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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

3.73 Gears. Too much?

  • Thread starter Thread starter JustaMustangguy
  • Start date Start date Feb 25, 2010
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tannerc91gt

This last 25% is foreign territory at this point
Founding Member
Nov 29, 1999
4,392
2,967
234
Indiana
Mar 3, 2010
#61
  • Mar 3, 2010
  • #61
I always heard "stay away from 4.10s it's too much gear!"
so naturally I bought 4.10s
hoping to have the rear done with 31 spines and mosers finished up by august. There's no such thing as too much gear
 

fiveohwblow

Official Member
15 Year Member
Jul 21, 2005
2,169
145
155
Mar 3, 2010
#62
  • Mar 3, 2010
  • #62
srtthis said:
275/60 mickeys

have QA1's with 14-175s up front doing a full UPR rear with strange shocks... havent made my mind up on springs yet. need to make a pass with the bottle to see what kinda MPH i'll be making and where im at before i make the leap for 4.30's. even though i can build the rear id rather not have to keep swapping gears till i get it right
Click to expand...

Mickeys + my combo=broken parts. Many of them. I need to upgrade before I can run slicks
 

90lxcoupe

20+ Year Stangneter
Oct 7, 2003
3,596
350
134
Mar 3, 2010
#63
  • Mar 3, 2010
  • #63
Im putting 4.30s in my car as we speak with 9" ends going on the rear, and all this gear talk is relative, guys on the motor or spray are gonna want more gear as long as thier motor can support the target rpms, i know what MPH i trap at and with the new setup i should be around 6400 through the traps, it dosent bother me that i will be cruising 300 rpms higher at 65mph and 500 rpms higher at 80mph, its really not that much, overdrive is a wonderful thing, now if i had a turbo car, i probly wouldnt run more than a 3.55 gear from what ive been reading recently.

Its hard to sell anything more than a 3.73 or 4.10 gear to the bolt on five oh crowd, because its been in magazines forever that 3.73 is the way to go with a 5-speed, while thats a great combo(ran it for 5 years up till now), its not black and white, different people want different things and even a bone stock 5.0 could work very well with 4.30 gears and a good set of tires
 

67coupe

Founding Member
Apr 5, 2002
658
402
93
Huntsville, AL
Mar 3, 2010
#64
  • Mar 3, 2010
  • #64
IMO, 3.73's are perfect for DD/around town duty. Every time I'm at the track, I always want more gear....lol.
 

Mr. Rustypwnz

Advanced Member
Jun 1, 2005
1,761
63
69
indianapolis/ valdosta ga
Mar 3, 2010
#65
  • Mar 3, 2010
  • #65
1990Coupe said:
Your 98 is a mod engine though. Its a different animal when it comes to gears then the 5.0
Click to expand...

the 5.0 picked up just as much pep with the 4.10's, and prolly would have been better with the 4.30's... I liked to launch the thing.. lol
 

Mr. Rustypwnz

Advanced Member
Jun 1, 2005
1,761
63
69
indianapolis/ valdosta ga
Mar 3, 2010
#66
  • Mar 3, 2010
  • #66
90lxcoupe said:
Im putting 4.30s in my car as we speak with 9" ends going on the rear, and all this gear talk is relative, guys on the motor or spray are gonna want more gear as long as thier motor can support the target rpms, i know what MPH i trap at and with the new setup i should be around 6400 through the traps, it dosent bother me that i will be cruising 300 rpms higher at 65mph and 500 rpms higher at 80mph, its really not that much, overdrive is a wonderful thing, now if i had a turbo car, i probly wouldnt run more than a 3.55 gear from what ive been reading recently.

Its hard to sell anything more than a 3.73 or 4.10 gear to the bolt on five oh crowd, because its been in magazines forever that 3.73 is the way to go with a 5-speed, while thats a great combo(ran it for 5 years up till now), its not black and white, different people want different things and even a bone stock 5.0 could work very well with 4.30 gears and a good set of tires
Click to expand...

yes SCREW the 3.73 gear, go higher... If the car runs well, the mpg should be good..
 

srtthis

the guy doing it does every local racers rear end
15 Year Member
Jul 3, 2009
5,129
1,666
204
Maryland
Mar 4, 2010
#67
  • Mar 4, 2010
  • #67
Mr. Rustypwnz said:
yes SCREW the 3.73 gear, go higher... If the car runs well, the mpg should be good..
Click to expand...

if people are worried about MPG they are driving the wrong type of car... i have a 2000 S70 for that. i learned early on that you need to have 2 cars if you going to be doing stuff with one of them.
 

85_SS_302_Coupe

it sucks (I know) to be on the receiving end
15 Year Member
Nov 11, 2003
6,945
1,598
223
Northern KY
Mar 4, 2010
#68
  • Mar 4, 2010
  • #68
90lxcoupe said:
Its not as bad as you would think, in 5th, its only 300 rpms at 65mph.

Check out the attached file
Click to expand...

My buddy has a T56...i think it came from a Camaro. I'm not sure, but the ratios in it are such that his 6th gear is just barely longer than 5th in my 3550 and if you look at the ratios it looks more like they slipped an extra gear between 4th and 5th to make 6 gears when you would expect them to just take a typical 5 speed ratio and add a 6th gear.
 

1987LXragtop

Member
Jan 26, 2008
837
3
18
Just outside Philly PA
Mar 5, 2010
#69
  • Mar 5, 2010
  • #69
just as an aside...what are the gears in 87 up 4 banger foxes?
 

Tanus

New Member
Dec 11, 2009
847
1
0
A to the Z
Mar 5, 2010
#70
  • Mar 5, 2010
  • #70
I think most 4 cylinders come with 3.27 or 3.55 gears, but its in the 7.5 housing thats pretty much useless.
 
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