Little goggling ;
L34/A9X
Rim 14x6" Offset -0.25" ( 6.37 mm ) PCD 5x4.75" Stud 7/16" UNF Source: Unconfirmed
DR70H14 (Approximate metric equivalent is 205/70/14) Source: Unconfirmed
Track Front 57.2" (1452.88 mm) Source: "45 Years of Holden" Terry Bebbington and Michael Malik 1994 p 93 and 96.
Track Rear 56.1" (1424.94 mm) Source: "45 Years of Holden" Terry Bebbington and Michael Malik 1994 p 93 and 96.
In theory the diff width including brake drums should be 1424.94 mm + ( -6.37 mm x 2 ) = 1412.2 mm
A9X Hatch & Sedan
Rim 14x6" Offset -0.25" ( 6.37 mm ) PCD 5x4.75" Stud 7/16" UNF Source: Unconfirmed
DR70H14 (Approximate metric equivalent is 205/70/14) Source: Unconfirmed
Track Front 59.5" (1485.9 mm) Source: Just Holdens Toranas collectors series. A9X edition pg 23
Track Rear 57.1" (1450.3 mm) Source: Just Holdens Toranas collectors series. A9X edition pg 23
So as you can see holden actually got something right in the mid 70's on the A9X and made the rear track significantly narrower than front...on a race track this would be a way to make a car handle predictable and neutral(for a rwd car)
Problem comes when people put aftermarket rims on and go for a staggered approach.....screws everything up, and if you have driven an LH with 500+hp on the two different tracks you feel the handling difference with your eyes closed....if your used to well handling modernish cars it feels so wrong.
Guess its another case of looks over legs lol.