Ellis Juan

iTrader: (5)

5/6 gear cluster came off by hand. There is a little play when its on the main shaft. Replace mainshaft and 5/6gear cluster or is this normal and is some play ok? I dont really care if I have to replace it. I just want to know.

TDP

iTrader: (23)

It is supposed to be a tight press-fit for this gear. I offer a "fix" for you without replacing any parts. I get the mainshaft re-machined to .005" thicker than stock. This way it presses on really tight and you will never have this problem again. It is a crappy design from the factory, as the press fit is not tight enough, and this causes the splines to wear out. If you install a new mainshaft and 5-6 gear, you will most likely have the same problem down the road. Just send in your mainshaft and I can have it back to you the next day. Price is $100 + shipping.

Jason
817-300-6840

Ellis Juan

iTrader: (5)

If my mainshaft 5/6 splines are worn you can still do this? So then all I will need is a new 5/6 gear cluster correct? How is that possible? ha ha. What goes into that process?

thesource

iTrader: (60)

Look at the splines on the main shaft . If they have less than 50% of the material gone , use it with out question . If the wear is more than half , either take the chance or replace it . I usually DO NOT replace them unless the wear is more than about 70% unless its going into a vehicle that I know is super heavy or does a whole lot of highway driving . Either way , yours sounds fine .

calhoon

iTrader: (6)

The "repair "sounds fishy. You take a worn shaft and machine it larger? If you are plating the shaft and then remachining it, thats much more temporary than replacing the worn parts. I suggest a new mainshaft and a new 5/6 driven gear. The reason is that gear is held in place by the spline AND the journal press. Plating material will not be hardened like the carburized original.

Jonathan@Tick

iTrader: (5)

I agree with thesource. If the splines appear to be half worn away or more I'd suggest replacing the the shaft and gear. That gear pulls off by hand on probably half the t56's we do, but I've only seen a couple that were worn enuff to warrant a replacement.

Ellis Juan

iTrader: (5)

I really dont know if I can make the call. I would hate to put it back together only to have to pull it all out and replace everything. Ill take some pics tonight and post them up.

thesource

iTrader: (60)

Its going to be hard to tell from pics unless they are a good resolution . If you can rock the gear on the shaft , you might want to change it . If its just a little loose sliding on the shaft , it should be fine .

TDP

iTrader: (23)

It is a proven repair, nothing temporary about it. The machine shop that I use specializes in this type of stuff. They have over 30 different types of filler for various metals, including hardened steel. It is tested with a Rockwell scale, and comes to 62-65 before AND after the process. Since the press fit is tighter than factory, the 5-6 gear will not ever move, hence the worn splines will not be an issue. I also go by the 50% rule. I replace the mainshaft if it is worn beyond this point. Hope this clears thigs up for ya.

Ellis Juan

iTrader: (5)

Something needs to be done to mine. I dont like the play in the cluster and I feel like its half assing it if I dont replace or repair. That being said I have 3 options:

DDperformance: viper OPS conversion and cluster-conv.599+cluster178
Thegearbox.org: New mainshaft and cluster-400bucks
TDP: Machine and repair splines and cluster-100+178cluster

Paper rock scissors?

thesource

iTrader: (60)

How many miles are on the car ?

Ellis Juan

iTrader: (5)

Good question. I bought the trans used. Said it had 40k miles on it. But he told me all the symptoms so I knew what i was getting. Told me 5th wasnt working. Besides the 5/6 shift fork pads being gone and the 5/6 splines everything else in the trans was in great shape.

TDP

iTrader: (23)

As long as the splines arent too bad, you will not need a new 5-6 cluster. When it comes to the 5-6 cluster, I draw the line at about 30-35% wear. About how worn is yours? If you need a new one, then I can most likely beat that price of $178. I can check it Monday and let you know.

Ellis Juan

iTrader: (5)

The mainshaft splines as well as the cluster are about 40% but from what I can tell are less than 50%. Let me know monday what you want for a new cluster. I need a new one regardless. The only thing is what I want to do with the mainshaft. buy or repair. Your option is looking pretty good. I do like the fact that you machine it larger.

TDP

iTrader: (23)

I will be glad to help you out. I've been using this mainshaft repair method for 1.5yrs now and never once had any problems. PM me your number and I will be sure to call you Monday with that price. Thanks

Jason