06-04-2018, 10:10 AM | #1 |
GPI Sales Consultant
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Motive vs. Richmond vs. Yukon for 4.10's
Well, I'm in the market for some gears. I bought a used differential last summer with Richmond 4.10's in it. It came out of a stick turbo car, but I was told it had never seen the track or anything more than street tires. Who knows - the price was fair, and it was awesome in my bolt on LS3 car.
Fast forward almost exactly a year, and I now have a little more power, and a little more tire under the car, and the gears are toast - I've got a nasty bang/cluck/rough spot once a tire revolution under load, it's silent coasting - pretty sure that's a tooth on the ring gear gnarled up, and it's gonna eat itself in short order. I had actually swapped on my street tires for a few easy laps at Watkins Glen, and was driving home, stood on it hard in second, and it blew the tires off. Traction control caught it, snapped the power off, and then back on, and I'm pretty sure that's when it got hurt. Got progressively noisier on the next 50 miles driving home. I'm definitely staying 4.10s - I'd go more gear if they had an option. The question is who's do I go with? I've read Richmond's thread about the 4.10 vs. revised 4.11, and I've read where people have still broken those. I don't think as many guys are running Motive or Yukon - but I've not read about anybody breaking them. I'd love to hear input on any experience you guys have had, especially on Yukon's or Motive's.
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GPI Max Package 2.0: Brodix BR7 heads/GPI porting, MAX3 cam, ST2116LSR, BSR Max Lift rockers, LS7 LSXR with 103mm TB, Vararam OTR, Mcleod RXT, G-Force/Strange 9" IRS setup with 4.63 gear. 551whp, 11.1@124mph.
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06-04-2018, 10:17 AM | #2 |
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,018
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Ive got 18k miles on my Motives
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Retired wanna be cylinder head porter
2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X |
06-04-2018, 10:18 AM | #3 |
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,018
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I wish the 4.33s were still available.
__________________
Retired wanna be cylinder head porter
2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X |
06-04-2018, 11:24 AM | #4 |
Drives: 2012 Camaro 2SS RS Join Date: Jul 2017
Location: US
Posts: 43
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Planning on going with the GM 3.91s asap in my bolt on M6 car how do you like the 4.10s? Still decent on the highway and top speed first still usable at all lol
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06-04-2018, 01:35 PM | #5 |
GPI Sales Consultant
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Yea, 4.10's are the right choice for an M6 car IMO, especially if you've got an aggressive cam. ~2000rpm in 6th at 70mph, which is just fine. First is definitely still use-able - pulls to 48mph @ 7200rpm with a 28" tire, which isn't really that aggressive IMO. Top speed would be 174mph@7200rpm in 5th, if you're brave enough.
__________________
GPI Max Package 2.0: Brodix BR7 heads/GPI porting, MAX3 cam, ST2116LSR, BSR Max Lift rockers, LS7 LSXR with 103mm TB, Vararam OTR, Mcleod RXT, G-Force/Strange 9" IRS setup with 4.63 gear. 551whp, 11.1@124mph.
Got a question about a GPI product? Feel free to shoot me a message! |
06-04-2018, 02:56 PM | #6 |
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,018
|
Mine is a daily and its th400 swap.
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Retired wanna be cylinder head porter
2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X |
06-05-2018, 06:12 AM | #7 | |
Drives: 2012 Camaro 2SS RS Join Date: Jul 2017
Location: US
Posts: 43
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Quote:
.620/.611 separation could use lower gears for sure tho im hoping the 3.91 will be low enough to give me some more torque and still be good for highway cruising |
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06-05-2018, 07:18 AM | #8 | |
GPI Sales Consultant
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Quote:
Going to a 26" tire would put me at 6475rpm which would be pretty nice, and a 4.56 with a 28" tire would be 6700 - perfect. Too bad they don't make that for our rear.
__________________
GPI Max Package 2.0: Brodix BR7 heads/GPI porting, MAX3 cam, ST2116LSR, BSR Max Lift rockers, LS7 LSXR with 103mm TB, Vararam OTR, Mcleod RXT, G-Force/Strange 9" IRS setup with 4.63 gear. 551whp, 11.1@124mph.
Got a question about a GPI product? Feel free to shoot me a message! |
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06-05-2018, 08:54 AM | #9 |
Drives: 2012 Camaro 2SS RS Join Date: Jul 2017
Location: US
Posts: 43
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I do drag race the car been shooting for mid to low 11s which shouldnt be to hard being as i got 475 rwhp, most bolts ons besides intake TB or supercharger running on streets im usualy at 12.9s leaving at an idle and gradually getting after it basicly so i dont roll the tires off, my slicks are 26s atm and hook really well so far doing street testing can launch at 5k they make about one full turn and hook at 3k they dead hook havent had them to the track to make any passes yet so no times so far but i also want to get into doing some circuit tracks as there is a great one local and i love taking the car out for some "spirited" road trips out on the interstates so i really dont wanna loss to much driveability just to get a little lower quarter mile time im worried 4.11s would make my gears to short for the circuit track or playing out on the highway
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06-05-2018, 11:22 AM | #10 |
Drives: 2012 Camaro 2SS RS Join Date: Jul 2017
Location: US
Posts: 43
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Acammer after reading some of your posts im kinda thinking about the 4.11s now but with all the bad reputation they have ill probley end up pulling the trigger on the 3.91s
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