• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Dumb question about serp. belt

  • Thread starter Thread starter ComfortablyNumb
  • Start date Start date Dec 7, 2003

ComfortablyNumb

Founding Member
Apr 25, 2002
596
0
0
LB- Jersey Shore
Dec 7, 2003
#1
  • Dec 7, 2003
  • #1
I measured my belt while it was on th car, I just sort of ran the string over the pulleys and belt while it was on there. The string is 90", isnt that kind of big? I also went to the NAPA website to get a number for a pulley and I have 2 options, serp belt for auto and serp belt for Manual trans. My car was originally equipped with a manual but has since been converted to AOD, so which should I get? Sorry for the stupid question, Thanks. Its an 87 5.0 with All accessories.
-Skip
 

50Dreamer

Founding Member
Nov 14, 2000
688
17
38
CT
Dec 7, 2003
#2
  • Dec 7, 2003
  • #2
I dont really think there is any diffrence at all. I dont see how there could be.

Dave
 

TIMMY2734

Founding Member
May 17, 2002
1,330
1
36
Queens, NY
Dec 7, 2003
#3
  • Dec 7, 2003
  • #3
There is no difference between autos and manuals. You prob got mixed up with AC and no AC
 

Fairlane

Founding Member
Mar 27, 2002
136
0
0
Panama City Beach, Florida
Dec 7, 2003
#4
  • Dec 7, 2003
  • #4
It could have been with a smog pump or without a smog pump. This might help.
 

Attachments

  • Belt size.webp
    22.5 KB · Views: 214
  • belt.webp
    41.1 KB · Views: 230

rd

Founding Member
Jan 12, 2000
3,316
63
109
Ocean Springs MS
Dec 8, 2003
#5
  • Dec 8, 2003
  • #5
ComfortablyNumb said:
I measured my belt while it was on th car, I just sort of ran the string over the pulleys and belt while it was on there. The string is 90", isnt that kind of big? I also went to the NAPA website to get a number for a pulley and I have 2 options, serp belt for auto and serp belt for Manual trans. My car was originally equipped with a manual but has since been converted to AOD, so which should I get? Sorry for the stupid question, Thanks. Its an 87 5.0 with All accessories.
-Skip
Click to expand...

Stock belt length on a 79 5.0 is 93.5 inches. I think newer ones are a bit shorter because the AC pulley is smaller.

It is easy to check the catalog data for lenght at the parts store.

Sometimes the best fit varies by 1/2 in or so between cars. If you have removed accessories, all bets are off, you have to measure and experiment.
 
You must log in or register to reply here.

Similar threads

For Sale 94 Cobra 408w AOD Project For Sale
  • Labora
  • Oct 11, 2024
  • SN95 Mustangs For Sale (1994-04)
Replies
1
Views
1K
SN95 Mustangs For Sale (1994-04) Apr 7, 2025
Labora
Engine 1987 belt size
  • R82148V
  • Jul 5, 2021
  • Fox 5.0 Mustang Tech
Replies
6
Views
1K
Fox 5.0 Mustang Tech Jul 9, 2021
R82148V
Place to Avoid: Jamison Auto Group in Gulfport, MS
  • D Durden
  • Oct 20, 2025
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • 2 3
Replies
45
Views
2K
1965 - 1973 Classic Mustangs -General/Talk- Feb 4, 2026
nickyb
F
Drivetrain TKO 600 swap notes
  • Foxxxy
  • Dec 21, 2019
  • Fox 5.0 Mustang Tech
Replies
8
Views
3K
Fox 5.0 Mustang Tech Dec 26, 2019
Foxxxy
F
Engine compartment Detail tips and pointers...
  • CarMichael Angelo
  • Feb 19, 2019
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
12
Views
4K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 26, 2019
Rdub6
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 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?