The official 6-speed failure thread
TouringBubble
IX MR
26k miles
Approx 330hp (no recent dyno)
Daily Driver with over 40 drag launches, most in the low 12 second range, and 35+ auto-x runs at 60 seconds or so each. Also a few trips to the mountains using 2nd and 3rd gear a bit.
Currently on stock clutch and AMSOIL fluids all around
NO ISSUES TO REPORT.
IX MR
26k miles
Approx 330hp (no recent dyno)
Daily Driver with over 40 drag launches, most in the low 12 second range, and 35+ auto-x runs at 60 seconds or so each. Also a few trips to the mountains using 2nd and 3rd gear a bit.
Currently on stock clutch and AMSOIL fluids all around
NO ISSUES TO REPORT.
pog0
IX MR
70K on stock clutch, 2k on ACT Xtreme with RRE no name flywheel.
~340 HP/TQ
Daily driver. Launched over 100 times, 2 track days, several spirited canyon runs.
Change driveline fluids every 15k with OEM.
Blackstone labs says transmission has normal wear from oil analysis.
IX MR
70K on stock clutch, 2k on ACT Xtreme with RRE no name flywheel.
~340 HP/TQ
Daily driver. Launched over 100 times, 2 track days, several spirited canyon runs.
Change driveline fluids every 15k with OEM.
Blackstone labs says transmission has normal wear from oil analysis.
- spdrcr456 - 125,000miles - 330whp/334wtq (dynojet) -over a dozen days at the dragstrip, autox, tons of crazy spirited canyon type runs. daily driver with daily clutchless shifting (floating). lightened flywheel heavy clutch.
For the record, TTP and Warrtalon had their 6 speeds go "kablooie."
Right now I put down 333whp on an MD (370-380ish on a DynoJet). I have 99,750 miles on my 6 speed. I credit the Castrol SynTorq LT
Right now I put down 333whp on an MD (370-380ish on a DynoJet). I have 99,750 miles on my 6 speed. I credit the Castrol SynTorq LT
List of 6-speed failures:
mcjonnyp
IX MR
43,000 miles
370 whp
Issue: Third and fourth gear grinds at idle car will get stuck in third and 4th wont go in
Cause/circumstances: Failure probably due to hotlapping. Car also did many drag passes with no-lift shifting and no cool-down time.
razorlab
VIII MR
32,000 miles
340 whp / 320 wtq (Mustang dyno)
Issue: 4th gear shredded teeth
Cause/circumstances: Track use (TRE said heat killed it)
WickedWhtMR
VIII MR
30,000 miles (Rebuilt), 55,000 miles
330 whp / 300 wtq
Issue: Grinds in 3rd and 4th. Bad synros...
Cause/circumstances: Rebuilt because of previous owner abuse. Will be replaced by 5-speed because of overly aggressive clutch + aggressive driving + no lift shifting + drag launching.
mcjonnyp
IX MR
43,000 miles
370 whp
Issue: Third and fourth gear grinds at idle car will get stuck in third and 4th wont go in
Cause/circumstances: Failure probably due to hotlapping. Car also did many drag passes with no-lift shifting and no cool-down time.
razorlab
VIII MR
32,000 miles
340 whp / 320 wtq (Mustang dyno)
Issue: 4th gear shredded teeth
Cause/circumstances: Track use (TRE said heat killed it)
WickedWhtMR
VIII MR
30,000 miles (Rebuilt), 55,000 miles
330 whp / 300 wtq
Issue: Grinds in 3rd and 4th. Bad synros...
Cause/circumstances: Rebuilt because of previous owner abuse. Will be replaced by 5-speed because of overly aggressive clutch + aggressive driving + no lift shifting + drag launching.
Evolved MR
IX MR
10,600 mi
330 HP (Dynojet)
Only drive for fun and at the track. Comparatively a lot of track time for the mileage.
No problems to report. I credit it to frequent fluid changes, & lots of cool down laps.
Planning on upgrading oil cooling and adding trans cooler.
IX MR
10,600 mi
330 HP (Dynojet)
Only drive for fun and at the track. Comparatively a lot of track time for the mileage.
No problems to report. I credit it to frequent fluid changes, & lots of cool down laps.
Planning on upgrading oil cooling and adding trans cooler.
Evolved Member
iTrader: (1)
Joined: Jun 2006
Posts: 1,623
Likes: 1
From: at the 5-10 no limit tables
IX MR 48k, changed fluids at 15k and 30k, from ACT to exedy, adjusted clutch, wont go into any gear at a dead stop, hard to get into first, but smooth when rolling
Evolved Member
iTrader: (1)
Joined: Jun 2006
Posts: 1,623
Likes: 1
From: at the 5-10 no limit tables
IX MR 48k, changed fluids at 15k and 30k, from ACT to exedy, adjusted clutch, wont go into any gear at a dead stop, hard to get into first, but smooth when rolling
Newbie
Joined: Jan 2007
Posts: 10
Likes: 0
From: Winston-Salem
Kuslowski
IX MR
30k miles
~320whp
many auto-x's
No problems to report either. Occasionally get a notchy 2nd gear when its really cold out but no big deal. OEM fluid change at 19k miles and 30k miles.
IX MR
30k miles
~320whp
many auto-x's
No problems to report either. Occasionally get a notchy 2nd gear when its really cold out but no big deal. OEM fluid change at 19k miles and 30k miles.
