4 to 6 conversion: rear brakes Options

[bossboy302]

Collecting the bits for my project, (4 to 6) rear brake question...
Are the rear 4 rotors the same thickness as 6?
If so, can the 4 rear calipers (with their parking brake) be used?
I am doing the 5-lug.

Thanks in advance

[bossboy302]

Thanks all for quick replies...

Have done some reading before asking, but just wasn't sure about re-using the 4-cyl calipers, which I have.

Thus far have had trailing arms powdered, new bearings, etc, and have 5-lug hubs (non converted ones).

Definitely want the parking brake feature.

Don't think I need the full-on 911-type 'drum' parking brakes.

If I can find reasonably priced 6 calipers, I'll do that. If I can't, I can use the 4 calipers with trimmed rotors.

Also doing full-911 front conversion, new lines and hoses, and 19mm M/C. 155 h.p 2.2E motor, no track use.

Thanks for all the tips.

Hope to start a build thread after making fender flare decision.