[roboticjunky]

Here are a couple above the bed rail tri-fold hard covers for 88-98 trucks that are fleetside, but they don't go fully over the rails like a solid 1 piece tonneau cover.

https://www.ebay.com/itm/29423908261...RoC3yMQAvD_BwE

https://www.ebay.com/itm/35301943176...BoCEBMQAvD_BwE

https://www.autoanything.com/tonneau...-tonneau-cover

https://shop.redline360.com/products...gn=sag_organic