motorhead

What I'm curious about is could one not use one of these calipers (or any small car caliper with a mechanical linkage on it), fab a bracket, and then mod a small soild rotor (geo metro for instance) to fit between the rear driveshaft and the tc flange and use it as a transfer case parking brake? All ones I've seen have the rotor put behind the flange and am wondering why...I'm sure there's a logical answer right in front of me...

Thanks

RBX

i have been contemplating the same thing. There is a thread either here or pirate4x4 where someone made their own.
the big obstacle is a caliper that 'floats' on the rotor when no engaged. most mechanical brakes are fixed,willwood makes a few but they are not 'floating'. If the pads are always dragging on the rotor the pads will wear out in no time.
I haven't seen, but have heard about folks taking motorcycle rotors and using it as the drive-line e-brake. those thin rotors would need a caliper that can clamp down to about 5mm with pads.
I think the drive-line e-brake is really trick, one day i may make one. But for now i think i am going to take the simple route and just keep the park brake on the axle.
But you should make one, and post pics, and let us all see your fantastic fab work!!

RB

motorhead

I too saw that page, and thought it was interesting, but I don't even own a welder yet,...right now, I'm working on a 7mge swap and the wiring to trigger the fuel pump is driving me nuts, so there will not be any 'fabulous fab work' for a while...I do think about it every time I look at the transfer case though...

RBX

Just an update...
I think i am going to abandon the Subby caliper idea. Because these are off the front of a GL, they have a banjo bolt and flexible line, so a regular hard line would need an adapter from the Toy hard line. This, to me, may be more difficult to overcome.
I'm not throwing in the towel yet, but i am pursuing the conversion as i can.

McBrat

the Subaru front calipers from '77-'82 had solid rotors, and yes, they use a banjo bolt, but the fittings are the same otherwise...

While I used the Celica calipers for the rear, I do have some soob brake parts in my set-up. Soob MC, Hill-holder, flex lines w/banjo fitting for front calipers the older soob (pre-90, and Loyale models) engie bays have a 10mm IF connector on the brake lines, and those come in handy

Outsane

keep the ideas coming

Hadmatt54

I didn't see anyone mention that before IFS in 86 Toyota front rotors are a solid rotor!
I've got a kit for my 86 that uses Toyota solid rotors and 85 front calipers on the rear, but I have a transfer case e-brake from FROR.
I guess my point is if the solid rotor is a sticking point...there is one that will work on the back, the question is will the caliper you choose work with that rotor?

RBX

i scrapped this idea, and used '80 corolla calipes on solid front rotos. check my build thread.

peow130

I have a solid idea, how about a hydraulic-lock e-brake for the rear brakes..\
Press brakes when stopped, send fluid to rear to compress pads into rotor, flip switch, fluid cant re-expand...
Maybe thats just the genius in me thinking.

Hadmatt54

I don't know what it's like in Spokane, Wa., but here hydraulic locks are not legal. We also have yearly vehicle inspections and random spot checks!
Years ago we had hydraulic locks for parking brakes on some of our boom trucks, but they would bleed off over time. As soon as air brakes came on the scene hydraulic locks were gone.

RBX

hydraulic locks are temporary. cable lock is the only legal and reliable solution