Regear break in procedure
- Thread starter chengitis
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mysticz
Member
This is what I follow for the rear gears but the front gears don't really have a break in cause it's not used constantly according to shop who did my re-gear. Just don't push the front gear hard initially though.
New Gear Break-In Procedure
New Gear Break-In Procedure
chengitis
New member
ECGS break in procedure I understand but I’m not sure if I’m suppose to drive in 4WD for break in or just leave it in 2WD. Since our rigs are FWD when in 2WD wouldn’t we drive in 4wd to break in the rears as well? Over on TW the taco guys are breaking in the fronts only when on fire roads but paved roads they are in RWD.
y=mx+b
New member
v6 4runners are RWD primarily, ADD vacuum engages the front when put into 4wd.
edit: ADD stands for automatic differential disconnect
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y=mx+b
New member
No problem. Unfortunately I can't comment on the gear break in since I'm on the stock gearing and tire size (for now oof).
Sorry I should have mentioned it in the other post, but ADD stands for automatic differential disconnect. So not adding anything, its an abbreviation. Based on what I understand, ADD unlocks the passenger side from the differential and the front driveshaft is disengaged by the tcase. In 2wd with the front wheels on the ground, you can even spin the front driveshaft. In my head, this is because the differential acts like you're stuck: The passenger side output will act like the unstuck wheel and spin because its disconnected within the diff, and the driver side will be the stuck wheel and not move. Seems like that would be a lot of wear on the spider gears, but they're not under an engine load, so I dunno about that part. Hopefully someone that understands a bit more about ADD will chime in.
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mysticz
Member
You can do that also, put into 4wd and dive fire roads. I barely used my 4wd except a month after re-gearing I went up to Tahoe and used 4wd the majority of time there but in slow and not extended lengths of time.
chengitis
New member
You didn’t use 4wd for the initial 500 mile break in? Did you change only the rear oil after the break in or both front and rear?
I’m getting my regear on the 15th and going on a trip July 4 weekend. Would it be ok to break in the front on blue and red trails or would it be better to find some fire roads to break in the front before the July 4 trip?
mysticz
Member
You need to break in your rear first, then your 4wd (front). Blue trails will be fine just take it slow after 15 miles let it rest.
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mysticz
Member
I guess you could but not go over 60mph in 4h and make sure your diff lock is off. On V8 they are AWD until you lock diff do basically similar to a V6 in 4H but limited to 60mph.
For me can't drive in 4wd cause I have a twin stick transfer case and the gear ratio is lower so my tires grab surface streets when I turn.
mysticz
Member
This might answer some of your questions.
How fast can you drive in 4WD or AWD? What is the maximum speed?
Inv4drZm
Senior Member
Tacoma's don't have a unlockable t-case. Both the V6 and V8 4runners can unlock the t-case (I guess we call them 'center differentials' due to this feature) so you should be able to drive at any speed with 4hi, as long as the center diff is unlocked. Maybe the manual says 60 mph limited, idk. But V8 4Runners can do any speed in 4hi because they don't have 2 hi and I would imagine it's the same for the selectable V6 4runners.
