Thanks for those measurements, and we do have Solera slide toppers for your 79-1/4 inch, 85 inch, and 86 inch slides, which are the following parts:
- 79-1/4": Solera RV Slide-Out Awning - Black # LCV000168105 or White # LCV000163285 (note: the product pages say these are for 74" - 79" wide slides, but they are technically for 74" - 79-3/4" slides)
- 85": Solera RV Slide-Out Awning - Black # LCV000165062 or White # LCV000163287
- 86": Solera RV Slide-Out Awning - Black # LCV000168106... view full answer...
If your current inner bearing is a 25580 with a 1.75 inch ID, the outer bearing is 14125A with a 1.25 inner bearing and the bolt pattern of your current hubs is 8 on 6-1/2, the Dexter Axle 42866UC3-EZ 7K hub you'd looked at would be the correct replacement. The hub uses a GS-2250D grease seal, which has a 2.25 inch ID which matches what you found with your existing hub/drum.
You can indeed reuse the existing castle nut and cotter pin, and the # AKEBRK-7-SA self-adjusting brake assemblies... view full answer...