FJ40 Rear Disc Brake Conversion

[c110gtr]

Hi

Whats a simple rear disc brake conversion available for a '77 FJ40?

in IH8MUD you can get brackets to fit Monte Carlo Calipers and rotors thats in america, whats available in OZ?

60 series is a lot wider and too much mucking around... how about a late 75 series? straight swap?

I've got disc at the front now...

Thanks in advance

[vk7ybi]

http://www.employees.org/~dirttrak/rear ... ersion.htm

[KUSTOMV840]

http://www.employees.org/~dirttrak/rear ... ersion.htm

Thats exactly how I did mine... Worked great.

[vk7ybi]

I did mine the same, with hilux calipers and solid rotors. Rather than putting washers under the heads of the wheel studs, I made some 6mm wheel spacers.

I use this setup on my soft top and on my hard top.. The soft top has a 15/16 master and dual diaphragm booster and has a really nice pedal feel, almost feels modern.. The hard top still has the 1 1/8 drum master and single diaphragm booster, it has a really stiff pedal.. I can lock the brakes, but I nearly bust the back out of the seat doing so..

For my SOA conversion with 37s I'll be doing the same, but I'll use Surf calipers on the front.. This sets up a bias of 66/33 without valving..

With hilux or 60 calipers on the rear, the bias is 50/50, so you need some valving to get good performance.. I have trouble with the rears locking first..

You retain the handbrake on the TC, not that its worth much..

Swapping a whole 75 axle will get you the handbrake on the axle, but then you have to mess with handbrake cabling..

[aussie_stu]

little thread hijack, but does anyone have an idea as to a MC or road legal way of setting up the correct bias for running LC calipers front and rear?

also PM 80UTE -> http://www.outerlimits4x4.com/profile.p ... ile&u=2658 I spoke to him a little bit ago and he could get some brackets for the disc swap, so as you can use LC calipers and discs, I'm nearly ready to get a couple off him (if he's still got em)

[Thommo 73]

so what do you do for a handbrake

[vk7ybi]

You retain the handbrake on the TC, not that its worth much.

[loosecanon]

wow that's a great link and easy, to those who have done this, do you have a time frame, to get the finished product?? cheers

[vk7ybi]

The greatest delay is in ahving the hubs and rotors machined. Collect all the parts, get everything organised and the conversion can be done in hours..

I did mine when I rebuilt the whole axle, so that took a lot longer..

[fjn00b]

Swapping a whole 75 axle will get you the handbrake on the axle, but then you have to mess with handbrake cabling..

How hard is swapping out for the 75 axle? i don't have a handbrake at the moment so this might be an option for me.

[vk7ybi]

I've never done it, but I think it involves moving spring perches, matching tailshaft flanges and rigging handbrake cables..

[c110gtr]

How much is the bracket 80UTE makes?
And which LC calipers and rotors fits the bracket?

or

I can get the one from TSM rear disc brake kit includes the bracket, vented rotors and bolts for $269.95 and the calipers are extra $120

[Stackson45]

Depends on your $$ - i believe the 75 springs perches are 10-20mm wider than the 40's? maybe a small enough difference to keep perches where they are? although they are fairly simple to move.
With handbrake cabling - on my 75 ute with a chassis extension i had to get the handbrake cable remade 700mm longer - cost $135 or so. I assume they can put whatever standard fittings you need on the lever end of the cable to suit your handbrake.
So the cost of sourcing a 75 rear housing plus cable extension vs the adapting discs and handbrake to yours is something to look at?

[vk7ybi]

Without looking, isnt the TSM gear for SF axles?

[c110gtr]

they have one for full floater
http://www.tsmmfg.com/2492.htm