Hey guys I have a quick question to ask.

I'm rebuilding a c6 out my 1982 f250 351w and the input shaft looks to be gouged near the middle of the shaft.

I looked at pictures of c6 input shafts and there appears to be a machined portion of the shaft near the middle but, my machined area looks gouged into?

I can post pictures tomorrow morning if anyone wants to see.

Thankd

 

Pictures say more than words.

 

LOL! Yes picture's say alot! Just have a peek at Chris's Avi

 

Haha ya, I'll get the picture up tomorrow.

 

All of them I have seen look rougher than a cob right there. Apparently there isnt a reason to polish or machine smooth that area. I have had 4 apart in the last 6 mos.

 

Here's the pictures

 

Thats par for the course. They all look like that.

 

An overall pic and then the closeup would have been better, but I think that area has nothing riding on it. No worries.

 

Goofy are you going to beef the tranny up or just do a stock rebuild?

 

I was just doing a stock rebuild, it's my first rebuild.

I bought the truck for $350 with the burnt up tranny so I figured why not try a rebuild myself.

 

The C6 is an excellent starter tranny for rebuilding. You need to decide if you want to do a shift or reprogramming kit. Also you can go with a kevlar intermediate band for better grip against the drum. Also you can use better friction clutches like red alto or the smooth friction clutches from an E4OD. Another thing a lot of guys do is to use cut pressure plates. This will allow you to get an extra friction disc and steel in the drums. This will add strength and as well as give the tranny a longer life span.

Dont forget to get a tranny cooler if you dont have one. I used a condensor for an AC out of a bullnose truck for mine.

 

I didn't think about a shift kit, but If I get it put back together right and it works, I can always just take off the oil pan and install one right?

The kit I bought came with Red Alto clutches, but I don't know if it's a kevlar lined Band.

The truck has a transmission cooler, but It needs new lines. When the previous owner had the truck (16 year old kid) it was leaking out of the line from somewhere, so he thought he could make it home a couple miles on low fluid and leaking.

Here is an overall picture someone wanted.

 

Yes you can add a shift kit with the tranny in the truck.

 

I don't know if this is the reason for the non-machined portion but in the industry I'm in, we use a lot of gear driven pumps and compressors on our turbo machinery. All of our shafts have an area like this that is actually machined this way to create a fusable link.

This allows the shaft to shear in a predetermined location rather then the driven equipment or the driving gear to tear it self up in an over torque condition.

Boom....shaft shears in a nice smooth manner with no additional damage to the other components.
I can see how it would be good for this too. Creates a weak link rather then destroying your transmission or engine

I did look this part up and a new one has this machined area as well...so it don't look to be from wear or tear.

 

I was wondering if that was the case or if was machined rough to hold oil or sling it.