RiverRat2

Looking to upgrade my stock clutch, It's beginning to slip in higher gears if I stay in the throttle too hard it has 44K mi on it. The one I'm looking at in the DTR store is on sale and Its rated @ 425HP @ 900 Ft. Lb of torque,,, has any body here run or running one. Your thoughts please

railroaderone

If it's the 3250 I have one and once you get used to the slight increase in pedal pressure you will love it.

When pulling out its best to use low gear and I have found that while backing. Trailer it's easier to use 4 low so you don't have the bucking and grabbing.

Danderson

I have it. I carry around a 2000# 24/7,Smarty on sw#5 defaulted. No slippage at all. Silent operation. Delvac 50 and some 5-30 synchromesh minimizes trans noise.

Grit Dog

My buddy put a 3250DD behind in his NV5600 truck. I have a con ofe in mine. The 3250 is less pedal pressure and engages slightly smoother then the ofe.
His was on stock hydraulics too which held up for a coue years at least (sold it). I have south bend hyd.
Neither of them slip under a decent tune with a good sized trailer

CaptainKelley

+1 ConFe
Pay attention to the power ratings of the clutches. Plan ahead for future power additions. The stock one is rated to some 750 ft/lbs. That's why any added power causes it to slip.

jhenson

Had a ConOFE for a few years until the rivets in the center section started coming loose. Held the added power with NO problem at all. Went with a ceramic Valair unit the last time......holds even better but, like the company states....."It's either in or out!" It's so grabby that once it starts catching.......you're going.......no if's, and's, or but's about it. Pulled a goosneck with my son's 3/4 ton Chebby on it with zero problems......but, like stated before about the SB heavy duty, 4 Lo is your best friend while trying to back up.

The stocker is a happy medium between holding and slipping. Any deviation from the factory material and it's gonna become more grabby.....you'll understand what we're talking about once you install the new unit. I love my Valair unit but even backing up out of a parking space can become embarrassing because of the violent bucking that can occur. I'm in no way trying to deter you from purchasing a better clutch, in fact, I'm all for it...I'm just letting you know what to expect.

carl48

the southbend kit has a solid flywheel, a real pilot bearing, new hydraulics and the best single disk option is the conofe the dual disk is the 3250. we tow very heavy we are at 425-450 hp and 900 to 1,000 ft lbs torque, all 06 trucks are conofe. we use exhaust brake extensively and as jhenson said the rivets sheared on one of ours with a 150,000 on the disc. the disc is not happy with the reverse torque of the eb and get's a 100 times nosier before failure. they make the conofe with spring setup for back torque for trucks using engine brakes, this is the disc I went back with. wish I had known about it to start with.

cLAYH

I've had a SB clutch(single disc) for almost 70,000kms with some of that towing 18K, usually around 4-5k though. Has never slipped but with the 18K load I do find trying to take off I get a lot of bucking, there isn't a lot of slip in that clutch for pulling away with a heavy load. Everything else I usually pull away in 2nd and its fine.

RiverRat2

Man Decisions decisions???? I know, right????

This sounds like the best option!!! Just saying

Danderson

This clutch shares the 3250# pressure plate like the DD.
Recently I drove an '03 CTD with an unknown single in it. That sucker clamped but takeoff and reverse were pretty chattery.