× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: GMC 4+4 Turbo 350 conversion
Posted to Transmission Forum on 12/30/1998

[...trimmed text...]

If you do use a 350C, install a higher rate pressure switch such as a 48psi, to prevent the tcc locking up at lower speeds. This raises the speed to at least a cruising speed above 50mph. My old Ponti... Login to read more.