• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

Rear Seal on a 4 Speed Top Loader

  • Thread starter Thread starter Pbum5
  • Start date Start date Apr 21, 2005

Pbum5

Member
Oct 27, 2004
515
0
17
Minneapolis, MN
Apr 21, 2005
#1
  • Apr 21, 2005
  • #1
Have a little leak at the back of my Tranny.

Just wondering if the rear seal on a Top Loader can be replaced without having to take the tranny apart? Can it be replaced while in the car?

What oil should be run in a Top Loader, same as the rear Diff?

Thanks.
 
D

D.Hearne

New Member
Sep 29, 2000
11,730
6
0
south louisiana
Apr 22, 2005
#2
  • Apr 22, 2005
  • #2
Yea, you can change the rear seal on a Toploader without dissassembly. If it's a small block Toloader, the seal is the same one used in the C-4's. Just pull the driveshaft and then the seal. Toploaders use gear oil. Something like 85W-90 or 140. Fill thru the plug on the right side and till it just starts to run out the hole.
 

Pbum5

Member
Oct 27, 2004
515
0
17
Minneapolis, MN
Apr 22, 2005
#3
  • Apr 22, 2005
  • #3
D.Hearne said:
Yea, you can change the rear seal on a Toploader without dissassembly. If it's a small block Toloader, the seal is the same one used in the C-4's. Just pull the driveshaft and then the seal. Toploaders use gear oil. Something like 85W-90 or 140. Fill thru the plug on the right side and till it just starts to run out the hole.
Click to expand...

thanks. that's what I needed to know.
 
You must log in or register to reply here.

Similar threads

P
67 Mustang, with the 302 want to convert auto back to the original manual
  • Pdunn
  • May 3, 2026
  • Classic Mustang Specific Tech
Replies
2
Views
205
Classic Mustang Specific Tech May 7, 2026
Mcmahst
A
Engine 302 oil leak when running
  • AlexM556
  • Sep 8, 2026
  • Classic Mustang Specific Tech
Replies
18
Views
654
Classic Mustang Specific Tech Oct 4, 2026
manicmechanic007
W
2016 Mustang GT fuel tank leak
  • Waynetk16
  • Oct 8, 2026
  • 2015 - 2023 (S550) Mustang -General/Talk
Replies
1
Views
56
2015 - 2023 (S550) Mustang -General/Talk Oct 9, 2026
gkomo
N
Edelbrock 1405 Setup
  • nathantaylor200
  • Nov 4, 2025
  • Classic Mustang Specific Tech
Replies
3
Views
309
Classic Mustang Specific Tech Nov 5, 2025
nathantaylor200
N
O
Progress Thread LTD-ing
  • OX1
  • Mar 15, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
8
Views
461
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 6, 2026
OX1
O
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific 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?