Swapping 3.70 gears for my 4.11's??? (1 Viewer)

[Roberto]

Does anyone know if 3.70's third members can be swapped in place of my 4.11's in my 83 BJ42 with full floaters? The 3.70's are from a 87 FJ60 with fine spline like mine I believe. I dont know if the full floating thing really matters?

 

[cruiser_guy]

Yes, you can do that as long as they are not limited slip or locked going into a semi floater. You will need the "C" clips and pin from the 4:11 in the rear if you are a semi floater and you won't need it if you have a full floater.

 

[Roberto]

Mine are full floaters so I wont need anything? Is this an easy or hard swap? I thought I read it was easy on FF's?

 

[Josie'sLandCruiser]

Hi All:

Yes, this should be a fairly easy swap. You need to ensure that the bolt patterns on the pinion flanges of the donor 3.7 ratio third members match your BJ42 driveshafts.

Regards,

Alan

 

[Poser]

The companion flanges on the 87-60 series diffs are not going to be the same as the ones on your 83-BJ42. You will need to swap the flanges over.