4cyl detroit

[Tacorox]

whats the diff size your typical sent 4cyl application fit the 8" rear end or 8.4" ?

[dende671]

a buddy of mine said all taco's, t-100's & Tundra's are 8.4. but you can check w/ your local taco dealer to make sure.

[84_Yota]

im almost positive its not 8" so it must be 8.4"

[92toy4130]

all the TRD trucks are 8" the non TRDs have the 8.4 housing.

[86GAToy]

yep i have an e-locker out of a 00' runner

[Tan84toy]

Differentials
Non-trd
In the past this diff has also been mistakenly called an 8.4" or 8.25" diff. The ring gear actually measures 8", but it is not compatible with the older 8" diffs at all. The extra strength of this diff comes from the bearing cap/truss and large diameter pinion gear shaft.


Trd (elocker)
A factory option on 3rd Gen. 4Runners, Tacoma 4x4's, and Tacoma PreRunner 4x2's is an electric locking rear differential. This diff is a 4-pinon design based on the Turbo/V6 8" diff and uses the same gear sets.
These locking diffs can be retrofitted into 8" diff axles if the axle housing is modified . It cannot be easily retrofitted into a T100/Tundra or open-diff Tacoma style axle housing because the mounting bolt pattern is smaller. It "could" be done by an axle builder by doing major work to the mounting flange, but that is not really a practical option.
Fitting inside older non-tacoma 8" axles http://www.4x4wire.com/toyota/tech/electric_locker/

Just some info I found.