The Diff Shop - Services


Diff conversion

For Race Cars, Street Cars, Hot Rods, High Performance 4-link Rear ends etc.


Race gear box

Hand rebuilds for precise workmanship. Straight cut and dog box kits fitted selector and linkage rebuild and fully rod ended or rose jointed and after market kit units fitted that accurate gear change. 

Muncie, Holengers, Texamatic, Tremak, Top loaders super T10s, Saginals, Richmonds and many more.


Diff Straightening

You need to ensure that your diff housing is running true through the center and after yeatrs of abuse or welding on the housing for modifcations the housing can bow at each end, which will run your rear wheels on strange angles and wear your tyres out on the wrong places and put extra load on your wheel bearings. We have a jig setup to repair this problem and other methods of setting up your rear Diff housing back true. 


After modification of your vehicle whether it be engine, auto to manual, tyre size change or whatever you do your ratio may alter and not suit your needs. So we can offer you some options, for more get up and go on take off or for pulling loads on a little less boggie and some longer legs on the open road. It’s just a matter of getting another ratio crown and pin and fitting it to your vehicle and this will alter your speed / rev’s to your required rate.

Ratio changes


From your farm truck to your full-fledged 4X4 Off Road Machine, we can supply, modify and fit all of your Off Road upgrades from: 

  • Lockers
  • LSD Fitment or Recondition 
  • Ratio Changes Suspension Lifts / Body Lifts 
  • Diff Angle Alterations 
  • Differential Hub Servicing 
  • Breathers 
  • Drive Shaft Universal Repairs

4 x 4 modifications


  • Disc brake conversion 
  • Drive shaft repairs / universal joint replacements, balancing, lengthening or shortening
  • Restoration work 
  • Axle alterations lengthen / shorten 
  • Hosing alterations lengthen / shorten
  • Diff oil coolers and pumps 
  • Back hats bigger for more oil capcity to cool running temperature down 

Other services


  • Hi-lux, Hiace, Surf, Landcruiser etc.
  • Full bearing-kits available 
  • Seals pinion, axle, wheel bearing kits 
  • Collapsable spacers or solid LSD units 
  • Lockers 
  • Crown wheel and pinions 
  • Housings 
  • Axles 
  • I.F.S. performance parts

We have been dealing with these Diffs for many years now and have established how to maximise there limited slip and produce more rear / front drive for those towing, mud plugs or faming uses. Also race / rally covered for all applications.

Toyota