3.91 gears questions - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

3rdgen3 · 08-11-2016, 10:51 AM

Quote:

Originally Posted by fastbroshi

I just had a shop give me a quote and they said with my mileage, 59k, I might want to do the bearings as well. What bearings is he talking about? All I see in this kit are shims/spacers and a crush sleeve.

The GM 3.91 basic kit does not come with bearings, actually I dont think the "full" kit does either.

The bearings they're talking about are the diff carrier and pinion bearings. A 'Full' kit will come with new bearings and shims. A 'half' kit (like what the GM 1le 3.91 gear kit comes with) just has the basics needed to swap the gears into a used SS "pumpkin" while reusing the stock bearings and shims, etc. It comes with all new bolts and gaskets and pinion seal and cover seal, etc.

JCunningham · 08-11-2016, 11:32 AM

you will need the pinion bearing no mater what because they stretch when removed. the carrier bearing are like $13 a each

RS Speedriver · 01-31-2017, 07:56 PM

I am stuck and need some help. My buddy has a 2015 z28 and is selling his 3.91s setup. My question is will it fit on my 2015 2ss? I dont know anything about z parts so i am stuck. Any help would be great. Thanks guys

JCunningham · 01-31-2017, 11:16 PM

im almost positive it will.

RS Speedriver · 02-01-2017, 02:15 PM

Almost like how certain are you.

frenchsquared · 02-01-2017, 02:19 PM

Im pretty sure it will fit as well. But it isa very different rear end. Might not be what you want. Only the Z28 has that style limited slip thing... There are articles online about it.

Most guys want one form a ZL1 the Z28 sucks in the 1/4 mile. All depends on what your doing with the car.

Pewter · 02-01-2017, 03:16 PM

the z28 diff is a direct swap other than the cover has a cooler built into it, so you will either have to cap it off or plumb it in. or buy a ss cover. the breather is also in a slightly different place but no big deal. the limited slip is different from your ss limited slip, it is a torsen, look it up its better in every way. i jump all over it if hes cutting you a deal
edit: that was assuming he is selling his whole differential to you

RS Speedriver · 02-01-2017, 06:19 PM

Yea he is selling me his diff axles and driveshaft. And its pretty much brand new. 37 miles on that set up. And off a m6 as well so thats a plus. As long as it all lines up and i have no issues with it. Then we good. Cost me 1000 bucks US.

JCunningham · 02-01-2017, 11:44 PM

good deal

sean_reaves33 · 12-24-2020, 09:31 PM

Quote:

Originally Posted by RS Speedriver

I am stuck and need some help. My buddy has a 2015 z28 and is selling his 3.91s setup. My question is will it fit on my 2015 2ss? I dont know anything about z parts so i am stuck. Any help would be great. Thanks guys

I have a 2011 camaro ss put the 3:91 gears..

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08-11-2016, 11:32 AM	#16
JCunningham Drives: 2017 2SS M6 Join Date: Jun 2013 Location: WNY Posts: 7,070	you will need the pinion bearing no mater what because they stretch when removed. the carrier bearing are like $13 a each __________________ real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1

01-31-2017, 11:16 PM	#18
JCunningham Drives: 2017 2SS M6 Join Date: Jun 2013 Location: WNY Posts: 7,070	im almost positive it will. __________________ real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1

02-01-2017, 02:19 PM	#20
frenchsquared Drives: 15 Z28, 01 Corvette, 96 Corvette Join Date: Dec 2016 Location: Colorado Posts: 863	Im pretty sure it will fit as well. But it isa very different rear end. Might not be what you want. Only the Z28 has that style limited slip thing... There are articles online about it. Most guys want one form a ZL1 the Z28 sucks in the 1/4 mile. All depends on what your doing with the car. __________________ 2018 Sierra RCSB \| 2015 Z28 Camaro \| 1989 B2200 with a 327 \| 1996 LT4 Z51 Corvette \| 1973 427 Nova

02-01-2017, 03:16 PM	#21
Pewter Drives: '10 ABM 2SS/RS M6 Join Date: Dec 2014 Location: Iowa Posts: 71	the z28 diff is a direct swap other than the cover has a cooler built into it, so you will either have to cap it off or plumb it in. or buy a ss cover. the breather is also in a slightly different place but no big deal. the limited slip is different from your ss limited slip, it is a torsen, look it up its better in every way. i jump all over it if hes cutting you a deal edit: that was assuming he is selling his whole differential to you __________________ Kooks \| SW \| GPI \| BTR \| ADM \| Bo White TB \| BMR \| FE6 \| Hotchkis \| 3.91s \| Truetrac \| Pegasus

02-01-2017, 11:44 PM	#23
JCunningham Drives: 2017 2SS M6 Join Date: Jun 2013 Location: WNY Posts: 7,070	good deal __________________ real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1

01-31-2017, 07:56 PM	#17
RS Speedriver Drives: 2018 camaro 1ss 1LE Join Date: Apr 2013 Location: B.C. Pitt Meadows Posts: 305 View My Garage	I am stuck and need some help. My buddy has a 2015 z28 and is selling his 3.91s setup. My question is will it fit on my 2015 2ss? I dont know anything about z parts so i am stuck. Any help would be great. Thanks guys

02-01-2017, 02:15 PM	#19
RS Speedriver Drives: 2018 camaro 1ss 1LE Join Date: Apr 2013 Location: B.C. Pitt Meadows Posts: 305 View My Garage	Almost like how certain are you.

02-01-2017, 06:19 PM	#22
RS Speedriver Drives: 2018 camaro 1ss 1LE Join Date: Apr 2013 Location: B.C. Pitt Meadows Posts: 305 View My Garage	Yea he is selling me his diff axles and driveshaft. And its pretty much brand new. 37 miles on that set up. And off a m6 as well so thats a plus. As long as it all lines up and i have no issues with it. Then we good. Cost me 1000 bucks US.