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2007 Tacoma Prerunner 2wd Rear Diff????

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Old 01-17-2010, 11:19 AM   #1
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2007 Tacoma Prerunner 2wd Rear Diff????

I have a 2007 Tacoma DC Prerunner 2wd with a A04A rear diff and would like to know what size diff i have in my axle i.e 8"/8.4", 30 spline/27 spline etc..

I like to do some traveling on state or national parks roads and would like the ability of travelling as far as possible with a locker similar to the Detroit TrueTrac locker,the Aussie locker or a Powetrax/Lock Right

I have looked into the Aussie and Powertrax option but their catalogs does not include newer model Toyotas and when I wrote to them they told me they did not have an option for my 2007 Tacoma.

However this diff/third member could have been used in an older model Toyota and I would really appreciate if anybody knows this information...
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Old 01-21-2010, 01:02 PM   #2
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anybody care to help???
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Old 01-21-2010, 01:05 PM   #3
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http://home.4x4wire.com/erik/diffs/

It's called an 8.4 but technically it's only an 8. 30 spline
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Old 01-21-2010, 01:06 PM   #4
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Not really.... Just kidding bro!

I can't help with advice but I can give a Free bump.
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Old 01-21-2010, 01:23 PM   #5
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Quote:
Originally Posted by akcoma View Post
anybody care to help???
SR5 and TRD sport trucks have the 8.4 diff, compatible w/ the older gen tacos. your gear ratio is 3.73 if your a V6. also the SR5 have an open diff, the sport has a LSD.

TRD ofrroad trucks have a 8.0 diff (also compatible w/ older trucks IIRC) w/ the electronic locker.

all the above info has been covered many times, which you would have found much sooner if you would have searched...
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Old 01-21-2010, 01:25 PM   #6
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Your truck does have the same diff that has been used in alot of Toyota trucks and SUVs.

There's a Powertrax No-Slip for sale here on the forum, or you could get one on eBay.



http://cgi.ebay.com/ebaymotors/Toyot...Q5fAccessories
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Old 01-22-2010, 11:03 AM   #7
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Quote:
Originally Posted by yosh2000 View Post
SR5 and TRD sport trucks have the 8.4 diff, compatible w/ the older gen tacos. your gear ratio is 3.73 if your a V6. also the SR5 have an open diff, the sport has a LSD.

TRD ofrroad trucks have a 8.0 diff (also compatible w/ older trucks IIRC) w/ the electronic locker.

all the above info has been covered many times, which you would have found much sooner if you would have searched...

SR5 is just a trim package. It has nothing to do with the diff size. All of the diffs are the same size; the measure 8" but are called an 8.4. The e-locker diff has a larger bolt pattern to accommodate the e-locking mechanism, but essentially the same ring and pinion size as a regular third member.
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Old 01-22-2010, 12:52 PM   #8
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Quote:
Originally Posted by 98tacoma27 View Post
SR5 is just a trim package. It has nothing to do with the diff size. All of the diffs are the same size; the measure 8" but are called an 8.4. The e-locker diff has a larger bolt pattern to accommodate the e-locking mechanism, but essentially the same ring and pinion size as a regular third member.
i know that, but an SR5 will not have a LSD or locker, which is why i labeled it that way. the OP used the common ref for the diffs, and i did the same, never said anything about the ring sizes...but good info there. OP is talking about the ability of fitting a locker and never specified what trim he had, so i was trying to cover all basis for him.
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Old 01-22-2010, 12:55 PM   #9
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Quote:
Originally Posted by yosh2000 View Post
i know that, but an SR5 will not have a LSD or locker, which is why i labeled it that way. the OP used the common ref for the diffs, and i did the same, never said anything about the ring sizes...but good info there. OP is talking about the ability of fitting a locker and never specified what trim he had, so i was trying to cover all basis for him.
Some SR5 does have LSD.
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Old 01-22-2010, 12:56 PM   #10
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Quote:
Originally Posted by yosh2000 View Post
i know that, but an SR5 will not have a LSD or locker, which is why i labeled it that way. the OP used the common ref for the diffs, and i did the same, never said anything about the ring sizes...but good info there. OP is talking about the ability of fitting a locker and never specified what trim he had, so i was trying to cover all basis for him.
I see your point but the trim package doesn't really matter.
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Old 01-22-2010, 12:58 PM   #11
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Quote:
Originally Posted by raskal311 View Post
Some SR5 does have LSD.
i could be mistaken, but wont admit it until i see proof? only sports come w/ the LSD...
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Old 01-22-2010, 01:02 PM   #12
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Quote:
Originally Posted by raskal311 View Post
Some SR5 does have LSD.
No, the Sports come with the SR5 package. This is where the misconception comes in. You won't find a base model SR5 truck with a LSD
Quote:
Originally Posted by yosh2000 View Post
i could be mistaken, but wont admit it until i see proof? only sports come w/ the LSD...
True yosh, you are not mistaken
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Old 01-22-2010, 05:03 PM   #13
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Quote:
Originally Posted by yosh2000 View Post
i could be mistaken, but wont admit it until i see proof? only sports come w/ the LSD...
Quote:
Originally Posted by 98tacoma27 View Post
No, the Sports come with the SR5 package. This is where the misconception comes in. You won't find a base model SR5 truck with a LSD
I just traded in an '06 DC Prerunner V6 SR5, and it had an LSD rear diff.
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Old 01-22-2010, 08:39 PM   #14
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^ how do you know it was an LSD? was it listed in the window sticker, or did the salesman tell you that?
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Old 01-23-2010, 11:10 AM   #15
akcoma [OP] akcoma is offline
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Talking

Thank you for all the great help....just to summarize then it is a 8.4", called an 8" w/ a 30 spline..... (and I did the searches but all of them refer to offroad, SR5 etc which I beleive did not apply to my truck!!)
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Old 01-23-2010, 11:11 AM   #16
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Backwards. Its an 8" referred to as an 8.4"
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