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

Transmission woes

  • Thread starter Thread starter HiFlow5 0
  • Start date Start date Apr 28, 2005
Prev
  • 1
  • 2
First Prev 2 of 2

srothfuss

Last night I stabbed the same guy 7 times in a row
Oct 17, 2004
1,796
3
0
Woodward Ave.
Apr 30, 2005
#21
  • Apr 30, 2005
  • #21
squeeeg said:
T5's are designed to use ATF not synchromesh. Synchromesh is used for tremecs. I would recomend filling it up with synthetic ATF and seeing if that helps at all. My guess though is that you synchros are going out.
Click to expand...



A T-5 needs ATF not Gear Oil or syncromesh! Start with putting the right fluid in there first. Better yet - you better flush out all the syncro crap before you put in the ATF. Then your trans will shift like it's supposed to.
 

HiFlow5 0

Member
Oct 29, 2003
68
0
7
East Longmeadow, MA
Apr 30, 2005
#22
  • Apr 30, 2005
  • #22
srothfuss said:
A T-5 needs ATF not Gear Oil or syncromesh! Start with putting the right fluid in there first. Better yet - you better flush out all the syncro crap before you put in the ATF. Then your trans will shift like it's supposed to.
Click to expand...

I've read on other forums and I think here too that Syncromesh was supposed to be the best for T5's. If that's not the case, then I will promptly be putting in ATF. Is synthetic ATF better or worse, and how would I go about flushing out all the syncromesh completely?
 

old_blue

15 Year Member
Nov 3, 2003
1,783
282
124
May 1, 2005
#23
  • May 1, 2005
  • #23
some people use synthetic and say it is smoother and they can feel it in the shifter. I used to have synthetic and noticed it a little but I also had a leak at the rear seal of the tranny so it I didnt notice the difference for long and I didnt like losing all that expensive fluid so I replaced the seal and ust run valvoline ATF.
 
Prev
  • 1
  • 2
First Prev 2 of 2
You must log in or register to reply here.

Similar threads

S
Drivetrain Downshifting from 3rd to 2nd issue
  • Scott_S
  • Apr 23, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
24
Views
899
Fox 5.0 Mustang Tech Jun 14, 2026
Mindseye007
Drivetrain How much resistance, if any at all, is normal on a new 1st gear and synchro on a WC T5 transmission?
  • sleep-e
  • Jan 21, 2026
  • Fox 5.0 Mustang Tech
Replies
2
Views
291
Fox 5.0 Mustang Tech Jan 22, 2026
sleep-e
Drivetrain Broken clutch cable- what it looks like
  • JulianR
  • Aug 6, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
24
Views
571
Fox 5.0 Mustang Tech Aug 10, 2026
gkomo
W
Speedometer and shifting issues
  • wyatt-tetro891
  • Aug 17, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
6
Views
182
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 18, 2026
wyatt-tetro891
W
M
85 Capri 5.0 transmission rattle
  • Mamaclean
  • May 2, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
2
Views
192
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 17, 2026
Mamaclean
M
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?