JDeMello

Ok so are the tacoma standard 8.25 rear diffs and the 4runner rear diffs the same or differnt? In other words can they be interchanged?

And can a electric locker be put into a stock 4runner 3rd gen housing with some light fab work? I know you can't do that in a tacoma?

And I understand the 4runner 3rd members are the same as the older v6 diffs and the 4cylinder turbo diffs?

Is this all right?

Just trying to check out my options

Yes I have seen the toy tech axle site but it don't really answer these questions.

Thank you
Jason DeMello

Flygtenstein

All 4wd 3rd Gen runners have 8" rear diffs.

E-locked Taco's have 8" diffs as well.

These diffs are interchangable with rears on 4wd Toy trucks from 86 to 95, front or rear Toy trucks from 79-85 and rear 80's series cruisers from 91-97. Cruisers have high pinion fronts that are the same size diff, but they are high pinion, so they are less durable in rear applications. All the rest, pull the third and stick IIRC.

All e-locked diffs should be V-6 gears.

The housings listed above are all 8" Toy. The gears and carriers will have 4 cyl to 6 cyl differences.

Non-TRD Taco's as well as open diff'd should have 8.25" diffs as well as some T-100's.

I think this all comes out about right.

JDeMello

So a elocked diff like the one in my taco will fit the rear 4runner 3rdgen housing?

But my spare 8.25 standard taco rear diff won't fit my 3rd gen 4runner?

What about gears? I know the 8in and the 8.25 are differnt but what about the 4runner? Does it have the same ring and pinion as my taco e-locked?

justinh

you will have to do a little grinding and welding on the housing of the 4runner rear axle to put the e-locking differential in there. it has been done many times and some members on this board have done it.

Flygtenstein

Your 8.25" diff will not fit your runner.

Think about it like this, and I only mean metaphorically, one is a Dana 60, one is a Dana 44. They are different axles.

Your 8" runner housing will need to be modified to accept the e-locker.

No amount of modification will get a 8.25" diff working in an 8" housing.

Your runner has an 8" diff. All 6cyl 8" gears will work in it. 4cyl gears will work with shims. 8.25" gears will not fit.

sschaefer3

Actually all 1996-2002 4Runners, reguardless of 4WD, 2WD or 3.4, 2.7 have the V6 8" diff. They are all the same. All 4WD have the 7.5" front diff.

The original engine and tire size dictated the gears which range from 3.70 to 4.56.

The transmission and transfer cases are different between the 3.4 and 2.7. Obviously the 2WD 4Runners have an even different transmission.

All 1996-2002 4Runners were made in Japan and have slightly different Japaneese made parts than the Tacoma. The same part will not be "exactly" the same. Japaneese supplier versus North American supplier.

JDeMello

Thanks that would explain why the 98 4runner we had never had a problem and the 99 tacoma we have has had little things.

Adam F

Actually, the FJ80 rear has the same 9.5" diff as the earlier FJ40/45/55/60/62


or is it the 8.875? Not sure, but it's definetly not 8" like 4Runners

sschaefer3

8 7/8" is what the FJ-62 has.

Flygtenstein

Thank you for the clarity gents. In my interest of being complete, I over stepped my bounds.

Moral of the story is the Runners and non e-locked Taco's have different diffs.

44Runner

The FZJ-80 got the true phatty Toy diff. True to LC form, Toy had to make these old rears different from the rest of the Toy stuff, so they of course had crappy C-clips. The FZJ-80 got the phatty full floating version of this axle...

RR DIFF LOCK

Sorry to resurrect an old thread here, but may I clarify the part #'s for the correct lockers for my application? (1999 4Runner Base Wagon 4WD 2.7L 4cyl)

Detroit EZ Locker: 813A015
Aussie Locker: XD-20830
Powertrax Lock-Right: 1620
ARB Air Locker: RD23

Are these part #'s correct? Thanks in advance for your help.

RR DIFF LOCK

So as an FYI to anyone who cares, Bill from Aussie Locker informed me that they will soon be releasing the TOYOTA 4-pinion rear. This will be the correct part for my application and any other 3rd gen 4Runner if I am not mistaken (treading lightly here). Part is expected in the next few mos, along with some other applications including the Tundra.