Rim size for correct geometry

[7ishNZ]

On the old forum there was a post about ideal wheel size... I can't find it now, so my question is : what is the correct rim size and offset for the front geometry?
Chris must have used one rim and tyre to determine the front scrub radius... was it 15" with ET38?
Also, should the front and rear track be the same for best handling?

[AshG]

should be 15inch wheel with 195/50/15 tyre. et35-38 front and back

i have a set of team dynamics jet alloys and they are 15inch and et38 they fit perfectly under my triton rear arches

basically its the same as the sierra.

[7ishNZ]

Thanks. are they 15x6.5"?
Is the track front and rear the same?

[AshG]

no its not. im not exactly sure on the measurements as im still messing about with mine

[ACE HIGH]

A little off subject,but as Kiwis have big problems finding Sierras,maybe one of you mates may be interested in the following,I have an independent rear suspension diff from a 1983 Celica,and another from a 1982/84 Mazda Cosmos,both are complete with rear shafts brakes etc and are similar to the Sierra.$200 each if interested.I intend to do a rear engined type car in due course so wont need them now.David . 09 4314592:)