DC Transmission

[DGKCCase]

I would like to lower the first gear ratio in my CC Case.Can I change the gear set form a DC into a CC housing.Will it fit,any mods?Thanks David

 

[mEl]

I don't see why you could not swap the complete 4 speed trans setup into a CC easily, you would need the input shaft, pulley shaft and sliding gear shaft from a early DC, later ones used at least a different bearing setup on the left hand pulley shaft bearing and it would be obvious to anyone who knows the tractors if that matters. I am going to guess that a 39 -40 maybe a couple years after that would drop right in. Just shim er up and go, you would have 4th gear where it is on a DC. There is someone who will read this that has already done it and I hope they pop in and contribute.

 

[Thad]

We done it on a C i pull. I cant remember exactly what we had to do but it wasnt that bad of a deal. I know we had to do a little grinding up in the shifter linkage area but it was nothing major. We used a combination of gears from 2 DCs to get mine slowed down to what i wanted. We changed the input gears and trans gears. I have 14 9 28s on it and its just a little over 3mph at 1600rpm. Hope this helps Thad

 

[Anonymous-0]

I put a 37 CC gear set in a 40 DC to speed it up, not a drop in deal but possible, 2nd gear is a little differen't so you need to change forks,tried using fourth with the CC shifter, didn't work, length of shifter is longer on CC and had to offset the 2nd/reverse fork 1/4inch. I did the reverse of you but the problems will be similar, it can be done but takes some time of mismatching parts and messing around, you should find gears 1943 or older because the later models has a longer 1st reduction shaft with differen't brg. on the LH side.

 

[Anonymous-0]

to elaborate more I also put a CC trans cover on a 40 DC , another problem with using 4th is that the dc has 2 rods going from the shifter assembly to the side of the trans. so the bump on a dc is bigger so if you make the forks work you also need to modify that part and the rods that the forks slide on have the detent grooves in differen't places.Possibly you can shorten the CC shifter, I just forgot about 4th as I didn't need it for pulling, it takes alot of trial and error and can be done but you need to be handy mechanically and will have to mix , match and alter some parts to make it all work out so it shifts right, not much just bolts in and works.

 

[mEl]

Thanks for the additional info guys, I have never done it but thought the models were more similar than that. Thats why I read more than I type, thanks for increasing my knowledge base. mEl

 

[Anonymous-0]

the shafts and bearings are compatible, the problems are with the shifters and proper orientation of the gears, as I said it can be done but takes some creative thinking. My son pulled the 40 DC in 4500 Sat. night on a gravely track easily spun it out in 2nd gear (6mph) it will easily do over 4mph in 1st, exactly what I wanted.

 

[DGKCCase]

Thanks for all the info.I will start with the input and bevel gear.The DC has a lower ratio than the CC.I pull Dead weight classes 4500-7500 it dose very well,I just need a little lower gear for 7500 lb. class on a good track.David