Competition 1 3/8" input upgrade for 6 speed?

[cjohnson]

Does anyone know what this entails. I understand it is a much bigger job and more expensive than with the 5 speed. Us early 6 speed guys got a bum deal on this. Also, where should I go to do this? How many have actually broken the 1 1/4" input shafts on the 6 speed and how did you do it - pulling, drag racing or what?



Thanks,



Craig

 

[BigBadDodge]

Craig, you have a EEP Pulling clutch shouldn't you already have the 1 3/8" input shaft ?



BBD

 

[BPonci]

If i remember right i beleave the 1 3/8 input is the same for 5 and 6 speeds.

 

[Got Smoke?]

Everything I've seen and read says its just a simple job.



4 bolts.



Some friends and I are doing mine next weekend along with my SBC dual disk. Oo.



Its the same for 5spd's and 6spd's though.



EDIT: borrowed from SBC's website

#ad

 

[Turbo Thom]

Thats all it is. Four bolts and work it out. It won't just fall out. Be sure to clean the transmission and the input housing. Put a new ring of gasket maker on the housing. Don't use to much. You don't want it inside the transmission. Not a bad job at all.



And the dual disc? I would put it on the output shaft before I installed on the engine. Be sure the splines are straight and smooth. The output shaft will tell you that.



Later



. . Preston. .

 

[NBowlin]

like everyone else is saying its very straight forward.

also in conjunction with the earlier statement about not using too much gasket maker. very true. if you use too much it will be smashed out and it tends to fill the oil hole deal. i had mine in and out off and on 6 times in the last couple months, and more than once that hole was filled. it doesnt take much at all. other than that it is really easy.



another thing to consider, which is what happened to mine, if your transmission has been torn into, rebuilt what ever you want to call it you may have trouble. the input shafts have a +/- in length, and if you have a rebuilt transmission and you receive an input that is on the longer side it will bind your transmission up. mine was bad enough that with i had to remover all the shims on the far side as well as make 3 out of tag board for the carrier bearing housing that holds the input in place. it was so tight you had to use a pipe wrench to make it turn in nuetral. after the shims it was pretty normal, but it eventually caused a lot of damage to the transmission. i was sent another input shaft that was on the short side and there was no such problems with it.



it was a pia and i thought i would share it and maybe keep someone else from having to go thru it. i have had to tear this transmission down and completely rebuild it twice now in less than a year.



oh also another thing to consider is over filling your transmission by one quart. if you fill it with the suggested gallon it doesnt hardly get to the fill hole. with it full and the top off it just looks like it needs another quart. i am not sure if this would help with heat or not, but i dont see how it could hurt. correct me if i am wrong.



good luck to ya

 

[South Bend Clutch]

Hold on a minute!!



The early six speed is different animal all together from the 4500's. The transmission has to be completely torn down to replace the shaft. I would suggest call Blumenthal's at 1-888-236-4800 and ask for Don or Monty. They can sell you the shaft kit or swap you transmissions with the shaft in place.



Didn't EEP tell you this before you purchased the clutch?



Good Luck

Peter

 

[cjohnson]

Peter, thats the answer I thought to be true. The 6 speed is totally different than the 5 speed. Ther newer 6 speeds already have the 1 3/8 shaft. Peter, I've been told its a heck of a job if you aren't familiar with the trans - do you agree? Probably easier to just exchange the trans huh? Blumenthal is the best route for this? As for my clutch and EEP. I've had the dual disc in there for a year and a half already. I knew I had the small shaft and was told it isn't fun or cheap to change when I was getting the clutch - so I had EEP build me the clutch to fit the 1 1/4 shaft - no misunderstandings there. But My power has continued to increase and now I'm getting a little nervous. Thats why I'm wondering how many have actually broken the 1 1/4 on the 6 speeds. Thanks for the replies fellas.



Craig

 

[REDDODGE]

my buddy broke his with only a tst comp box and 275's

 

[cjohnson]

my buddy broke his with only a tst comp box and 275's

Thats not what I wanted to hear. Was it a 6 speed? Was he drag racing or what?



Craig

 

[jwilliams3]

I know a guy that broke a 1 1/4" shaft with a EEP DD.

Borrowed time.

 

[Smokin Dodge]

Is that Me that your talking about Justin, mine is a five speed and I had one pull on it but I wasnt pulling when it broke I was hauling a trailer in 4th gear getting ready to accelerate and boom broke right in half. I dont think its as big of a problem on the 6spd for just driving on the street because there isnt as much of a gap between the gears, but DD clutches are hard on parts.

 

[REDDODGE]

Craig he was doing a burnout for his five yr old son and boom. my brother in law put in the big shaft in his and busted the out put off the transfer case. DD clutches are hard on parts.

 

[jwilliams3]

Jesse,

Thats you I am talking about!

 

[24VChev]

I have done the swap from a 1 1/4 shaft to a 1 3/8 shaft. Took me about 6 hours to do the job. I did not have any of the special tooling that would make the job easier. I had to make up a really deep socket to get the nut off of the mainshaft. With the transmission standing on the bell housing you start at the rear and remove the tail shaft housing and keep going to till you get the mainshaft and counter shaft out. then you can go after the input shaft. I also had to change out the bellhousing on the transmission to a later style. The inside is different and the larger input shaft will not clear the inside casting. It maybe possible to machine the housing. You will also need to get your hands on some shims to set the end play properly.



Hope that helps



PS I would not do it again.....

 

[cjohnson]

I have done the swap from a 1 1/4 shaft to a 1 3/8 shaft. Took me about 6 hours to do the job. I did not have any of the special tooling that would make the job easier. I had to make up a really deep socket to get the nut off of the mainshaft. With the transmission standing on the bell housing you start at the rear and remove the tail shaft housing and keep going to till you get the mainshaft and counter shaft out. then you can go after the input shaft. I also had to change out the bellhousing on the transmission to a later style. The inside is different and the larger input shaft will not clear the inside casting. It maybe possible to machine the housing. You will also need to get your hands on some shims to set the end play properly.



Hope that helps



PS I would not do it again.....

Thanks for the replies guys, I don't really feel like messing with it, when the time comes, maybe just swap the whole thing out and update my clutch parts to accept the 1 3/8.



Craig

 

[Tcolesanti]

Anyone else heard of these small input shafts breaking???