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RE: Pros/Cons

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RE: Pros/Cons - 3/11/2008 1:06:01 AM   
TripleBlackBlazer


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I didn't get it.  The auction ends in 4 days.  Wouldn't want to bid on it too early and jack up the price.  Common sense ya know.

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RE: Pros/Cons - 3/16/2008 7:43:36 PM   
TripleBlackBlazer


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I found out that the POWERTRAX I listed earlier won't fit in an open carrier upon further investigation.  I ended up buying this one off eBay, should have it before Thursday and will get it installed this weekend when I visit home.  Kinda wish I had held off on changing my fluid, but it had to be done to find out what I needed.

No more one-wheel-peels!


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RE: Pros/Cons - 3/17/2008 9:02:53 AM   
Dturner14


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Got a question for you you said that it when You turn you hear the humming? Does it do it only when You turn one way or it doesnt matter which way you turn? Just wondering because Ive had a problem a few years ago like that on my 89' Blazer, but it was only when you turned right and it was the bearings in the rearendand I had the same metal shaving on my magnet. (Left Inner Bearing was short on rear end)

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RE: Pros/Cons - 3/17/2008 11:23:37 AM   
TripleBlackBlazer


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Doesn't matter which way I turn.  It happens because on turns one wheel is spinning faster than the other and you can really hear the spider gears.  I paid for the posi late last night so it should've gone out this morning.  Can't wait to get it installed this weekend!

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RE: Pros/Cons - 3/17/2008 11:25:08 AM   
WolfPack


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Ahhhh I'm jealous..I want one real bad.  It would be so nice not to just spin the wheels on a slight incline every time 

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RE: Pros/Cons - 3/30/2008 1:15:46 PM   
TripleBlackBlazer


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Posi came on Friday, not sure when installation will happen.  I may have to price out local garages...

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RE: Pros/Cons - 3/30/2008 2:18:06 PM   
WolfPack


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Haha...be sure and ask the shop if you can hang around and take pics for a nice how-to on your favorite website 

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RE: Pros/Cons - 4/6/2008 3:04:39 PM   
TripleBlackBlazer


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OK, so we've had a BLAST so far putting this thing in. /sarcasm

My old pin was somehow melded to the carrier and it took quite a bit of convincing (read hammering, cutting wheel, cursing) to get it out.  I suppose I drove too long on a bad rear end. 

The good news is it's out and all set for the new posi.

The bad news is I need a ring gear spacer to put it in.  The two carriers are the same height physically, but the mounting area on the posi sits lower (if the carrier is on end) than the stock one that came out.  There's a machine shop literally right around the corner from me so I'm hoping to use some connections to have a 1/4" spacer made.

As of now, she's sitting on jackstands waiting for a new rear end.  I'm glad she's patient!

EDIT: Oh and pics and vidz again once it's all buttoned up.


< Message edited by TripleBlackBlazer -- 4/6/2008 3:17:39 PM >


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RE: Pros/Cons - 4/6/2008 3:43:56 PM   
swartlkk


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You really have to measure from the seat where the bearing rests to the seat where the gear rests.  You cannot just put them side by side on a table and say that they are different.  If you set them up on machinist parallels resting on the surface that the bearing seats on, then compare, you will get the true difference.

Some diffs are longer than others in this area.


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RE: Pros/Cons - 4/6/2008 4:24:17 PM   
TripleBlackBlazer


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I understand what you mean Kyle, but it doesn't seem possible to put the old ring gear onto the new carrier without some sort of spacer.  I don't know if the 3.23's that were supposedly originally on the G80 are thicker than my 3.42's or what. 

I know it's not exactly a level surface in some of the pics but can you see how much of a difference it is.

I'm sure a machinist will be able to get a much closer measurement than my 1/4".

EDIT: Sorry, forgot my img tags.


< Message edited by TripleBlackBlazer -- 4/6/2008 5:11:05 PM >


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RE: Pros/Cons - 4/6/2008 5:36:46 PM   
WolfPack


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I'm jealous.  I want one.  

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RE: Pros/Cons - 4/6/2008 5:36:49 PM   
swartlkk


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Are you sure you got the proper diff??  That looks to be way off and I'm not sure I would be comfortable with a spacer in there...

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RE: Pros/Cons - 4/6/2008 5:51:33 PM   
TripleBlackBlazer


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Here is the link to the eBay auction.  I am at the mercy of his description.  If it's a G80 it should fit fine.  I'm open to suggestions other than using a spacer.

EDIT: Open to suggestions short of buying a new rear diff of course.  LOL


< Message edited by TripleBlackBlazer -- 4/6/2008 6:06:57 PM >


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RE: Pros/Cons - 4/6/2008 6:12:40 PM   
swartlkk


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What does the overall measure from outside of bearing race to outside of bearing race?  Are they the same length overall?

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RE: Pros/Cons - 4/6/2008 6:14:13 PM   
drperry


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You might need the G80 carrier... Or something... It shouldn't be that much out...

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RE: Pros/Cons - 4/6/2008 6:15:58 PM   
swartlkk


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Wonder if the ring gear is different if you have a G80 vs a non-g80?...

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RE: Pros/Cons - 4/6/2008 6:19:46 PM   
WolfPack


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This is not promising.  I was hoping to pick a locker knowing it was 7.625 and 28 spline...oh dear..

Why would using a spacer be bad?


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RE: Pros/Cons - 4/6/2008 6:25:24 PM   
swartlkk


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On such a high stressed component, adding a spacer is never a good idea.  The connection is not going to be as strong as it is when directly mounting.  That and the spacer, unless machined VERY precisely, will not be flat, nor will it be as strong (material dependant) as the cast iron diff carrier.


Dug up this picture of when I serviced the rear diff on my old Bravada.  Looks like the carrier is the same as the one you have, but I cannot tell if anything else is different...


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RE: Pros/Cons - 4/6/2008 6:25:35 PM   
TripleBlackBlazer


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I thought the piece I had was the carrier. 

And Kyle, they look to be about 7 1/4" from outside of bearing race to outside of bearing race. Both of them.

EDIT: And your ring gear looks a LOT thicker.


< Message edited by TripleBlackBlazer -- 4/6/2008 6:33:00 PM >


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RE: Pros/Cons - 4/6/2008 6:28:50 PM   
swartlkk


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I'm not sure that it is though...

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