There were two kinds of letters listed on Amazon. One got 3.5 stars and the other 5 stars. I went with the 5-star reviewed ones.
https://www.amazon.com/gp/product/B01JJ7HCE6/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
EyeCatcher Tailgate Insert Letters Compatible with 2016-2021 Toy Taco (Black Matte) https://www.amazon.com/dp/B01JJ7HCE6/ref=cm_sw_r_cp_api_glt_fabc_WJNXXR4ABSRSG986604J?_encoding=UTF8&psc=1
EyeCatcher Tailgate Insert Letters Compatible with 2016-2021 Toy Taco (Black Matte) https://www.amazon.com/dp/B01JJ7HCE6/ref=cm_sw_r_cp_api_glt_fabc_AKXPKGGF9S0748JA80SG?_encoding=UTF8&psc=1
I bought mine off amazon, 30 or so bucks. Check my post history for pictures. Plenty of car washes and lots of snow they are all still on.
https://www.amazon.com/dp/B01JJ7HCE6/ref=cm_sw_r_cp_apa_i_BtSoEbQMGDKKM
Hi truck twin. Looks great. You should black out the chrome next:
$40 - https://www.amazon.com/EyeCatcher-Tailgate-Insert-Letters-2016-2019/dp/B01JJ7HCE6