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Thread: Just swapped to a 3.73
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03-14-2015, 10:56 AM #1
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- Feb 2015
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Just swapped to a 3.73
Hello everyone,
Just bought a 99 Trans am off my brother inlaw as my daily driver a few weeks ago. He had a 3.73 diff sitting around that he never got around to installing. So yesterday I got around to installing it. My question is, do I have to tune the car in anyway when swapping diff's?
Thanks for the help and glad to finally be a part of the LS community.
Tony
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03-14-2015, 11:46 AM #2
You'll need to have the speedometer calibrated so your mph isn't off. Other than that you are good to go.
Boost gets you laid, unless your name is Jon.
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03-14-2015, 12:43 PM #3
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- Feb 2015
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- Los Angeles
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- 17
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03-15-2015, 12:57 AM #4
Is your car manual or auto?
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03-15-2015, 04:35 AM #5
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- Feb 2015
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- Los Angeles
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03-15-2015, 05:11 AM #6
Nothing wrong with an A4. You'll dust a 6 speed off the line almost every time unless they happen to hit that small sweet spot between a bog and tire spin.
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03-15-2015, 06:09 AM #7
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03-15-2015, 06:50 AM #8
You'll like it. Put a stall in it and you'll LOVE it. Auto is the way to go in these cars. Never was that much of a T56 fan. Now a Jerico or old school crash box is another story
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03-15-2015, 05:46 PM #9
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03-15-2015, 05:51 PM #10
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- Feb 2015
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- Los Angeles
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Hahahha I'll look into it. I just got done installing and replacing all the bushing with polyurethane bushings from Summit racing and upgraded struts and springs. Taking it to get an alignment tomorrow. I'm hella excited to start driving it. I'm in south central LA. I may take it to my local tuner just for the hell of it. Better safe then sorry. Thank you all for the positive feedback. I need to start a build thread. Lots done already and still more to come for this bad boy
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03-15-2015, 05:56 PM #11
I'm from L.A. originally. West side and SF Valley, mostly.
I miss the awesome roads out there (which are hard to enjoy in all the traffic, though). You're pobably better off with an auto out there on I-10, LOL!
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03-15-2015, 06:01 PM #12
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- Feb 2015
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- Los Angeles
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03-15-2015, 06:10 PM #13
I used to work in Monterey Park. Had to make the drive from CSUN all the way down there a couple times a week. I made my own schedule for the most part, though. So I did whatever I could to make that drive after 10 pm. It took so long to get home that I sometimes, just for the heck of it, would go the long way: 60 --> I-10 --> PCH --> Malibu Cyn --> 101 --> 405. A much nicer drive with scenery and fresh-smelling air (and fun twisty roads to drive)
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03-15-2015, 06:16 PM #14
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03-16-2015, 08:52 AM #15
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- Feb 2007
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- San Diego, CA
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- 5,823
2002 Z28 A4 NBM- Sadly now demodded :(
<---- Native Angeleno, born and raised in Gardena.
The way I heard it put is that a manual tranmission is for impressing high school kids and an auto transmission wins races.
That said my 02 is an A4 (see sig for former mods) and my Corvette is an MN6...
08STiguy, whereabouts do you live in South Central?Last edited by 67CamaroRSSS; 03-16-2015 at 09:00 AM.
67 Camaro: K-K + 797-z (look it up), 454/Th400/4.10 12-bolt = 6mpg, PS/PDB/PW tilt, tach, gauges...
2005 Corvette LS2/M6 Magnetic Red Metallic (What else would it be?) w/ Cashmere interior
2002 Z28: NBM/Tan, MTI smooth lid, smooth bellows, !AIR, !cats, 1-3/4" QTP SS LT's, 2-1/2" TD's with X-pipe, MagnaFlows dumped at axle, custom welded SFC's, MidWest Chassis body mount adjustable T/A, 3400 stall, 3.23 gears (was 2.73). Tuned: 343rwhp/357rwt (before TD's). Best: 12.559 @ 108+, 1.73 60' @ 3500' DA w/MT ET Street DR's.
Carbon footprint? CLOWN SHOE!
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03-16-2015, 08:59 AM #16
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03-16-2015, 09:21 AM #17
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03-16-2015, 09:48 AM #18
- Join Date
- Aug 2007
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- Greensboro, NC
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- 39
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- 1,335
Pewter- 2002 Trans Am WS6 M6
Don't bother drag racing my 6 speed it's more set up as a road carver any ways. More fun driving up in the mountains on a nice sunny day for hours then just doing 1/4 mile passes imo at least.
Mods - Lid, Skip Shift Eliminator, MGW shifter, UMI SFCs, Founders Lower Control Arms, Founders Panhard Bar, Founders Adj. Torque Arm, UMI Torque arm mount, MWC Drive shaft safety loop, KONI Yellows, Strano Springs, Strano Sway bars, UMI Upper and lower A Arms, 160 thermostat, TSP headers and TSP true duals Monster stage 2 clutch, racetronix fuel pump, Strange S60 rear axle and tune by Frost.
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03-16-2015, 09:58 AM #19
T56 is a good cruiser trans, good mileage, fun at times, etc... Definately what you want on a road course, so it has it's advantages.
Most of us old schoolers aren't into the twisty stuff, if I were, I'd likely start with a different type of car anyway.
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03-16-2015, 10:32 AM #20
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- Feb 2015
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- Los Angeles
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