Steve St.Laurent
Staff Alumni
I was down in Ohio this week at Enterprise Engine Performance (Dave Mitchell's shop) with Gene Mohney getting our Joe Donnelly modified Sachs clutches installed (along with a transmission rebuild for Gene and a 5th gear nut fix for me). This clutch HOOKS (mine has a 3700 lb pressure plate and brass pucks) - although it's not for everyone! I have no doubt that this clutch will hold all the power I'm ever going to feed it. You can tell that the stock clutch slips slightly (and this one doesn't) when shifting gears or when going from slight acceleration to slight deceleration (as when convoying in a big group of Cummins Dodges and trying to maintain spacing
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). With this clutch there is a slight shudder at those points because there's no slip, with the stock clutch it's smooth. Off the line, if I leave at idle in 2nd gear like I always have there are 2-3 small shudders if you are at a dead stop, if you are rolling at all it's smooth. The pedal pressure is increased over stock but not excessively so. The feel of the clutch takes some getting used to though. It's just like a compound bow where it takes a lot of force at first (about the first inch and a half of travel) and then very little after that. I'm getting used to it now (I have 800 miles on it) and am getting smoother with it. It just takes a little muscle memory learning. IMO it's well worth the trade off's if you need a heavy duty clutch. Some people would not be happy though (my wife probably won't drive the truck any more, not that she drove it much before anyways - some of us may consider that a GOOD thing
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). June 9th both Gene and I will be hooking to a pulling sled and will have abuse reports at that time.
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-Steve St. Laurent - President of the Great Lakes TDR
'98 QC LB (CMNSPWR), 4x4, ISB, 5sp, 4. 10 LSD, TST Powermax, 275hp RV injectors, Joe Donnelly modifed Sachs Clutch, custom ladder bars, SW fuel pressure gauge, BD exhaust brake, Isspro turbo temp monitor, front Draw-Tite receiver, rear Draw-Tite class V receiver, BFG 285/75R16 AT KO's, (all the common stuff clipped)
[This message has been edited by Steve St. Laurent (edited 02-18-2001). ]

). With this clutch there is a slight shudder at those points because there's no slip, with the stock clutch it's smooth. Off the line, if I leave at idle in 2nd gear like I always have there are 2-3 small shudders if you are at a dead stop, if you are rolling at all it's smooth. The pedal pressure is increased over stock but not excessively so. The feel of the clutch takes some getting used to though. It's just like a compound bow where it takes a lot of force at first (about the first inch and a half of travel) and then very little after that. I'm getting used to it now (I have 800 miles on it) and am getting smoother with it. It just takes a little muscle memory learning. IMO it's well worth the trade off's if you need a heavy duty clutch. Some people would not be happy though (my wife probably won't drive the truck any more, not that she drove it much before anyways - some of us may consider that a GOOD thing

). June 9th both Gene and I will be hooking to a pulling sled and will have abuse reports at that time.
------------------
-Steve St. Laurent - President of the Great Lakes TDR
'98 QC LB (CMNSPWR), 4x4, ISB, 5sp, 4. 10 LSD, TST Powermax, 275hp RV injectors, Joe Donnelly modifed Sachs Clutch, custom ladder bars, SW fuel pressure gauge, BD exhaust brake, Isspro turbo temp monitor, front Draw-Tite receiver, rear Draw-Tite class V receiver, BFG 285/75R16 AT KO's, (all the common stuff clipped)
[This message has been edited by Steve St. Laurent (edited 02-18-2001). ]