1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

napa clutch or southbend clutch?

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Old Dec 13, 2009 | 09:15 PM
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tltruckparts's Avatar
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From: Lincoln, CA
Default napa clutch or southbend clutch?

will a brand new napa clutch do just fine with my upgrades or is the southbend clutch absolutely necessary? i don't want to spend the extra cash but if its 100% necessary i will
 
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Old Dec 13, 2009 | 09:40 PM
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big bad diesel 416's Avatar
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NO NAPA THEY SUCK
 
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Old Dec 13, 2009 | 09:42 PM
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what kind of napa clutch is it it all depends do you tow, race kinda deal there are many clutches out there there is the luk gold which holds up good

but tell us what you use the truck for then we can answer better
 
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Old Dec 13, 2009 | 09:45 PM
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put it this way when you burn 2 clutches in a year on a DD rig (my 1993 light modded dodge) there junk i put 14000 miles on that year so a 7000 mile life for $500 is a smoking deal NOT
 
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Old Dec 13, 2009 | 10:15 PM
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Problem with napa performance clutches (Zoom) is they tighten with RPM. I can't confirm and have no solid numbers, but the little bit i've heard about them being run behind a diesel is they don't tighten up fast enough and slip at the low rpms with all the torque.

The zooms are pretty nice in a gasser though. My buddy put one in his honda and its held up to his awful riceboy driving.
 
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Old Dec 13, 2009 | 10:50 PM
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looks like i wont waste my money on a napa clutch then. hopefully someone has a southbend or valair in stock tomorrow cuz i gotta get my tranny in on tuesday
 
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Old Dec 13, 2009 | 10:53 PM
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Get with Tony from Mighty Diesel. He gave me a super deal on a Valair DD.
 
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Old Dec 14, 2009 | 10:59 AM
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I would have to recomend the South Bend Con-O. I just finished installing SBs 13" Con-O - Fly wheel, clutch disk, PSI plate and TO bearing. The fly wheel has their oversize pilot bearing. I also went with their HD hydraulic M/C and Slave cylinder mainly due to Dodges less than stellar setup - it's the best setup I have ever had including the original setup. BTW I bought the truck new in Jan of '93. Their tech support was excellant - helped me through my mistakes.

Bob
 
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Old Dec 15, 2009 | 03:57 PM
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i have the south bend 13" con-o 400hp/600ftlbs works great good price can't complain yet
 
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Old Dec 15, 2009 | 10:22 PM
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i ended up getting the southbend over the valair. i couldnt afford the big upgraded one so i got the 0090 clutch. i ordered it yesterday at about 3 o clock in the afternoon from tony at mighty diesel and i was at my house this morning at 11AM couldnt beat it. i installed it all today just gotta put the transfer case back on then ill tell yall how i like it
 
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