'64 FJ40 Front Diff disc brake conversion

[ThraxteR]

Hey guys, just bought the first of the 40series SWB cruisers, im wanting to convert the front drums to discs, what diffs out of the other series cuisers would go under that have the same diff ratio?
Any help/suggestions would be great!

Cheers

Ian

also looking for a power steer setup (engine is a 1F petrol 6)

[XLGXL]

You don't need to exchange the whole diff.
Ok check these out

http://forum.ih8mud.com/showthread.php? ... ke+dummies

And for powersteering these might help

http://web.mac.com/troyraven/iWeb/Proje ... 35D61.html

One from America so just look at it upsidedown

http://forum.ih8mud.com/showthread.php? ... ost1008741

Dial up warning!!!

[aussie_stu]

from what I've read all the 40 cruisers had the same ratios, I swapped the diff in my '78 FJ45 for one from a '80's model, plus the disc brake master cylinders and your all go.

if you go the power steering swap, there's an easier way for the tie rod/draglink than in that link, I used a 60's box, an d75 series steering arms, draglink and tierod and all just bolts on nicely (oh box needs the usual drilling and plating)

I'm looking around now for the easiest way for discs on the rears, I've seen the "cut the steering hub" way and the "custom bracket" way, just gotta decide which is the better way to do it.........

[RUFF]

You don't need to exchange the whole diff.
Ok check these out

http://forum.ih8mud.com/showthread.php? ... ke+dummies

And for powersteering these might help

http://web.mac.com/troyraven/iWeb/Proje ... 35D61.html

One from America so just look at it upsidedown

http://forum.ih8mud.com/showthread.php? ... ost1008741

Dial up warning!!!

Im pretty sure a '64 has a different diff housing to the later FJ40,s. It doesnt have CV Joints and the Hilux gear wont fit. It also should have 3.7 diffs. Later FJ40s and allmost all other cruisers had 4.1 diffs.

[fullmetaljacket]

here's one for Aussie stu http://forum.ih8mud.com/showthread.php?t=60607


this may help with fitting up - not with sourcing (sorry)
http://internet.cybermesa.com/~chscully ... discs.html

and this one too
http://forum.ih8mud.com/showthread.php? ... post839505

[turbo4t]

Pretty sure you will not find conventional CV's inside a '64 model. They look more like a uni joints unless it has been changed along the line somewhere (43 years is a long time). I would replace the whole housing to get the discs as well as the later model fine spline pinion and CV's at the same time.

[RUFF]

this may help with fitting up - not with sourcing (sorry)
http://internet.cybermesa.com/~chscully ... discs.html

and this one too
http://forum.ih8mud.com/showthread.php? ... post839505

Again this is a 64 not an 81 they have 2 totally different diff housings. The Mini Truck or Hilux as we know it brakes will not fit. As I and Turbo4t have allready pointed out the 64 does not run CV joints it runs a real odd looking joint that is similar to a Uni but different(sorry can not recal the name of them).

Your only option is to get a later model Cruiser housing with Discs or convert that to discs. But you will need to fit your current diff centre which will bolt into the later housing. You will also need all the axles and CVs out of the later housing. Actually on saying that i have a funny feeling that the real early cruiser had a course spline axle at the diff centre as well. Can anyone else confirm this?

[fullmetaljacket]

at diff
58' - 67' - 40 series front and rear - 10 spline course 33mm/1.31"
68' - 97' - 40/55/61/62/80 Front & Rear - 30 spline (fine), 33mm/1.31"
98' - 06' - 100 Series Front - 30 spline (fine), 33mm/1.31"



58' -68' - 40 series no birfeild it was ball and claw style joint
68' - 97' - 40/55/61/62/80 - 27 spline

[aussie_stu]

thanks for the link FMJ,

slight highjack here

ruff -> do you know if it's possible to swap in the front brake set up out of an early hilux (82) into the rear of a 78 45?

looking at getting some brackets like these done up, but not sure if the rotors and calipers will work?

http://www.birfield.com/~morgan/tech/LCDBC1.pdf