nook
+1y
May as well add my 2 cents worth, There are several brands to choose from, most are just OE replacements, some claim high performance, the limiting factor with performance clutches in the Toys is the hydraulics, they can only push so much pressure before they fail.
Personally I have the centerforce2 in one of my rigs, have had great results for many years, my other runs a LUK clutch, nothing more than an OE replacement, but stands up fine to the supercharged engine. I have ran the LUK behind a healthy 22R stroker, also with fine results.
The centerforce uses the weights to increase clamping force at higher RPM from the centrifigal force, so it can run lower pressure plate spring pressure.
A friend used one of LC performance clutches, it worked fine, BUT, had such heavy pedal pressure that it was not user friendly, especially for his wife to drive, plus in the year that it was in there he went through 3 slave cylinders and 1 clutch master cylinder,
Also Seth, for what its worth, the later Toys used the fixed length rod between the slave and the throwout arm, no adjustment other than pedal height under the dash, the early 75/78 trucks used an adjustable rod so you could adjust some freeplay if needed. With the fixed rod any variations in clutches can make the clutch engagment either too tight or too loose, if too tight the throwout bearing rides against the pressure plate all the time just shortening its life, plus has slight hydraulic pressure taking up all the slack in the system, as things heat up the fluid can expand and lightly engage the clutch, causing slippage,