07-31-2019, 02:48 PM | #1 |
Drives: 2014 SS 2010 SS 93 Camaro z28 Join Date: Apr 2017
Location: Ohio
Posts: 254
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ZL1 diff question
So been looking for a ZL1 diff along with 30 other people in the ZL1 section and there so expensive on eBay I think I’ll buy a new one found the 3.73 ZL1 for 2100. Brand new, the z28 is little cheaper and lighter same size ring gear I believe but aluminum case will these hold up as well? Anyone try testing 1 on 900 plus? Thanks Tommy
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07-31-2019, 02:56 PM | #2 |
Team 913
Drives: '14 ZL1, '15 Jeep GC, ‘22 Ram 2500 Join Date: Apr 2015
Location: USA, Central CA
Posts: 1,119
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ZL1 at a minimum if you are drag racing at 900rwhp
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07-31-2019, 03:05 PM | #3 |
Drives: 2014 SS 2010 SS 93 Camaro z28 Join Date: Apr 2017
Location: Ohio
Posts: 254
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Yes drag racing may be 800 not sure single turbo but weight is killing me steel block and 4l80e turbo and piping I’ve added 300lbs to this pig
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07-31-2019, 08:22 PM | #4 |
Team 913
Drives: '14 ZL1, '15 Jeep GC, ‘22 Ram 2500 Join Date: Apr 2015
Location: USA, Central CA
Posts: 1,119
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Strange makes a rear end for the 5th gen ... 20lb heavier than stock
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07-31-2019, 08:51 PM | #5 |
Drives: 2014 SS 2010 SS 93 Camaro z28 Join Date: Apr 2017
Location: Ohio
Posts: 254
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Yea I’ve seen most of the aftermarket stuff but they priced themselves out of the market in my opinion
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08-12-2019, 11:14 AM | #6 |
Drives: 2010 Turbo LS3 Join Date: Dec 2009
Location: Palm Bay, FL
Posts: 2,704
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Just to be clear, the Z28 is still the 218mm ring gear in an aluminum housing, but has a Torsen style carrier and cooler. The Zl1 is a 250mm ring gear with a clutch style carrier in a cast iron housing. Much stronger than the Z28 diff, but much heavier too.
IMO, ZL1 for drag racing, Z28 for road racing or just build a stock 10 bolt because Z28 rears are as much as a ZL1. The 9 inch, S60 stuff is for guys running under 10 sec. It also matters how you are getting to 900. If it's a PD blower, you need more rear. Turbos and centri blowers generally don't come off the line as hard. There are 900hp turbo guys running 10 bolts.
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2010 SS - On3 kit with downpipe cutout, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1/1LE brakes.
2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. ZL1 brakes. |
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