HOW HARD IS IT TO CHANGE
YOUR DIFF RATIOS?DIFF RATIO QUICK
REFERENCE GUIDE5 WAYS TO BUSH-PROOF
YOUR DIFFDiffs are one of those things many people assume are easy to
work on because they are small and only have a small number
of parts. Unfortunately, this couldn’t be further from the truth.
A differential must be setup correctly for it to function
properly and reliably. For instance, the bearing caps are not
interchangeable, the bearing preload must be spot on and the
gear mesh must be setup correctly or you’ll quickly break teeth
off your new gears. If you don’t know what we’re talking about at
this point, it’s best you leave it up to a professional.
If you’ve got a workshop manual and work your way through
it, it is possible to set your diff up correctly at home, providing
you have a workshop manual, a quality dial gauge, torque
wrench and meshing paint.
NISSAN
GQ 2.8 Diesel = 4.625:1
GQ 4.2 Petrol = 4.11:1 or 3.9:1
GQ 4.2 Diesel = 4.11:1
GU 2.8 Diesel = 4.625:1
GU 3.0 Turbo diesel = (auto) 4.375:1 (manual) 4.11:1
GU 4.2 Turbo diesel = (wagon) 3.9:1 (ute) 4.11:1
GU 4.8 Petrol = (auto) 3.54:1 (manual) 4.375:1
TOYOTA
LandCruiser 40/60/70 = 4.11
LandCruiser 78 R151F = 4.3
LandCruiser 78 H150F = 4.10
LandCruiser 80 = 4.10
LandCruiser 100 = (auto) 3.9 (manual) 4.3
- Never perform a snatch recovery in reverse. This loads up
the back of edge of the crown wheel and pinion gear teeth,
sheering them off. - Upgrade the crushable pinion spacer to a solid space and
shims to prevent the gears walking apart under load. - Replace the carrier bearings to heavy-duty units.
- Brace the diff housing with a weld-on diff brace kit to
prevent housing and axle warps, particularly near the
steering knuckle. - Install a selectable diff locker to strengthen the centre and
increase your 4WD’s off-road capability.
CAPE YORK
SAFARIS
4WD TAGALONG
PH: 07 4057 4096
http://www.tagalongtours.com.auCAPE YORK (18 Days)
SIMPSON DESERT (12 Days)
TRANSCONTINENTAL (29 Days)
GULF SAVANNAH (10 Days)4WD254-25