How difficult are these to replace, and where do I buy theM?

Thanks

Check the archives. There are many posts in there regarding cutting and repairing the cooling lines. Most people seem to replace the bad section with a short piece of fuel injection hose and then clamp securely to metal lines. Also keep them away from exhaust. Has worked on mine for awhile now....

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90 244DL 255K - original engine/drivetrain :)

I have never replaced a complete line, but have repaired several worn, leaking sections.

Using a small tubing cutter, I cut out what ever length is convenient, then spliced in a piece of 5/16" OD copper tubing, using brass Compression Unions. Both tubing and unions are found at Ace Hardware, Home Depot, etc.

Works good on older 240 (rusty steel) fuel lines too.
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Bruce Young
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.

I replaced sections as well. We cut out the broken parts of the line, and fit in a length of rubber cooler hose, slipping it several inches over the existing metal lines, and double hose clamping each end. Maybe not the ideal repair, but it was cheap and easy, and is still working. I could have ordered the proper lines through a local foreign car parts store, but they were expensive and would have taken a while to come in.

I replaced mine a couple of years ago. Got them at the dealer. Not exceptionally hard to do, but there isn't that much clearance at the transmission end. Took a lot of time making very small turns of the wrench to get the fittings off. I mean really small turns, flip the wrench around, small turn, flip the wrench around....you get the idea. If anyone has a better way I would like to know. Not that i want to do that job again, but you never know...