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04-18-2018, 06:34 PM
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#1 |
 
Drives: 2013 Camaro 2SS Join Date: Apr 2016
Location: Florida
Posts: 86
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Question on proper shim kit for upcoming 3.91 swap
So I will be dropping the diff myself and am having a shop do the actual gear swap portion early May. I already have the gm 3.91 kit (19329768) and I knew it did not have the shims. I spoke with the shop and I'd like to have them in case they do need them. I am aware most people are saying the old ones can be re-used, so I am looking for just the carrier and pinion shims?
This is what I've come across search the forums, but am not 100% sure these will work? Suggestions. https://www.ebay.com/itm/120846958609 https://www.ebay.com/itm/120846958436 https://www.summitracing.com/parts/m...Reviews=Newest |
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04-18-2018, 07:38 PM
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#2 |
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Evil Genius of Chevrolet
Drives: 2017 Z06, 2019 XTS, 2013 SS Join Date: Feb 2017
Location: New York
Posts: 3,260
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I just picked mine up with a new set of 3.91 and boy are you going to smile lol.
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GPI SS2 VVT cam, ECS Novi 1500 supercharger, Corsa Extreme, Detroit Speed and BMR suspension, Circle D triple disc, Melling oil pump, LS2 chain tensioner, ATI 10% UD, DSX E85 kit, High Energy coils, BTR springs, LS2 Lifter trays, Titanium retainers, hardened push rods, FIC 1000 injectors, ZL1 pump, Mighty Mouse catch can, AEM gauges, Tial BOV, Richmond 3.91 gears, Custom gauge bezels, Speed Engineering headers, Stainless Works HF cats, DSX Aux pump, 710rwhp on E85.
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04-18-2018, 07:59 PM
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#3 | |
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Drives: 2013 Camaro 2SS Join Date: Apr 2016
Location: Florida
Posts: 86
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Quote:
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04-18-2018, 08:56 PM
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#4 |
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Evil Genius of Chevrolet
Drives: 2017 Z06, 2019 XTS, 2013 SS Join Date: Feb 2017
Location: New York
Posts: 3,260
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I'm waiting on my tune so when I'm doing 60 the car says like 84
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GPI SS2 VVT cam, ECS Novi 1500 supercharger, Corsa Extreme, Detroit Speed and BMR suspension, Circle D triple disc, Melling oil pump, LS2 chain tensioner, ATI 10% UD, DSX E85 kit, High Energy coils, BTR springs, LS2 Lifter trays, Titanium retainers, hardened push rods, FIC 1000 injectors, ZL1 pump, Mighty Mouse catch can, AEM gauges, Tial BOV, Richmond 3.91 gears, Custom gauge bezels, Speed Engineering headers, Stainless Works HF cats, DSX Aux pump, 710rwhp on E85.
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04-19-2018, 07:19 AM
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#5 |
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If they are a good ring and pinion shop dont worry about buying a "shim kit", let them handle it they are the pros
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2010 Camaro 2SS/RS
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04-19-2018, 07:32 AM
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#6 | |
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Evil Genius of Chevrolet
Drives: 2017 Z06, 2019 XTS, 2013 SS Join Date: Feb 2017
Location: New York
Posts: 3,260
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Quote:
__________________
GPI SS2 VVT cam, ECS Novi 1500 supercharger, Corsa Extreme, Detroit Speed and BMR suspension, Circle D triple disc, Melling oil pump, LS2 chain tensioner, ATI 10% UD, DSX E85 kit, High Energy coils, BTR springs, LS2 Lifter trays, Titanium retainers, hardened push rods, FIC 1000 injectors, ZL1 pump, Mighty Mouse catch can, AEM gauges, Tial BOV, Richmond 3.91 gears, Custom gauge bezels, Speed Engineering headers, Stainless Works HF cats, DSX Aux pump, 710rwhp on E85.
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04-19-2018, 08:34 AM
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#7 |
        
Drives: 2010 SS 2SS M6 Join Date: Aug 2016
Location: Smithsburg, Md.
Posts: 2,445
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as long as the gear kit is a GM set, the shim (should) swap straight over like it did for me...and I did mine in the garage...and a complete bearing replacement at the same time...everything just swapped over...as long as they get the pinion TQ set properly and the backlash nice and tight(.002-.004 best IMHO) and they use SYNTHETIC gear oil with friction modifier(Mobile LS or Royal Purple)...you will be fine..
I drove for about 500 mi before going to the track for the first time so the gears took a good set to each other(and make sure I did not F anything up!)...and after 1k miles did a drain/refill....inspected the old fluid and didn't find any issues...will be replacin the rear cover soon with a LPW and that will give me a chance to visually inspected the wear pattern and take some pics.... peace btw - I also did a small mod to my diff at the same time...have the shop test the clutch paks...if they don't know how...hmmmm...rather fix any possible probs now vs...good luck OP..
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2010 SS 2SS M6 - Tune by RDP dynoSteve!(Woot) - Daily Driver - 150K! - All work by me...
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04-19-2018, 01:57 PM
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#8 |
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Drives: 2013 Camaro 2SS Join Date: Apr 2016
Location: Florida
Posts: 86
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Thanks for the responses.
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