XF Ute Drum to Disc

[Mr Polson 10,214]

I'm looking at swapping to disc brakes for the back end of the ute, I'll need it anyway if I ever get around to putting in the V8. Plus the drums are all wonky and undersized and need replacing.

 

Its currently got a 3.23 LSD. Now the LSD is at the point where half the time it acts as a single spinner.

 

So, should I rebuild the LSD part (if that's even possible?) And swap the axles to disc ones?

 

Or just swap to a XG/XH or e series wagon diff and do it that way?

 

I know if I go e series I need brake line thread adapters for imperial to metric.

Anything else?

[Mr Polson 10,214]

And what about brake boosters? Are disc/disc ones different to disc/drum?

[XFGHIA747 76]

Hey mate if it was me id grab hold of the e series wagon diff and bang in pretty sure even the older sister center will go in with the right shims but ill stand corrected.

[Jonathan Mark Davidson 169]

pre el diff and need the hand brake cable to suit or el onwards and will need to get a handbrake cable made will also need the e series lwb tail shaft

the adapter part no is MF 121-10-03 available from abs and is around $1.50 trade

 

i've had both a xg diff and now a el diff in my xd the el diff gives me better clearance due to the brake lines being on the body but had to get a custom hand brake cable made 

 

the master and booster are the same (some not all have a plastic re-stricter in the rear brake line at the master)

[Mr Polson 10,214]

A handbrake cable to suit the e series diff or just to suit a disc rear end? 

If an XF wagon handbrake cable (to suit disc obviously) would work, I can use the one from the Ghia wagon.

[Ando81 2,949]

I heard a bloke being told to put a different master cylinder on to go to disk brake diff. Someone said that the disk brake master cylinder has a different proportion valve fitted coz drums need different amount of pressure to work properly. The e series diff has the 4 bolt flat flange on the pinion too so the tailshaft needs to be e series.

[Mr Polson 10,214]

I've heard some people say the master cylinders are different due to that valve, and other people saying they're the same.

If they're different I can take the one off my wagon and put that in.

 

So that leaves needing tailshaft, diff itself, thread adapters, and possibly handbrake cable if I cant use XF wagon one.

 

And just to double check, if a diff is a LSD the wheels will spin the same way, correct? As in with rear wheels off the ground.

[Jonathan Mark Davidson 169]

got to be the e series cable as they mount differently to the diff

 

the master is the same look it up they have the same part numbers

[Mr Polson 10,214]

Okay so definitely e series cable then.

 

Yeah I know they have the same part number, but the proportional valve is removable so it may not affect the part number?

[Ando81 2,949]

Yeah mate if it's lsd with both wheels off the ground they will spin the same way. Usually an open diff will spin wheels in opposite direction when jacked up.

[gregaust 319]

Master is same ... AS IN NO DIFFERENCE

[gerg 10,871]

Master is same ... AS IN NO DIFFERENCE

 

Confirmed. I did a drum-to-disc conversion recently and thought I might have to remove the residual line pressure valve and found that it had none! The brake drag from takeoff turned out to be a sticky hand brake lever on one caliper.

[Lord_fahrquhar 2,580]

Ea-ed wags diff, keep the springs on them gives a nice ride, reset them lower if you like.

 

Easy, piece of piss job, takes stuff all time to do.

 

Remember though the tailshaft will be different as the eseries run a flange instead of a yoke.  So remember to get the tailshaft too.

[Mr Polson 10,214]

There's a point, springs.

The ute has a "V8" diff (bigger locating pins).

So I'd have to swap over the springs wouldn't I?

 

What's the load rating of wagon springs? I use my ute as a ute and tow with it too when I have to, so I need to retain the weight carrying ability.

[Defective 1,692]

Ea-ed wags diff, keep the springs on them gives a nice ride, reset them lower if you like.

 

Easy, piece of piss job, takes stuff all time to do.

 

Remember though the tailshaft will be different as the eseries run a flange instead of a yoke.  So remember to get the tailshaft too.

Old post, but I'm currently planning my diff swap, and trawling through some old posts.

 

Do the e series wagons springs bolt straight into xf? Wasn't planning on a spring swap, but I'm guessing normal wagon Springs will ride much much much better than my heavy duty Spring pack.