Take this as an opportunity to flush ehe coolant, replace hoses etc. Removing the radiator is very easy. Only a couple of clips hold it in. Order new grommets that insulate the radiator from the body. Leave the oil cooler installeded unless changing hoses.

Radiator out means easy to access crank bolt to turn engine and adjust valves.

Also, hoses going inside the cabin are likely neglected. Battery and removable center panel come out. Check for rust, POR the battery tray, clean leaves etc.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.