3.73 Gears = Traction Problem???

BowTie Eater 5 Liter · 01-23-2002, 12:22 AM

Well, Im hoping I get a phonecall in the next hour about a rearend with some 3.73's, and was wondering, will I be spinning into 2nd?

I can launch with minimal spin right now with the 3.08's, and can roast em with a powershift to 2nd

, so I wonder if they will actually help me on my street tire?

Thanks

Coupe5oh · 01-23-2002, 01:15 AM

Im sure you wont be dissapointed, however you will need more tire, if you plan on racing other opponents.

cyberstang5.0 · 01-23-2002, 09:04 AM

When I had my 3.73's installed it was one of the best upgrades I have done. You will launch faster and with more torque. If you don't know if you have crappy tires, you will soon find out! I My tires were almost brand new and all I do is spin now. My tires SUCK anyways!

Stang Runner · 01-23-2002, 11:04 AM

Well I have 3.55 so I would not have to much wheel spin with street tires!!! LOL lOL ALL i do it Brun the tires fishtail my way to 70MPH and stop spining at about 75MPH that is Way in to 3nd gear SO far before the heads My car Was faster by about 2-3sec in the 1/4 idle and about 1/2 the tires are cooking all ready. But I see you dont have as much power so it might be better I am getting MT ET streets Hope that fixes it!!!

StreetStang37 · 01-23-2002, 04:45 PM

well, even with a stock motor (+ bolt ons) I cant get traction in first at all. Off the line I burn the tires going off Idle then punching it and even when I do get a good start the tires let loose at about 4600-4700 rpm. This happens with the drag radials at normal pressure (38#), with the tire pressure down (18#) and even (last night) with a 4 second burn out with the pressure at 18#, same results. And yes the tires still have life in them.
I had a launch where I bogged, then spun got, traction and then spun again at 4600+.

Maybe I need to be easier on the trottle.

Milktasd · 01-23-2002, 05:35 PM

I have 3.73 in my 1996 Cobra and with my old tires(dry rotted) I would fishtail granny shifting into second. But with my new Negotiatior tires, 245/45/17, I only bark them into second while speed shifting and the same into third. I haven't done a burnout(accidentally) while racing.

BowTie Eater 5 Liter · 01-24-2002, 02:08 AM

well, unfortunatley, the rear end will not fit, so i will not be getting the gears, but supposedly ford did not offer an 8.8 in the 79 ltd. do any of you guys know how wide the stock rear end on my car would be?

thanks

p.s. i talked to the guy, and he said it is freshly rebuilt, all reciepts, 31spline axels, new posi diff, new gears..... only $350, but its a shame it wont fit in my car

01-23-2002, 12:22 AM	#1
BowTie Eater 5 Liter Registered Member Join Date: Nov 2000 Location: Maple Ridge B.C. Canada, The Best Place In The World Posts: 871	3.73 Gears = Traction Problem??? Well, Im hoping I get a phonecall in the next hour about a rearend with some 3.73's, and was wondering, will I be spinning into 2nd? I can launch with minimal spin right now with the 3.08's, and can roast em with a powershift to 2nd, so I wonder if they will actually help me on my street tire? Thanks __________________ 1984 Bronco II, 36" Michelin Military Tires, 95 EFI 5.0, NP435 Tranny, NP208 Doubler, NP205 Transfer Case, Fill Size Solid Dana 44 Front End, WH Progressive Rate Rock Crawling Coils, Bronco 8.8 Rear, Skyjacker Softride Leafs, 5.13 Gears, Detroit Locker. Final Crawl Ratio Of 175:1 88 GT Best 60ft. 2.181 Best ET 14.350 Best MPH 98.01 ~WRECKED!!!!~

01-23-2002, 01:15 AM	#2
Coupe5oh Registered Member Join Date: Nov 2001 Location: SanAntonio, Tx Posts: 734	Im sure you wont be dissapointed, however you will need more tire, if you plan on racing other opponents. __________________ Police package 5spd 90 Lx, Stock original motor, 3.27grs, BM fan, fms 10.5 clutch, D&D quadrant, and adjuster, ADS chip, 180 stat, mac cai, mac h-pipe, mac subframe connectors, ASP crank pulley, ripper shifter, 26x10.5 M/T sport pros welds. 246 hp according to analyzer Race weight: 3,120 E.t-13.57 with 26x10.50's e.t. streets. 1.88 60' mph- 99.92 mph

01-23-2002, 11:04 AM	#4
Stang Runner Registered Member Join Date: Jun 1999 Location: Walker, MI, USA Posts: 1,202	Well I have 3.55 so I would not have to much wheel spin with street tires!!! LOL lOL ALL i do it Brun the tires fishtail my way to 70MPH and stop spining at about 75MPH that is Way in to 3nd gear SO far before the heads My car Was faster by about 2-3sec in the 1/4 idle and about 1/2 the tires are cooking all ready. But I see you dont have as much power so it might be better I am getting MT ET streets Hope that fixes it!!! __________________ Engine: steel mounts, Under drive pulleys, K&N, GT-40 Intake ported Lower, No power steering, No A/C, Mac cold intake, 65MM TB, 255 Fuel pump, 24's, AFR 165 58cc, Rocker Arms 1.7with the stock Cam, 1 5/8 short headers, offRoad X-pipe Drive Train: 3.55, T-5 with a Pro 5.0 shifter 12.656@107.71MPH See It at www.T-racing.com/mustang.htm

01-23-2002, 04:45 PM	#5
StreetStang37 Registered Member Join Date: Dec 2000 Location: San Jose, California USA Posts: 275	well, even with a stock motor (+ bolt ons) I cant get traction in first at all. Off the line I burn the tires going off Idle then punching it and even when I do get a good start the tires let loose at about 4600-4700 rpm. This happens with the drag radials at normal pressure (38#), with the tire pressure down (18#) and even (last night) with a 4 second burn out with the pressure at 18#, same results. And yes the tires still have life in them. I had a launch where I bogged, then spun got, traction and then spun again at 4600+. Maybe I need to be easier on the trottle. __________________ 1993 Grabber Blue Mustang GT Trick Flow Heads, Street Heat intake, 3/8in spacer, E303, TFS 1.7rr & 6.75 pushrods, Holley 190lph fuel pump, 24# injectors & sample tube, SVO timing chain, Aeromotive AFPR, 180* t-stat, 2 5/8 Auto Meter mech fuel pressure gauge, K&N, March Ram Air & Pullies, 73mm C&L MAF, Edelbrock 65mm TB & EGR, 1 5/8in Equal Length Super Competition Hooker Headers, 2 1/2in H-Pipe w/hi-flow cats & Flowmaster 2 1/2in Cat-Back Exhaust, FlowTech Cut-Outs, Nitto DR's, 3.73 gears, FMS Aluminum DriveShaft, Pro 5.0 Shifter, Pro-Shift Lite, 8.5mm MSD Super Cunductor Plug Wires, PowerSlot rotors, PowerMaster 140amp Alt., LX lights, Cobra R hood w/SVO scoop, Saleen spoiler, Cobra Bumper, 3in chrome tips.

01-23-2002, 05:35 PM	#6
Milktasd Registered Member Join Date: Sep 2001 Location: Brandon, Mississippi Posts: 74	Jesus I have 3.73 in my 1996 Cobra and with my old tires(dry rotted) I would fishtail granny shifting into second. But with my new Negotiatior tires, 245/45/17, I only bark them into second while speed shifting and the same into third. I haven't done a burnout(accidentally) while racing.

01-23-2002, 09:04 AM	#3
cyberstang5.0 347ci of HORSE POWER!!! Join Date: Jul 2001 Location: Houston, TX Posts: 1,416	When I had my 3.73's installed it was one of the best upgrades I have done. You will launch faster and with more torque. If you don't know if you have crappy tires, you will soon find out! I My tires were almost brand new and all I do is spin now. My tires SUCK anyways!

01-24-2002, 02:08 AM	#7
BowTie Eater 5 Liter Registered Member Join Date: Nov 2000 Location: Maple Ridge B.C. Canada, The Best Place In The World Posts: 871	well, unfortunatley, the rear end will not fit, so i will not be getting the gears, but supposedly ford did not offer an 8.8 in the 79 ltd. do any of you guys know how wide the stock rear end on my car would be? thanks p.s. i talked to the guy, and he said it is freshly rebuilt, all reciepts, 31spline axels, new posi diff, new gears..... only $350, but its a shame it wont fit in my car __________________ 1984 Bronco II, 36" Michelin Military Tires, 95 EFI 5.0, NP435 Tranny, NP208 Doubler, NP205 Transfer Case, Fill Size Solid Dana 44 Front End, WH Progressive Rate Rock Crawling Coils, Bronco 8.8 Rear, Skyjacker Softride Leafs, 5.13 Gears, Detroit Locker. Final Crawl Ratio Of 175:1 88 GT Best 60ft. 2.181 Best ET 14.350 Best MPH 98.01 ~WRECKED!!!!~

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