I ordered these thinking there were two different lengths on the bottom. The long adapter makes it impossible to use a quality valved quick release adapter on the faucet as there isn't enough room on my '89 Deville with the shock tower. However, you can install a cheap A/C charge hose with a built-in pressure gauge on the low-pressure side. But I don't know how to put a connector there to siphon the system. So it doesn't work well with late 80's/early 90's Cadillac DeVille/Fleetwood. You will need a 90 degree angle adapter.
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