Does anyone know if the front diff centre housing on an HZJ79 is the same as HZJ75? Is it a straight bolt on swap? Does it have the same 4.111 ratio (37/9)?
Thanks
Paul
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Is the HZJ75 front diff the same as HZJ79?
Moderators: toaddog, Elmo, DUDELUX
Re: Is the HZJ75 front diff the same as HZJ79?
79 is coil and 75 is leaf so no straight swap
Re: Is the HZJ75 front diff the same as HZJ79?
I meant just the centre differential carrier that contains the ring & pinion gears and pinion seal (not the whole diff assembly).
Regards,
Paul
Regards,
Paul
Re: Is the HZJ75 front diff the same as HZJ79?
Nope, 75 Series is much bigger and stronger than the 79 series. I think the 79 has more in common with the 80 series front diff, but not sure. Is it a high pinion front diff?
Re: Is the HZJ75 front diff the same as HZJ79?
HZJ75 has the high pinion 8 inch ring gear (smaller diff than the rear) and this is teh same as the 80 series. I know the ARB air locker is the same for both HZJ75 and HZJ79 but I just don't know if the whole carrier is the same.
The pre 1990 HJ75 had the bigger front diff.
Regards,
Paul
The pre 1990 HJ75 had the bigger front diff.
Regards,
Paul
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