Find a location to mount the cooler and determine how much space is available.
Consider the cooling requirement for your application when sizing coolers (see below).
Transmission oil coolers are given a GVW rating. Select a cooler based on your vehicle’s GVW rating. Select a larger cooler for heavy towing/racing applications where greater cooling capacity is necessary.
A standard 4-pass engine oil cooler is adequate for most large-displacement V8 engines. For larger engines or high-horsepower, severe duty applications where more heat is produced, select a larger cooler.
Consider a remote-mount cooler-fan combo unit when the cooler can’t be mounted to the radiator, or when airflow past the radiator is not adequate for cooling (ex. Low speed off-roading).
Determine which cooler fittings are appropriate for your application. In addition to the standard fittings, many Flex-a-lite coolers may be purchased with alternate fittings as a special order.
Determine any additional fittings and adapters that may be required to complete your installation, and have these on hand.