I would be happy to help you find the correct replacement leaf spring mounting bolts for your 2020 Forest River Wildwood Heritage Glen 22RBHL Travel Trailer but unfortunately we do not have a break down of the components used on a specific trailer.
The most common bolts used are 9/16" but you will need to remove one of your current bolts and measure the diameter of the bolt and length to confirm the correct replacements.
For example the Wet Equalizer Bolt with Locknut and Grease Zerk... view full answer...
The Advent AC Kit # ACM135CH does come with the heat strip but if you need to replace it or you have the standard Advent AC Unit ACM135 then you can do that with the part # ACMHD.
Attached is a review video for you to check out. view full answer...