Update on led turns in rear. I found some which claim to have have built-in resistors to avoid hyper flash. Plus they're amber, so I hoped they might come through the red lens at least with a hint of amber. Good news/bad news. Good news is they work perfectly, no hyper flash, flickering, etc., no warning on dash of bulb out, and they're really bright. They appear to have a very good build quality and they use 3014 SMD led's, which are high output. Bad news is they come through the lens red, just as if they were a clear bulb. But I'm happy to get a nice crisp, bright turn and hazard flasher. By the way, the rear turn signal bulb is identical to a regular 1156 bulb.
Dang, I forgot to include link. Here are the bulbs I bought: https://www.amazon.com/gp/product/B07VZZXD8G/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1