way am I dropping the front again after just doing the Lokka and putting fresh fluid in
You can swap them one at a time as long as you don't plan on using 4wd. If the diff gears don't match they'll bind and could cause damage. However if you just want to get the "umphh" back in 2wd, swap it out.
Sent through an exorcism and salt flavored shotgun shells.
I'd just drive it, see if you can find one of those radar boxes cops leave on the side of the road to see the difference in mph. Shouldn't be that far off. I bet it feels good to have that extra get up and go, back.
- Location
- Denver Adjacent
You did all the work yourself? Impressive. Most impressive.
I'd be willing to attempt it but I need the particular tools.
As far as the ECU, I don't know that anything has to or can be done. Since we cant do anything about speedo correction. Running 33s with the 5.13 gears should be almost at the stock ratio so your speedo will be a little off.
I'd be willing to attempt it but I need the particular tools.
As far as the ECU, I don't know that anything has to or can be done. Since we cant do anything about speedo correction. Running 33s with the 5.13 gears should be almost at the stock ratio so your speedo will be a little off.
- Location
- New Mexico
^^This^^
It's been a while since I've done the math on that combo but I know that it came out to less than 1% less (with 5.14's) than the stock ratio. It may have been less than a half a percent difference, I don't remember. Xterror, I'll bet that your speedo will return to dead nutz accuracy.
-Rok
- Location
- Carlisle, Iowa
Speedo actually has me going 2mph slower then the gps... Not bad though I drive by the garmin always anyhow... Yep did all the work myself, I ended up buying a lot of new tools, lol... It was a learning process but I took my time and followed the fsm and arb instructions and asked for some help from a few xterra veterans for some pointers, drive it 100 miles today and it definatley feels better
- Location
- Carlisle, Iowa
These your diff gears...ring/pinion gears? Do you have to do both diffs at one time? I could swap my rear gears pretty easily, but no way am I dropping the front again after just doing the Lokka and putting fresh fluid in
Yes diff gears, I did the front one weekend, then the rear a week later, like Xado said you can do them at different times just can't use 4wd...
metzican
Suspension Lift
- Location
- Lafaytte, la
Can this be done with 2nd gen.
Intender
Wheeling
- Location
- Lewisville NC
Dont take my word for it, but I would think you could. I know that with the way the second gens are designed the front diff is always spinning, but you are still disconnected at the transfer case.
- Location
- Denver Adjacent
In theory Intender is correct. However just to be on the safe side, I'd pull the front driveshaft until I got both ends done.
- Location
- Carlisle, Iowa
Yes, either just pull the front drive shaft or pull the cvs out
robcarync
Sliders
- Location
- Raleigh, NC
So Xterror04, what was the most difficult part of the install? Specific to the gears, assuming the diff is already removed/opened?
- Location
- Carlisle, Iowa
Honestly the hardest part was removing the pinion bearings, I bought a 12 ton press and a bearing seperator and was able to get them off but I started bending the seperator.... But got the job done... Once it is out and on the bench nothing is very difficult...