hiace/hilux 3.8 v6

[noooka]

how are ya,
I have a 3.8 holden engine in my hiace, it has 4.11 gears in the diff and i want too get the ratio as close to a commordore 3.08, so that it does not rev as hard and change gears so quik.
: is 3.54 the highest set of gears that fit in a hiace/hilux diff,
: i herd a guy put a "lock up torque converter" in his hiace and it sat on 2300 at 100km, is that a better option.
: or if anyone has herd of any diff swaps with the same track width or conversions please let me know.
: also is the front and rear hilux diff centers the same

Thanks heaps
Nick

[Sic Lux]

The solid axle front diffs are the same as the rear ones. up to mid 97
Are the axles in it now 5 or 6 stud. 6 stud axles should be 30 spline where as the 5 stud axes are 27? spline
So you'd have to swap the crown wheel and pinion over or it'd be easier put the differntal carrier(bit with the 4 star gears in it) from your current diff into the new one if it has 5 stud axles.

[viet667]

I have a 4.3 chev V6 in my Hiace and it used to have the original 4.3 which used to rev way to hard at freeway speeds. I changed the centre
to a 3,78 from a V6 hilux which bolted straight in. I was told that that was the tallest ratio available as a bolt in centre and not aware if a 3.5 exists . It has made it much better but still goes through the gears too quick and goes into overdrive at about 50 km/hr, however I am pretty happy with this ratio as comparecd to before.
I have seen a V8 Hiace with a complete diff out of an XD falcon but was slightly too wide and his sliding side door would rub on the wheel.

[noooka]

thanks for your help,
i think il go and put 3.5 in it (wel if the guy is not bullshiting that theyl fit in), hopefully its revs alot less on the freeway,
cheers
Nick

[Guy]

Put bigger tyres on it.