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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

will a front V6 diff fit a front 4cyl diff?

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Old May 17, 2008 | 05:05 PM
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will a front V6 diff fit a front 4cyl diff?

found a potential deal on some diffs, i know the rear will, but will the front v6 diff from a 93 runner fit my 4cyl 86 runner
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Old May 17, 2008 | 05:21 PM
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i think it will bolt up, but the 4runner diff has that add thing on there i think?
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Old May 17, 2008 | 07:32 PM
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anyone?
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Old May 17, 2008 | 07:38 PM
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YES absolutely.
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Old May 17, 2008 | 07:40 PM
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i'm not sure if the 93 is ADD, will it still work if it is?
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Old May 17, 2008 | 07:46 PM
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It will bolt up, but will you might want to convert the add one to non-add by switching the tube(not sure the correct term). Unless you want to put in all the add components
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Old May 17, 2008 | 07:48 PM
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i don't want ADD
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Old May 17, 2008 | 11:30 PM
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Originally Posted by 904_runner
It will bolt up, but will you might want to convert the add one to non-add by switching the tube(not sure the correct term). Unless you want to put in all the add components
I have one ADD type but I changed the tube from a non ADD front diff.I did the change because of the 4:56 gears built in stock.
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Old May 18, 2008 | 01:15 AM
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I bolted a V6 diff in the front of my 4cyl truck... You'll be fine.
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Old May 18, 2008 | 06:57 AM
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I have V6 diffs in the front and rear of my SAS truck.
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Old May 18, 2008 | 07:18 AM
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Originally Posted by jjrgr21
i'm not sure if the 93 is ADD, will it still work if it is?
You can clamp the sleeve in the actuator and lock it into 4WD. You'll need to add manual hubs, otherwise you'll always be in 4WD. Make sure you plug up the vacuum lines that move the sleeve from 2WD to 4WD mode. I've helped someone do this before and it works well.

Here's a link:

http://toyota.off-road.com/toyota/ar....jsp?id=399612
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Old May 18, 2008 | 12:26 PM
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thanks all
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Old May 18, 2008 | 05:42 PM
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can't i just switch the 3rd's
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Old May 18, 2008 | 05:50 PM
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Originally Posted by seafarinman
I have V6 diffs in the front and rear of my SAS truck.
Last time I checked the front diff from a '93 runner was a 7.5" IFS unit...

Originally Posted by jjrgr21
can't i just switch the 3rd's

There is no 3rd member on an IFS diff so to speak. I suppose you could swap the "chunks" out of it but a complete diff swap is the way to go if you're able.
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Old May 18, 2008 | 06:42 PM
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From: Thurston County WA State
I have a SAS truck so I am running V6 rear third members in both front and rear axles.

Originally Posted by ovrrdrive
Last time I checked the front diff from a '93 runner was a 7.5" IFS unit...






There is no 3rd member on an IFS diff so to speak. I suppose you could swap the "chunks" out of it but a complete diff swap is the way to go if you're able.
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Old May 18, 2008 | 10:35 PM
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Originally Posted by jjrgr21
can't i just switch the 3rd's
Yes.

Here are more links to help you make a decision.

http://toyota.off-road.com/toyota/ar....jsp?id=274535

http://home.4x4wire.com/erik/diffs/

Last edited by YotaJunky; May 18, 2008 at 10:37 PM.
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Old May 18, 2008 | 10:43 PM
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I need to inform while I changed tube from regular IFS to a ADD tube I had to add a new seal also because the ADD type didnt have one.
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Old May 19, 2008 | 01:16 AM
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Originally Posted by seafarinman
I have a SAS truck so I am running V6 rear third members in both front and rear axles.
Did you read the first post in this thread?

I understand what you have and what you did, but how does that help to answer the question in the first post?

He wants to know if he can use the front diff from a '93 runner which is IFS. Telling him it will work because you swapped a 3rd into your solid axle doesn't do him any good...

Last edited by ovrrdrive; May 19, 2008 at 01:18 AM.
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