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Depends what you believe.33k mile on mine.
I lost 3rd gear Saturday at RA. Teeth must be sheered off. And 4th syncros are gone. Im going to replace the trans now. I have the MGW race shifter installed and going to install exedy twin disc (to replace stock clutch) and SS line and already have separate reservoir. Should the stock drive shaft be replaced as well ?
I don't want new trans to suffer same fate.
Final question- should i go Ben Chalmers stage 3 or just a stock rebuild?
I planned to stick with the mt92 since I have the 23 spline clutch already and have all the mods that should allow the trans to survive .
Thoughts?
Thanks!
yes when I got the car originally it was stock. And it would have high RPM lockout issues bad. So I changed the shifter to a Barton unit and that helped a little bit but wasn't great. So then I opted for the better mgw and that was a lot better. I remove the assist spring also. Then I put in the separate Reservoir. At that point that's how it's been since then. I put 10 to 15 track days on it and overall pretty good. Until two weeks ago at gingerman when I lost 4th gear synchros. I put in some fresh Amsoil into the trans and hope for the best at Road America. But shifting from 5th to 3rd must have been a bit too much and cost me the gear. Luckily the parts seem to fall down into the magnet area and I was able to continue and just run the course in 5th for Saturday. Sunday I ran it in 4th all day. I could get it into 4th at low speeds as I entered the track and just left it there. I'd top out at 120 in each of the straights and just hover at 7500 til the brake zone. I figured at least I was on track. Funny thing is I ran 2:40.0's if I ran it in 5th or in 4th! Pretty heavy momentum car I'll tell ya. Anyway, I had problems with some high speed lock out into 4th and 5th despite my changes- but it was manageable . I knew i still needed to change the clutch. That should fix the rest but wasn't sure on the driveshaft effects.Depends what you believe.
If you believe the primary issue was the Boss clutch, then a stock or stock-ish rebuild should be okay.
But if you think there are more issues inside the box, then pay for the Calimer upgrades. Or just do them for good measure.
If your clutch can be taken out before you decide, I suggest you inspect it for glazed spots. That’s what I found on a friend’s Boss clutch after he had issues and swapped it out.
Did you have any of the typical problems with the clutch pedal going soft or sticking to the floor? Lockout?
Plastic fork pads that wear pretty quick and contribute to lockout/syncro wearI doubt this will go very far. There’s nothing really wrong with the box itself. Just almost everything outside of it that makes it look bad.
Remote shifter
Soft bushings as relates above
Assist spring on the clutch pedal assembly
Boss clutch
Shared brake fluid reservoir
Arguably:
Plastic clutch line
Lack of a bleeder
As much as I’d like compensation for the Boss clutch, I doubt we’ll see a penny from this.
Syncros go quickly but are primarily caused by the clutch being inadequate. With a good clutch most of the durability issues with the MT82 would be gone.
yes when I got the car originally it was stock. And it would have high RPM lockout issues bad. So I changed the shifter to a Barton unit and that helped a little bit but wasn't great. So then I opted for the better mgw and that was a lot better. I remove the assist spring also. Then I put in the separate Reservoir. At that point that's how it's been since then. I put 10 to 15 track days on it and overall pretty good. Until two weeks ago at gingerman when I lost 4th gear synchros. I put in some fresh Amsoil into the trans and hope for the best at Road America. But shifting from 5th to 3rd must have been a bit too much and cost me the gear. Luckily the parts seem to fall down into the magnet area and I was able to continue and just run the course in 5th for Saturday. Sunday I ran it in 4th all day. I could get it into 4th at low speeds as I entered the track and just left it there. I'd top out at 120 in each of the straights and just hover at 7500 til the brake zone. I figured at least I was on track. Funny thing is I ran 2:40.0's if I ran it in 5th or in 4th! Pretty heavy momentum car I'll tell ya. Anyway, I had problems with some high speed lock out into 4th and 5th despite my changes- but it was manageable . I knew i still needed to change the clutch. That should fix the rest but wasn't sure on the driveshaft effects.
I don't know if the trans is inherently weak and the liberty gears are needed or not.
One of the biggest cost concerns when deciding between MT-82 replacement and Tremec conversion is the driveshaft & clutch, as most had already made the investment in both prior to the failure. Since those 2 items are on your list, you should seriously consider the conversion. I took the plunge along with the Exedy hyper-single and couldn’t be happier.yes when I got the car originally it was stock. And it would have high RPM lockout issues bad. So I changed the shifter to a Barton unit and that helped a little bit but wasn't great. So then I opted for the better mgw and that was a lot better. I remove the assist spring also. Then I put in the separate Reservoir. At that point that's how it's been since then. I put 10 to 15 track days on it and overall pretty good. Until two weeks ago at gingerman when I lost 4th gear synchros. I put in some fresh Amsoil into the trans and hope for the best at Road America. But shifting from 5th to 3rd must have been a bit too much and cost me the gear. Luckily the parts seem to fall down into the magnet area and I was able to continue and just run the course in 5th for Saturday. Sunday I ran it in 4th all day. I could get it into 4th at low speeds as I entered the track and just left it there. I'd top out at 120 in each of the straights and just hover at 7500 til the brake zone. I figured at least I was on track. Funny thing is I ran 2:40.0's if I ran it in 5th or in 4th! Pretty heavy momentum car I'll tell ya. Anyway, I had problems with some high speed lock out into 4th and 5th despite my changes- but it was manageable . I knew i still needed to change the clutch. That should fix the rest but wasn't sure on the driveshaft effects.
I don't know if the trans is inherently weak and the liberty gears are needed or not.
@67GTA - did you happen to do the swap yourself or did you have a shop do it? That would be a great write-up to have in the How-To forum here to have the process documented. Maybe we can get the next person who does the swap to post a write up for it.One of the biggest cost concerns when deciding between MT-82 replacement and Tremec conversion is the driveshaft & clutch, as most had already made the investment in both prior to the failure. Since those 2 items are on your list, you should seriously consider the conversion. I took the plunge along with the Exedy hyper-single and couldn’t be happier.
I completed the swap in my garage. Unfortunately once the research phase is complete and I fully commit to getting a project done, I’m horrible about taking pictures and documenting the process. I did learn a few things that weren’t easily discovered in my research, so could definitely recap with the hopes of helping someone else down the line.@67GTA - did you happen to do the swap yourself or did you have a shop do it? That would be a great write-up to have in the How-To forum here to have the process documented. Maybe we can get the next person who does the swap to post a write up for it.
Hell, even a rough recap would probably be useful to some in the form of a How-To article - whenever you get the chance of course. We can always have others add photos to it later - like a crowd-sourced tutorial. (https://trackmustangsonline.com/forums/how-to-tutorials.18/)I completed the swap in my garage. Unfortunately once the research phase is complete and I fully commit to getting a project done, I’m horrible about taking pictures and documenting the process. I did learn a few things that weren’t easily discovered in my research, so could definitely recap with the hopes of helping someone else down the line.
Do the MT-82's get hot on track, yep. Steve and others have made oil coolers for this trans. Check out his thread if you might go that way.
I run the scoop which came on the LS. IF you don't run some sort of cooling for the 82, change the fluids often.