tylert14

iTrader: (11)

There's a pic of both sides. This is my first trany rebuild so I was wondering what you guys thought. There a little rounded but I never had any problems with 1st or second gear. I'm rebuilding the trany because of 3rd and 4th...

thesource

iTrader: (60)

I would use with some cleaning up to the points with a small angle grinder and a 120 grit pad . The important parts to look at are jut below the points where the angle changes and gets narrow . That is the area that gets "tappered" and lets the gear pop out after you put it into gear . Now thats not saying the points are not important . If they are all flat or almost worn down , then replace the part .

tylert14

iTrader: (11)

Can I get just that part or do I have to buy the whole synchronizer assembly. I bought a whole 3-4 syncrho assembly and it ran me over $100.

thesource

iTrader: (60)

Unfortunately , Tremec does not sell it seperately and none of the after market suppliers have started making anything for it that I know of .

bowtieman81

iTrader: (35)

I have rebuilt my trans 3 times, and I would not use it. From the pics it appears the engagement teeth are pretty rounded. It will cause hard/notchy shifting. A new syncrho is ~100 from six speeds inc. Worth it in my opinion.

Ping King

iTrader: (20)

theyre so cheap...just put another one on..Why get it all together and realize that its gonna grind going into gear?

thesource

iTrader: (60)

Because it won't grind if its not cleaned up . The damage is from the syncro not slowing the gear down in time . With a good syncro and cleaning up the burs , it will work just as new but hey , you guys do what you want its your cash .

lmt0705

iTrader: (7)

dont mess around if you have it all apart right now, dont skimp out. call Amber at 6speed inc. and get a new slider assembly.

ls1 joe

iTrader: (37)

We would never clean up synchro teeth on the slider. That is a bad idea and should only be done under extreme cases. The slider should be replaced when the teeth are worn down as it will just cause the synchro teeth on the gear to wear down faster.

Amber

thesource

iTrader: (60)

Before:


After:



This is a 1/2 slider from a T56 before and after cleaning it up with a basic angle grinder and a 120 grit pad .The part circled is more important than the actual tip . Its where the sleeve actually hold on to the gear and keeps it in gear . If this is tappered , you need to replace it .

ls1 joe

iTrader: (37)

The amount of labor it takes to do that costs as much as buying a new one. I know that we would never send a T56 out the door with a syncro being tuned up. I know that Liberty Gears, Rockland Standard, and G-force transmissions would never do such either. The fact of the matter is that you can never get it machined correctly with a die grinder, reguardless of how steady your hand is.

Joe

thesource

iTrader: (60)

I guess that depends on who you are . I have been doing this for 12 yrs and with all types of manual transmissions without a single issue concerning a syncro assembly . As for labor invested , the sleeve above took me all of about 8 minutes to shape , debur , polish and buff on a bench grinder with a wire brush .

With reguards to the question at the top , would I use it ? In a heart beat . You said the issue was with 3/4 when you tore it down . 1/2 worked fine right ? So why shouldn't it work fine when you put it back in ? And why wouldn't it work just as fine if you cleaned it up like the one in the picture I've posted ?

The answer is , it will .

ls1 joe

iTrader: (37)

Well we wouldn't do it and I am sure our customers wouldn't want that. With over 1100 under our belt I will not offer that no matter how how steady our hand is. I would not want that in my race car or street car and that is all I was stating. It is just not a good idea for the average guy. I would never use a tuned up sleeve in anything we own.

Amber

thesource

iTrader: (60)

To each their own .........

ls1 joe

iTrader: (37)

Yes each company does things different and per there preference. He wanted opinions so I gave ours.

Amber

2KnbmTA

iTrader: (3)

i think what it boils down to is that you already have the tranny out, so why leave the old part in? while it will drive fine, it probably wont last as long as a new one (duh lol). but idk I hate dropping my tranny, maybe im the only one.

thesource

iTrader: (60)

The thing is with any used transmission , all the items are worn . You have to be able to determine whats reusuable and whats not . If you change every single part in the unit , you might as well buy a brand new transmission .

When you have an engine rebuilt , do they change every single part ? Of course not . They rehone or bore out the cylinders depending on the wear of the cylinder wall , put new rings if not bored out and if it is new pistons . The cranks are turned and new bearings installed . The heads are freshened up with a valve job and resurfaced . This is the difference between a rebuilt engine and a brand new engine .

Transmissions , whether you are talking auto or manual are the same way . A good builder can determine whats usuable and whats not . That person can also explain in detail why it is or why it is not reusuable . A parts changer looks at the part , see wear or something that "looks" ugly and changes it without even thinking about it . These type of mechanics typically learn this from working at a dealership and reading service bulletins . Anyone can fix something if they throw enough money and parts at it .

tylert14

iTrader: (11)

Well I appreciate everyones opinions, it's always good to see everyones point of view. But I did go ahead and reinstall the part. I'm broke and I still need some new 4.10s, and a new clutch, and I need my car to be back together by the weekend so $100 is a lot for a new slider in my book.

I never have had a problem with notchy shifting or popping out of 1st or 2nd. If it does start to act up in the long run I'll pull it back out and tear it down. Hell, I'm so used to stuff breaking it dosen't even bother me. Dropping the trany takes me an hour effn off. It's been in and out more times than I can count hah.

And for a first time tearing into one, it really isn't bad. Just need lots of bench space and a service manual, and LS1tech ofcourse. It really hasn't been as time intensive as I thought either, and it can only get easier for the 2nd rebuild.