New 456's...need some clarification on the swap
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New 456's...need some clarification on the swap
I've got an 89 4runner that came with 410s with stock manual hubs. I picked up a set of front and rear differentials from a 90's model 4runner and the front had ADD with automatic locking hubs. I have the rear 456's in and I am doing the front today but I need some clarification because I read conflicting reports online. If I want to maintain my manual hubs in the front, I have heard all I have to do is switch that tube out from my diff and put it on the new diff. My question is: do I have to purchase anything else or replace anything else for this to work? I've read there may be some kind of gasket that I need but I am not sure.
Right now I plan on buying new gear oil, crush washers for the filler\drain plugs and that's it.
Thanks guys!
Right now I plan on buying new gear oil, crush washers for the filler\drain plugs and that's it.
Thanks guys!
#2
Here's the diagrams showing where they are on each type.
PNC 41304P P/N 41311-35032
Non-ADD
ADD
Here's one already done.
Last edited by MudHippy; 11-19-2011 at 03:07 PM.
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Thanks a heap, MudHippy! That was crazy helpful. I decided to just pick one up at Oreilly's since it was only $8...might as well replace it while I'm in there. That little cog with the needle bearings you had to remove off the ADD one was a nice little surprise. Those needle bearings went everywhere! I'm pretty sure I got them all out with my trusty magnet and I took off the carrier case just to make sure so I should be good to go. Now I'm ready for some snow. This year I have brand new 31" tires, 456 gears and a rear locker so I should have some fun!
Thanks again!
Thanks again!
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