We replace the steels after a few races regardless of the shape. In my opinion not worth the extra cost for a trail or daily driving because the treatment process will wear off. You can upgrade to Alto Reds/Raybestas red devils and Kolene steels, which will hold up to higher heat levels for a longer duration of time, but the thing to remember is that the Kolene steels is a steel with a treatment process, so what I have seen after a few races is the treatment is gone with little use. Off-road use, Rock Crawling, Ultra 4 and desert Racing is a lot of stress on the internal parts of the transmission, they go through a lot of shock loading of the parts.Īlways use a Good Overhaul kit with woven Frictions like Raybestas or Borgwarner oem quality. The biggest thing to remember is that most performance Mod’s are for that only Performance, but actually decrease the life of the Transmission, Mods are not parts, parts are changed for strength and holding up to bigger motors, High Horse power and torque. If your Car is under 400Hp and its only use is Trail and lower Rpm, a Good Overhaul Job will be Fine. Jimmy's4x4 response to my PM, reposted with permission: Here is a link to a album where I stash Th350 parts photo's We also have apretty good line of coolers. We also stock shifters, shifter cables for winters and art carr shifters. I sale all these parts and complete Transmissions. Tap your vent and run a 1/4 barb w/ good 1/4 ID hose. Some High end builders prefer the teflon sealing rings over the centered alloy rings that run in the direct drum. Turn a little thickness off the direct piston to add a 5th clutch. and a lot of really high end builders (Kroyer) uses them. I have 300m rear output shafts for the th350 also, no Gov-gear provisions so needs to be Full manual.ĭo not use any Kevlar frictions, they strong for quick hard shifts in a drag car, but have no holding power.Īlto reds are good in a car thats gets hot for a longer period of time, but a regular, good OEM style friction from Raybestas or Borg-warner.are actually really good. With higher Horse power motors a new 300m or Vasco input shaft is a good idea. Low sprag, most builders use a center support from a 700R4, but you can get one with a retention plate to help keep the outer body of the center support from spinning in the case. Or a new drum with 36 element sprag for High HP motors. Intermediate Race, you can buy a Hardened Race that works with OEM style Roller Clutch Here is a quick break down on some Th350 parts That I use and why.
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