I installed a 120mph speedo and a v8 tach and the pointers were mismatched. They are metal. I cleaned mine with alcohol on a cotton ball then repainted them with reflective paint for gauge pointers. I used this brand in red but here is a link for orange.
Amazon product ASIN B0031VVID8View: https://www.amazon.com/ORANGE-Needle-instrument-cluster-gauges/dp/B0031VVID8
Here is white needle paint.
www.whitegauges.net
Amazon product ASIN B0031VVID8View: https://www.amazon.com/ORANGE-Needle-instrument-cluster-gauges/dp/B0031VVID8
Here is white needle paint.

Hope to have my 8 track installed and wiring for the secret audio done by the end of the week. Then starting the wiring for the dash board and engine gauges. Then the engine. I seem to have a bunch of extra parts now. Just found a 300 watt new stereo amp. Free to anyone who needs it.

Or maybe heating it with a torch could help. I don't remember there being any Loctite on mine, but it's been a long time and not out of the question so heat might just work.
Also installed new brake line from back to front. New air shocks painted and almost installed. Just need to attach to axle. Then front stuff. As a side note. Had to drive my wife to Bandon Oregon for a meeting with someone she is doing so work for. Instead of sitting around during this I was taken on a tour of the property......lots of it and many old burns/shops. And this 1948 Ford pickup jumped out at me. No really it did. Been sitting there for 25 years. Has bad generator so why fix it???? found out it may become a flower pot in front of someone's business. Truck is complete down to the really old lic plate and OEM flathead. So, if the underside is as good as the rest I want to get this. Just need to convince my wife this is a good deal........Also found a 1971 Thunderbird with a 429 thunderbird engine. Thought these were bringing in good money. Found out not anymore. Body in good shape, but front is kinda ugly.....no real market for that year. Also a 35 Chevy, complete. Just walked pass it.