Engine/Transmission (1994 - 1998) clutch replacement

[tblb0900]

Its time to replace my clutch and I am looking for some input. I am not sure if the clutch I have matches my signature or not. I bought the truck from a former member who I am not in contact with anymore. I copied his signature and pasted it to mine. I do know that he replaced the clutch right before he sold me the truck. I am currently looking at the south bend sdd3250 on extreme diesel.com and was wondering if this clutch is a good fit for me. I don't haul often, but when i do it is usually 2 horses with a total weight o approx 7000-8000 pounds with trailer. The clutch i am looking at comes with a flywheel and offers a heavy duty hydraulic package for a few bucks extra. I have changed the trans on this truck(nv4500), but never messed with the clutch. This will be my first clutch replacement so I was wondering what to be prepared for. This kit says that it will require a 1 3/8" input shaft upgrade. Does this mean I will have to take the trans apart to do this? Maybe there is a better clutch for me. Any input would be helpful. Thanks

 

[Dieseldemon]

The cono clutch will work just fine for this truck, Does the truck have a 13" flywheel or 12 1/4" if it has the 13" you need a 1947-O clutch if its 12 1/4" you can upgrade to the 13" with a 1947-OK which includes the 13" flywheel these are South Bends #s
Hope this helps

 

[Joseph Donnelly]

If it is a 215 HP engine, the #10 plate fully forward wil give 370-400 HP, 900-1000 ft-lb, and egts at or over 1600 degrees. You need more turbo, or move the plate back .090" at the minimum. As for the clutch, the con-o probably won't hold. The con-FE should, as should the double disc clutches from South Bend.

 

[ata]

Reading what you have said it sounds like you already have a 13 inch P-Plate and Disk. You also have a 12 1/4 flywheel that is drilled for the 13 inch P-Plate. So really all you need is a new disk and p-plate throw out bearing and pilot bearing. Probably need to resurface the flywheel. Save yourself some money and forget about going to the 1 3/8's input shaft. I would also go to the South Bend CON-O disk with the 10 plate all the way forward. You should not need to up grade the hydraulics with this set up but you can if you want.

 

[Dieseldemon]

The FE clutch is too grabby if you pull a trailer and try to backup they also eat the flywheel

 

[tblb0900]

I am not sure which flywheel I have. I am still driving the truck right now. Just want to be as prepared as possible to minimize downtime. I will drop it down and post back. It may take a little time. Thanks for the help.

 

[Joseph Donnelly]

The five speed design flywheel has the ring gear away from the starter such that the starter is bolted directly to the aluminum block adapter plate. The HO 6 speed flywheel has the ring gear closer to the starter, and will have a spacer between the starter and the block plate, 9/16" thick, up through 2002. In 2003, Cummins began using different block plates for HO stick and auto, so the plate itself has a raised pad for the starter.