HJ75 diffs
Submitted: Sunday, May 18, 2003 at 21:49
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wombat
Can anyone confirm that the front diff centre is identical to the rear.
Understandably ratios are same are axle splines and fitment flanges same
Have failed diff in outback short of coming
home on front diff have time and facilities to exchange diff centre.
Reply By: Member - Topcat - Monday, May 19, 2003 at 12:04
Monday, May 19, 2003 at 12:04
Hi Wombat, the diff centres of HJ75 series from year 1980 to 1990 to the best of my knowledge are identical. The centres changed on the front diff to a smaller size when the HZJ series commenced in September 1990. If the diff casings are the same size on your model then the diff centres should be identical. Hope this helps. Cheers. Have Wheels Will Travel
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Follow Up By: andy - Monday, May 19, 2003 at 18:46
Monday, May 19, 2003 at 18:46
Can confirm this. All 1981-1990 40, 45, 47 ,60 and 75 series difs are interchangeable. After 1990 the front diffs were hilux diffs and will not fit in the rear. One thing that is good in the 1981-1990 vehicles is that when the rear diff gets towards the end of its life just simply change the fron over and get a brand new diff in the rear. Most front diffs wear less than 10% of the rear and stay as good as new for ever if only in the front end. Once the almost worn diff is put in the front then it is usually great for years as most 4x4's get minimal use off road. I new of a diff repair
shop that used to do changeover diffs for Toyotas and never pull them apart. They used your own and changed them over. They just swapped the front and rears over and never told the customers. I never went there for repair work after hearing this.
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