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

1990 New 3.73 Install

  • Thread starter Thread starter jhart
  • Start date Start date May 3, 2015
J

jhart

New Member
May 3, 2015
2
0
1
May 3, 2015
#1
  • May 3, 2015
  • #1
I had a Ford racing 3.73 installed in my 1990 notch and when I'm off the gas going around corners the rear end is howling like crazy. I have only driven it about 75 miles since the install. Do I give it more break in time or get it back to the shop?
 

Gearbanger 101

Straight Outta Locash
20+ Year Stangneter
Aug 10, 2002
9,457
1,377
234
Ontario, Canada
May 3, 2015
#2
  • May 3, 2015
  • #2
jhart said:
I had a Ford racing 3.73 installed in my 1990 notch and when I'm off the gas going around corners the rear end is howling like crazy. I have only driven it about 75 miles since the install. Do I give it more break in time or get it back to the shop?
Click to expand...
Take it back to the shop. 75-miles is plenty for break in. Could be anything from a poor install, to a worn pinion or axle bearings....which should have been changed during the install.
 
J

jhart

New Member
May 3, 2015
2
0
1
May 3, 2015
#3
  • May 3, 2015
  • #3
Thanks, the guy that done the install told me he did not like the bearings that came with the kit so he used the old ones. That kind of threw me off.
 

CarMichael Angelo

my rearend will smell so minty fresh,
15 Year Member
Nov 29, 1999
10,641
8,909
234
Birmingham, al
May 4, 2015
#4
  • May 4, 2015
  • #4
jhart said:
Thanks, the guy that done the install told me he did not like the bearings that came with the kit so he used the old ones. That kind of threw me off.
Click to expand...

You need to kind of throw the guy off a bridge.

He more than likely cheesed because he didn't want to go through an extra necessary step. It's not easy to get those bearings off, and I'd bet that was the real reason they're still there, not because he didn't "like" the new ones.
 
Reactions: f8tlfiveo and A5literMan

84Ttop

They make new pistons every day, so why worry?
5 Year Member
Jul 2, 2009
5,222
3,254
204
South Jersey
May 4, 2015
#5
  • May 4, 2015
  • #5
madmike1157 said:
You need to kind of throw the guy off a bridge.

He more than likely cheesed because he didn't want to go through an extra necessary step. It's not easy to get those bearings off, and I'd bet that was the real reason they're still there, not because he didn't "like" the new ones.
Click to expand...
I would blast this guy as Mike said, no reason those bearings should have been put it. I would seriously be questioning the rest of the setup in the rear as well...
 

CarMichael Angelo

my rearend will smell so minty fresh,
15 Year Member
Nov 29, 1999
10,641
8,909
234
Birmingham, al
May 4, 2015
#6
  • May 4, 2015
  • #6
84Ttop said:
I would blast this guy as Mike said, no reason those bearings should have been put it. I would seriously be questioning the rest of the setup in the rear as well...
Click to expand...
Yeah, It's probably too late now even if he did go back and replace the bearings that he "didn't like". Besides, if that's his work ethic, it's probably his gear setup that's making the noise, in addition to the fact that he didn't do what he should've.

(What a goob,....I don't like the way he looks either)
 

84Ttop

They make new pistons every day, so why worry?
5 Year Member
Jul 2, 2009
5,222
3,254
204
South Jersey
May 4, 2015
#7
  • May 4, 2015
  • #7
Agreed, I would be seeking new gears from him at this point. The problem is once they have a wear pattern in them that isn't correct, good luck setting them up properly now. I always set up used gears on the coast side as the wear on the drive side prevents you from getting a good pattern. Judging by the fact that he was too lazy to pull the carrier bearings, it's likely that he doesn't have a clue how to get this right...
 

02 281 GT

Agreed...My wife has great Boobs
15 Year Member
Feb 3, 2009
3,208
1,972
194
Cabot, AR
May 4, 2015
#8
  • May 4, 2015
  • #8
jhart said:
Thanks, the guy that done the install told me he did not like the bearings that came with the kit so he used the old ones. That kind of threw me off.
Click to expand...
Is this an actual shop, or are we talking shade tree mechanic here?
 
You must log in or register to reply here.

Similar threads

Z
Progress Thread zeth194 - New Guy on the Block
  • zeth194
  • Mar 19, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
10
Views
471
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 26, 2026
LILCBRA
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
341
Fox 5.0 Mustang Tech May 9, 2026
Mindseye007
F
1990 mustang GT, essentials to making a 5,000 mile round trip (Michigan to California, and back)
  • FreeMustangProject
  • May 8, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
19
Views
856
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 14, 2025
hoopty5.0
Progress Thread Progress Thread- From6to8's 1994 Cobra Supercharger install
  • from6to8
  • Sep 25, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 20 21 22
Replies
420
Views
9K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 6, 2026
from6to8
T
For Sale 1990 GT Convertible Resto-mod
  • teneck83
  • Jun 19, 2025
  • Fox Body Mustangs For Sale (1979-93)
Replies
0
Views
353
Fox Body Mustangs For Sale (1979-93) Jun 19, 2025
teneck83
T
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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?