This pressure helps to keep the fluid temperature steady and also prevents damage to the internal components of the transmission due to extreme wear or heat. The cooler line pressure on a TH350 transmission is typically set between 40 and 50 PSI. With this information, you should be able to confidently install and maintain your own turbo 350 transmission cooler lines with ease! TH350 Transmission Cooler Lines and linkage problems. We’ll also discuss why it’s important to have them in your vehicle in the first place. Here we will provide an overview of how these lines are installed and connected, as well as tips on how best to maintain them. If you’re looking for a Turbo 350 transmission cooler lines diagram, then you’ve come to the right place. The diagram should also include any additional hoses that connect directly to either side of these two main components for added protection against overheating and wear caused by extreme conditions. There are two types of coolers: external and internal.Įxternal coolers use air to remove heat from engine oil before it enters the transmission while internal coolers utilize a radiator or other type of heat exchanger to reduce temperatures inside the assembly itself The Turbo 350 uses both an external cooler line routed from a thermostat on top of the radiator, as well as an internal cooler within its own housing. The diagram will usually have a schematic that shows all of the components in the system, including the lines going to and from each component. YOKE, SONNAX T3-3-6081HP, Powerglide, 200-4R, TH350, 700R4, 4L60E, Muncie M-20, 21 & 22 with 27-tooth spline, Saginaw 3- & 4-Speed $ 253.Turbo 350 transmission cooler lines diagrams show the flow of fluid through the transmission cooling system.Unless driven gears with more than 45 teeth and / or drive gears with fewer than 15 teeth become available, it will be impossible without using a ratio adapter to have an accurate speedometer with rear end gear ratios lower (higher numerically) than 4.10:1, unless 27 inch or larger tires are installed.Ĥ5 will work, but will read about 3 MPH fast at 50 MPH. The number on the driven gear housing must match the number of teeth on the driven gear. Twelve speedometer driven gears are available for the 700R4 / 4L60 transmissions to calibrate the speedometer with various axle ratios and tire diameters. Your speedometer may or may not show a number. These numbers are the number of revolutions the speedometer cable must turn in one mile of travel. Look at the bottom of the speedometer face for the numbers 940, 960, 1000, or 1020. There are two driven gear housings, one for 34 through 39 tooth driven gears and one for 40 through 45 tooth driven gears. Most cars and trucks with low rear end ratios will take a 15 tooth drive gear. The following speedometer drive gears and driven gears are available for the 700R4 / 4L60 transmissions. Variables such as the vehicle’s axle ratio and tire diameter affect the accuracy of the speedometer. To determine your rear end ratio, raise both tires off of the ground, turn both tires at the same time one complete turn, at the same time count the turns of the drive shaft, this is your ratio. The actual run out of the tire can be as much as 2 to 3 inches less than what the circumference of the tire measures. To determine your tires true diameter in relation to determining what speedometer gears you need, measure from the ground up to the center of the axle then multiply by two.
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