Rim size for correct geometry

[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