Originally Posted by silkyimpala
Hey I'm new to tacos I have a 1990 v6 single longbed 1ton 5 lug 5 speed what stock lsd diff can I use. Any idea what size diff I have. I may just spool one up and keep my og for a spare
1989 - 1995 'PreTaco' V6's were normally fitted with the so-called 'V6 / Turbo' rear differential unit.
This is a different unit from the so-called '7.5' found in 4-cylinder PreTacos and 1995.5 - 2004 Tacos. It is also a totally different 'species' from the so-called '8.4' rear end used in 1995.5 - 2004 V6 Tacos.
The 'V6 / Turbo' unit was the basis for the factory e-locker unit available as an option or as part of the TRD Off Road Package. This is the only form in which the 'V6 / Turbo' unit appeared on 1995.5 - 2004 Tacos. This unit continued to be used on 4Runners after 1995.5.
It would be a good idea to check your specifications sticker (plate, whatever) and report the axle code you should find there. There are two reasons for this:
(1) There are known instances of V6 PreTacos which came from the factory with the '7.5' rear end.
(2) Certain 'V6 / Turbo' units were specifically configured for 4.88 gears, and these units cannot be regeared with aftermarket gears designed for non-4.88 V6 / Turbo units.