03-14-2020, 08:48 PM | #1 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,815
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ZL1 A10 Differential removal tips
This isn't incredibly difficult but a few things need to be stated.
The independent differential pumpkin (center section) is held in place with three fastening points: one accessible from the rear of the vehicle: a 24mm headed M16 x 2.0 bolt which goes through the subframe and two forward bolt/nut combo which require an 18mm ratchet & wrench. You must first remove the axle retaining bolts on each side which works easiest with an impact & extension with appropriate torx (star) socket. You will need to put the car in neutral and rotate the axle to gain access to all of the bolts. They are pretty well "loctited" in position with GM green loctite so be careful and don't round the heads. I removed the wheel speed sensor and repositioned the upper control arm to get straight line access to the bolts. You must remove the cooling lines under the diff. After pushing the black plastic rings away, use a pick to release the retaining clips in all four positions. Remove the 10mm retaining bolt. Be careful not to lose the little clips. Remove these lines and set aside. Unplug the e-diff weatherpack and unplug the passenger suspension position sensor. There is a control module that has two 18mm sized lines that must be removed. These lines continue through the subframe and have a peculiar Eaton quick connect at the differential. A small trim removal tool fork needs to be inserted between the rubber part and the differential. If it takes a lot of force, you are doing it wrong. Once the appropriate sized fork is placed there, it simply pops off. Hopefully this info will be useful to someone. Thought this info was worthy to share.
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
03-14-2020, 09:09 PM | #2 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,815
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probably wondering why I removed the differential...the top bolt broke on track about 6 months ago and the track service "fixed" it. In the process, they stripped the aluminum housing on the top bolt so I am going to install a thread insert. No way to do this without dropping the entire center section. Pics are ugly. I knew something was wrong because there was a persistent clunk which was metal on metal and very aggravating.
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
03-15-2020, 10:56 AM | #3 |
Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017
Location: North Ga
Posts: 1,794
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While it's basically a non issue as either option will outperform the original, helicoils are slightly stronger than timeserts based on testing we did in one of my materials courses back in the day. If you haven't already purchased the timeserts can get the helicoils cheaper, I'd go with them.
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Baby Blue
2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned |
03-15-2020, 11:09 AM | #4 | |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,815
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Quote:
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
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03-15-2020, 09:00 PM | #5 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,815
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thread repair pics
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
03-17-2020, 11:38 AM | #6 |
TWG1
Drives: 2019 Camaro ZLE Join Date: Nov 2019
Location: PENSACOLA, FL
Posts: 179
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Nice work! Aluminum: great for drivers, not so great for mechanics. I’m actually surprised how seldom aluminum seems to strip these days. Back in my motorcycle days, it seemed a routine occurrence to fix threads.
Either the materials/engineering have gotten better, or I’ve become less of a meathead mechanic.
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2019 ZLE M6
2019 ZL1 A10 (Sold) 1967 Jaguar XKE Series 1 Roadster 2021 F150 Powerboost (on order) |
03-17-2020, 04:21 PM | #7 | |
Drives: '18 2SS/EU (+Recaros) M6 Red Hot Join Date: Nov 2018
Location: Sweden
Posts: 260
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02-11-2024, 05:10 PM | #8 | |
Drives: 2018 Camaro SS 1LE Join Date: Aug 2018
Location: Tampa Florida
Posts: 1,980
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Quote:
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2000 Miata - aventi storm wheels, roll bar.
2019 Mustang GT pp1 - svt pp2 wheels, mbrp cat back, sync 3 upgrade, p1x procharger + stg2 intercooler. 2018 Colorado zr2 - zr2 sport bar, showcase spare tire. 2018 Camaro SS 1LE - GM cai, black bowties, suede knee bolsters, 1le plate frame, black fuel door, dark tails + 3rd brake light, euro side markers + led's, GM all weather floor mats, velossatech big mouth, GM strut brace. 2017 Corvette Grandsport (sold) - untouched. 2006 GTO (sold) - iat relocation, air box mod, monero side marker lights. |
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03-13-2024, 01:42 PM | #9 |
Geoff
Drives: 2020 ZL1 Green Join Date: May 2013
Location: Houston
Posts: 1,743
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I'm also interested in the bleeding procedure for the ELSD pump
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