• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

3.90 gears???

  • Thread starter Thread starter steveb24
  • Start date Start date Jan 16, 2006

steveb24

New Member
Nov 28, 2005
555
0
0
wilmington, DE
Jan 16, 2006
#1
  • Jan 16, 2006
  • #1
whats up with these 3.90's..first time ive seen them was today for sale on ebay..i guess the only company that makes them is motive..any good?
 

helty

some Ukrainian's enjoying a handjob via my credit
Mar 30, 2005
1,461
1
39
Baltimore, MD
Jan 16, 2006
#2
  • Jan 16, 2006
  • #2
yes, they're good gears. Motive makes gears for all sorts of cars and trucks. some people will say get nothing but FRPP. thats all personal preference to me. as long as the mechanic doing the gear install does it right, there should be no difference in what brand gears they are. I know theres something about FRPP gears that makes the install easier, but im not quite sure what it is.

if you cant decide between 3.73s and 4.10s, 3.90s are a good medium.
 

timeless2

Vi Veri Veni Versum Vicus Vici
Admin Dude
Nov 29, 1999
1,366
202
154
the Shadow Gallery
Jan 16, 2006
#3
  • Jan 16, 2006
  • #3
Get 5.14s...

Check out this site, too:
http://www.partshopper.com/shop/Ford-Racing-Mustang-Gearsets-m58.html

On a more serious note, I've not heard bad things about Motive. I do say I would put FRPP or Pro 5.0 in my car before choosing Motive or Richmond.
 

wannabe2000GT

New Member
Nov 9, 2004
138
1
0
upstate, ny
Jan 16, 2006
#4
  • Jan 16, 2006
  • #4
damn 5.14s seem a tad steep good low end power though
 

sgarlic

Founding Member
Apr 21, 2001
3,085
1
56
Jan 16, 2006
#5
  • Jan 16, 2006
  • #5
I've read good and bad things about Motive. Some say they are noisy, some don't. My most reputable local gear installer once commented that he refused to install them anymore, because they are manufactuered overseas instead of in the US, which (again according to him) has affected the quality.
 

TangerineGT96

New Member
Sep 24, 2005
134
0
0
arkansas
Jan 16, 2006
#6
  • Jan 16, 2006
  • #6
i want a set but i was told by one of my buddies that you make noise soo i dont know who else makes them
 

stangGT97

New Member
Dec 22, 2004
1,299
1
0
Boston area, MA
Jan 17, 2006
#7
  • Jan 17, 2006
  • #7
all gears make noise if not set up correctly
 
S

speedytang

Founding Member
Jul 28, 1999
765
1
17
Marengo,Ohio,US
Jan 17, 2006
#8
  • Jan 17, 2006
  • #8
noise is a install problem. I would stay with 3.73 and 4.10 just because I can get a speedometer gear to match . The Ford Racing gears are nice because they have the endplay markings on the gears and I can use those measurements and get the correct shims usually the first time and takes no time to install.
 

mogs01gt

Founding Member
Jul 22, 2002
3,113
30
119
Ohio
Jan 17, 2006
#9
  • Jan 17, 2006
  • #9
You cannot use gears on 99+ mustangs to correct the speedo. You have to get a speedcal or a chip. The speedometer is electronically controlled.

Im running 3.90s and I love em.
 
K

Kilgore Trout

Fried or Broiled ?
10 Year Member
Mar 30, 2005
4,749
95
134
Jan 17, 2006
#10
  • Jan 17, 2006
  • #10
The real reason FRPP gears are preferred is that they are easier to install.
 

98blackmagic

New Member
Jun 2, 2005
386
0
0
wouldnt you like to know
Jan 17, 2006
#11
  • Jan 17, 2006
  • #11
stangGT97 said:
all gears make noise if not set up correctly
Click to expand...


That is the truth.
 
You must log in or register to reply here.

Similar threads

K
Drivetrain '87 5.0 Installing New Ring Gear and Pinion - Pattern Questions
  • karhoot
  • Apr 23, 2026
  • Fox 5.0 Mustang Tech
Replies
10
Views
315
Fox 5.0 Mustang Tech May 9, 2026
Mindseye007
How Many Runs For A Built C-4
  • 93gtmustang
  • Apr 19, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
9
Views
627
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Dec 15, 2025
revhead347
Progress Thread Progress Thread- From6to8's 95 GT/Saleen Supercharged 331 install
  • from6to8
  • Mar 22, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
24
Views
729
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 6, 2026
from6to8
D
Drivetrain car still rolling while in gear and off
  • dqureshi06
  • Jan 24, 2026
  • Fox 5.0 Mustang Tech
Replies
3
Views
196
Fox 5.0 Mustang Tech Jan 24, 2026
General karthief
S
New guy- first Stang- I love it !!
  • smid333
  • Mar 22, 2026
  • The Welcome Wagon
Replies
5
Views
140
The Welcome Wagon Mar 23, 2026
smid333
S
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?