Flywheel housing for 2v.

[Joseph Cummings]

32 minutes ago, Geoff Weeks said:

I had a small cam SAE #1 that had 3/8" bolt holes, but I doubt it was as old as 1953? Came off a CPL 150 small cam engine.

Yeah, I seem to remember working on sixties stuff that were 3/8

[Joseph Cummings]

On 11/24/2024 at 8:30 PM, terry said:

They made a clutch brake for a mack push clutch, it had a lever that went down and pushed a disc against the counter shaft.  Terry 

Yeah for the CL50 clutch. The clutch brake was on the countershaft. You had to adjust that clutch by taking out shims when it wore down, then adjust the linkage, and then there was an adjustment bolt for the clutch brake. I had two like that that were 1960s One had a TRL107 trans and the other a TRXXL107 the two stick with the super low first. You found them in mixers a lot, they were great for doing curb pours. Both those clutches held up really well

[Freightrain]

2 hours ago, Joseph Cummings said:

I'm new to this thread. But why are you putting yourself through all this aggravation? Why not just fix whatever is wrong with your triplex?

No aggravation.  "If" I knew I could rebuild my triplex that would be first in the list.  Easy-peasey.  Updating to something easier to drive and stronger is next on the list.  There have been plenty of guys that have put Eaton's in B models.  I just want to find the easiest bolt in.  I have never dealt with big truck transmissions and bell housing before so this is a learning curve.

I have to borrow or rent a space to do this so it can't turn into a cluster.  I want a game plan that has a good chance of completion.  I don't want to tear it apart and then go "oh chit what do I do?".  I can weld, fab, and machine so there isn't anything that really scares me.  I have touched everything on this truck except for the transmission.  All done in a single stall garage.  No room to pull a transmission though.

[Freightrain]

2 hours ago, Joseph Cummings said:

 

Thanks.  I have seen that.  My question is the depth of the bell.  That seems to be never mentioned.  Does that change for just certain set ups? 

[Freightrain]

2 hours ago, Freightrain said:

 

 

They list that 4.375 to shaft, I will confirm what mine is.

 

My dimension is about 2 3/4 ish".  So the 6064 is longer(deeper).

This will take some modifications to my linkage.  Not impossible but will be needed because my pedal pivot comes through the rear spring hanger and lines up with existing cross bar.  Moving that cross bar back a couple inches will need to be adapted.  Something that I was concerned about.  Since it moves that back, I suppose that makes room for a dual disc clutch.

[Joseph Cummings]

50 minutes ago, Freightrain said:

Thanks.  I have seen that.  My question is the depth of the bell.  That seems to be never mentioned.  Does that change for just certain set ups? 

I think the depths are the same , but I can't be positive about that. I haven't had a mack with a single plate clutch apart in like 40 years. Do you have the transmission you want to use yet? I've put roadrangers in macks that had double plate pull clutches like a spicer angle spring with the 2 inch input shaft. I know on one of them I got the parts from Tony DeSandro at Ace Auto Parts in Bensalem Pa. I know he knows what parts fit what. There is a guy Herman at US truck parts right outside of hazleton who is pretty good too, but english is his 2nd language so I do better just going to his place and talking in person. Both those guys are exporters so they deal with a lot of mack stuff

[Freightrain]

I have nothing.  This is just in planning stages.  Been for a couple years but want to get moving.  The ol triplex isn't getting any newer.  It done the job for the last 23 yrs I've driven it.  Just want to improve it.  I put the 237 in about 7 yrs ago.  

I've had a couple conversations with Kevin All but trying to not have to drive 8 hrs to get parts.

[davehummell]

Larry I have delt with Kevin and he had lots of parts and he was fair to deal with, Kevin is about three hours from me and I was up to his place I think four times for parts was worth the travel for me

[Joseph Cummings]

3 hours ago, Freightrain said:

I put the 237 in about 7 yrs ago. 

You know a 237 Maxidyne only needs 5 gears. Why not just put a TRL107 Maxitorque in it? Unless your rear is real low and you need an overdrive. 237 Maxidynes only came with either a 5 or a 6 speed from the factory