Need some advice on my diff.

Starts at the flywheel, ends at the hubs, any problems along them lines, ask your questions here.
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Luke preston
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Need some advice on my diff.

Post by Luke preston » Fri Apr 10, 2015 9:18 pm

I've damaged the rear diff in my 1988 sj413.
I'm having trouble finding a replacement.
I've magaed to source a front and rear diff off of a samurai. Can I replace just the rear one and keep the front as it is or will I need to change both over. Also will they fit?

I've read though Scottys post about diffs and I think I should from what I understand

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Jordi
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Re: Need some advice on my diff.

Post by Jordi » Fri Apr 10, 2015 9:23 pm

They are a straight swap but different ratios.

Ideally both should be changed, if you don't and you use 4wd on anything but the slipperiest surface damage will be done as the front and rear wheels will be trying to turn at different speeds.
1988 Samurai - Truck Cab & Tray Back - 1.6 8v & HIF44 - Snorkel - Stack Exhaust - PAS, YJs & 33s - Trussed, Gusseted & Pumpkin Capped Axles - 4.3 R&Ps - 4.16 T/Box - Rear Air Locker - Full Float Back Axle & Discs - RCV Front Shafts - X-Eng Handbrake - Custom Fuel Tank

Luke preston
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Re: Need some advice on my diff.

Post by Luke preston » Fri Apr 10, 2015 9:36 pm

That's what I thought you might say. Guess I'll be busy over the weekend then. Thanks

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ScottieJ
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Re: Need some advice on my diff.

Post by ScottieJ » Fri Apr 10, 2015 10:10 pm

Yes change them both.

What was damaged on the rear diff?
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Luke preston
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Re: Need some advice on my diff.

Post by Luke preston » Fri Apr 10, 2015 10:19 pm

I think the drive shaft bearing broke and went in the pinion gears and damaged the edges of the teeth. Not sure if it's still usable

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Re: Need some advice on my diff.

Post by Luke preston » Fri Apr 24, 2015 11:12 pm

I I know have these new diffs for front and rear. Went to fit them and they are the wrong size. The housing is allot smaller on the new one. i was told when I brought them they were off of a sammurai. Is this in any way usable ie. Internals . From when I have read on here sounds like they are off of a sj410 . Any ideas anyone?

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Jordi
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Re: Need some advice on my diff.

Post by Jordi » Fri Apr 24, 2015 11:52 pm

Sounds like 410. Totally useless to you.
1988 Samurai - Truck Cab & Tray Back - 1.6 8v & HIF44 - Snorkel - Stack Exhaust - PAS, YJs & 33s - Trussed, Gusseted & Pumpkin Capped Axles - 4.3 R&Ps - 4.16 T/Box - Rear Air Locker - Full Float Back Axle & Discs - RCV Front Shafts - X-Eng Handbrake - Custom Fuel Tank

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Re: Need some advice on my diff.

Post by Luke preston » Mon Apr 27, 2015 9:02 pm

What diff will a Spanish sj413 samurai have in it?

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Re: Need some advice on my diff.

Post by dan_2k_uk » Mon Apr 27, 2015 9:29 pm

Should be a 3.7:1 the only way to tell for sure is to physically check the ratio.
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