2.77 to 3.27 is this all I need?
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Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
2.77 to 3.27 is this all I need?
Ok, I order to go from my 2.77 to 3.27's, I am going to need the pinion, ring gear, and carrier correct? Anything else that I'll need?
This is what I got so far:

Thanks!
This is what I got so far:

Thanks!
Joined: Aug 2006
Posts: 12,804
Likes: 103
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: 2.77 to 3.27 is this all I need?
are those caps from your rear or a different? they are all different and specific to each individual rear, as well a left and right. do not mix them up or you will be f-ed.
if the 3.27 requires a different carrier, then yes, all you need is the gears and the new carrier, unless you get a new set of gears, then you can get a gear set already set up for whatever carrier you already have. new bearing are also a good idea. you can use your old yoke, the splines are the same for all 7.5 10 bolts.
you also need the appropriate speedo correction gears.
if the 3.27 requires a different carrier, then yes, all you need is the gears and the new carrier, unless you get a new set of gears, then you can get a gear set already set up for whatever carrier you already have. new bearing are also a good idea. you can use your old yoke, the splines are the same for all 7.5 10 bolts.
you also need the appropriate speedo correction gears.
Thread Starter
Moderator




Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Re: 2.77 to 3.27 is this all I need?
Thanks! Everything in that picture is from a 3.27 rear. Looks like all I need is the carrier and ring gear from that rear end.
Last edited by IROCThe5.7L; Mar 25, 2007 at 11:59 AM.
Joined: Aug 2006
Posts: 12,804
Likes: 103
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: 2.77 to 3.27 is this all I need?
like i said, use your bearing caps, dont use the ones from the other rear.
Thread Starter
Moderator




Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Member
Joined: Sep 2006
Posts: 141
Likes: 0
From: Nova Scotia
Car: 1984 Trans Am
Engine: 305
Transmission: Auto
Re: 2.77 to 3.27 is this all I need?
If I'm not mistaken, ring and pinion gears are matched sets which are lapped together. You can not mix non matching part without something bad happening.
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