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Showing results for tags 'transmission problems'.
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Ok this is not a question about a SS truck but is a question about a high HP truck. I recently built a 383 stroker for my 1995 GMC Sierra and I am having issues with the 4L60E transmission holding up. The truck is lifted 7" and has 35" tires with 3.73 gears. I had the transmission built also but the motor is putting out about 475hp and 500ftlbs torque and it blew the sprang after about a month. I am going to be putting a Dana 60 with 4.56 gears in it but I'm not sure if that will solve all my problems or not.. I have considered cryo treating but I've never heard of anyone doing cryo on a sprang or if it will even make a significant difference or not. Basically I'm looking for a way to keep my 60 trans if possible..if not probably considering an 80 swap. I'm just looking for any input information or past experiences, and if you have any time to share it it is much appreciated! Thanks, Matt
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