yeah, have run the r31 calipers on the wagon too, cant remember exactly how close to the inner guard the calipers came, the handbrake holding bracket on the calipers comes very very close to the leaves though.

when i ran the r32 calipers on the sedan i had to cut a section out of the inner guard to clear the brake line out the back of the caliper

i would imagine the inner guards of a coupe would be very similar to a sedan or wagon

Pigdog, were both of those sedans?

Fitting R31 rear discs

You use the standard r31 caliper mounting bracket
One bolt hole lines up with the h165 or h190 disc/drum/axle flange bolt holes. so 3 new holes need to be drilled to suit.
Then you need to weld some plates to the inside of the caliper bracket centre hole so that it can retain the wheel bearing in the h165/h190 as the centre bore is only just smaller than the OD of the datsun wheel bearing.
Therefore it will technially retain the bearing but there isnt a whole heap of meat in the bracket doing this job so its best to ad some more.

Caliper offset is spot on by some fluke, and depending on whether your axles have a centre locator for the disc of not the disc or axle might need to be modified, either hole enlarger or axle locator made smaller

The handbrake cables are a little more tricky and i havent got around to doing that, just a matter of figureing out how to best adapt and modify the r31 cables and splitter to the 1200, or you just swap the r31 calipers out for vn-vs/vt or whenever they decided to go to a different rear caliper and run a hydro handbrake setup

Have done this setup for my car once upon a time and for adrians car

U13 bluey have an intergrated handbrake lever.

As a side note, the caliper slide seals off the VT rear calipers I have fit onto the bluebird calipers. Good news since the bluebird slide seals are shot. Apparently PBR and Girlock share this part.

By my measurement the bolt spacing on the rear calipers is 97mm.

I've had a couple of ideas about the hand brake. One is to weld another arm on the other side of the leaver and set the cable up to pull it toward the aluminium backing plate. I see this working by using a cased cable with the free end fixed to the backing plate. With enough free lengh the casing should pull toward the backing plate. SO far that's the simplest idea I've had.

Something else I'm wondering is if there's any other calipers that would fit that have the handbrake mechanism built in, like these:

Attach file:

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  Handbrake caliper.jpg (29.42 KB)

Here's a pic of the one my mate did. his thread shows both versions of the caliper plates.
http://www.nzdatsun.com/forums/viewtopic.php?f=9&t=15&start=10
Login maybe required to veiw, but it only takes a couple in mins to register.

I'll try find a pic of my set up.
I've got limited time online atm.

I was looking at it thinking some pulleys attached to the right spots might do the job. I reckon you can figure something out for the handbrake.