![]() OEM Mazda (made by Exedy/Daikin) stock non-turbo Protege pressure plate has a 1169 ft lb clamp load (aftermarket OEM replacements at the auto stores are for this model) Be weary of using unknown high pressure plate clutches, they will put undue stress and wear on the hydraulic assembly, clutch release fork, throwout bearing, and the crankshaft thrust washers.If you have grinding issues shifting into gear, you will have to replace the gear selector hub and synchros together and the gear.Driveshaft shop used to make upgraded axles, but have discontinued their product application, they may or may not still make custom setups.PAR also can make a full gearset for those with unlimited budgets.The clutch housing side is still weak where and there are no manufactured solutions available to reinforce the bearing load on that side.Use a micrometer to measure for yourself before machining your case for those plates. We installed 3 of the replicated versions and found large variances in the machining plate tolerances where proper shimming was not attainable without major work. Hydra/Exile replicated this plate and we believe they are inferior to Ferdi’s version. Ferdi made a steel case plate that requires machining which will help alleviate some of this problem. PAR still makes a bearing cup reinforcement.The bearing cups also come loose and spin in the aluminum casing causing deflection and movement. The weak transmission problem still lies in the aluminum casing in which high rpm and high power loads cause the case to flex and the clearances for the main and counter gears to shift and grenade the gears.PAR is the only one that has a synchro upgrade option.Stronger replacement gears are made by MFactory (500hp version) and PAR straight cut gears.GTX gears are not stronger replacements, they still have failed.MSP axles are strongest due to being 2mm thicker The Quaife fits the MSP and regular Protege axles, thus any Protege M/T axle will interchange as well.Quaife is good but the hardware fasteners to install it are hard to find. Don’t even bother using a Phantom Grip on converting open differentials. Mfactory is the best alternative option.The MSP uses the ABS sensors to determine speed. Some transaxles will have the speedometer gear which are not needed on the MSP, you can leave them in if you wish. ![]()
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