373 gears VS stock

[91notchgt]

Well the heading says it all i guess......oh yea lets say its for a 5-speed......how much of a difference do the 373's make quater mile and over all differance in feeling(launching through gears) ......thankyou to anyone who can give there input

 

[PhLoBuS]

Hmm definetly a big difference but you have to get some good traction my aod really kicks now

 

[91notchgt]

thanks.....anyone with input for a 5-speed???

 

[houstonstangguy]

should pick up a 1/2 second with just those gears.

 

[91notchgt]

thanks

 

[ninety15.0]

Best addition to my car yet....all around better. except for the highway, rpm's are a little high when cruisin at 80

 

[houstonstangguy]

welcome........good luck

 

[Michael Yount]

Don't forget the speedo gear to recalibrate your speedometer after you do the gears.

How much highway driving do you do?

 

[90mustangGT]

What I noticed about when I went form 2.73 to 3.73 is that 5th pulled like 4th, 4th pulled like 3rd, 3rd pulled like 2nd, 2nd pulled like 1st, and 1st was a whole new animal.

Highway cruising it is a good gear, makes 5th gear more responsive.

 

[SAYNOTORICE]

90 mustang put it the best.....the feeling is awesome, definitely the most fun mod i have ever done

 

[nito88stang]

It absolutely rules on AOD's. Especially highway driving. You dont have to downshift out of OD to pass anymore, you can just ease into the gas in OD and pass easily.

 

[Michael Yount]

If you look at the actual tranmission ratios, going from 2.73 to 3.73 in the rear end is almost exactly like downshifting the t-5 from 5th to 4th, or pulling the aod from 4th into 3rd. That'll give you an idea of what your highway revs are gonna be.

 

[91notchgt]

thanks for all your help guys

 

[dvs bullet]

I did 2.73 to 3.55 and I couldn't believe the difference, i want 3.73 now!

 

[PNY PWR]

What I noticed about when I went form 2.73 to 3.73 is that 5th pulled like 4th, 4th pulled like 3rd, 3rd pulled like 2nd, 2nd pulled like 1st, and 1st was a whole new animal.

Highway cruising it is a good gear, makes 5th gear more responsive.

Couldn't put it any better. Just drove mine for the 1st time tonight with the 3.73's. She pulls good, had 2.73's before. I'm feeling like I want even lower gears but I think with more motor coming in the future it will be ok.

 

[85_SS_302_Coupe]

I've actually never owned a car with 3.73s, but i've got 4.10s, and i can rip the tires loose at will....this may not do much for drag racing without slicks or drag radials, but it ups the cool factor a whole bunch.

 

[Black1987Stang]

In my 87 gt i got 373's, it also has the 2.95 conversion kit in the tranny, anybody know what this is for? I know it's a different 1st gear ratio but i dont know what it's for. also in 5th going like 65 ill be at like 1500-2000rpm. isnt this kind of low? Do i have a different 5th gear also? THANKS

 

[mustangt93]

i picked up 4 tenths with my 373s

 

[PlayboyRacer]

Im gonna drop in my 373's (among other mods) after afew stock passes at the track. Has anyone installed there own gears?

 

[Michael Yount]

playboy - have you done it before? Each set up is different - some folks get lucky and simply put things back together with the factory shims and 'luck' into the proper gear mesh. Done/measured properly, there are a number of special tools/measurements needed (pinion depth, backlash, preload on the pinion bearings). It's a job that's best left to a pro, or to be tackled with you by someone who has the tools and knows what they're doing. I wouldn't try it the first time by myself.