ehwhitt Report post Posted June 21, 2023 I need to buy a set of tires for a 2016 Forest River FR3…I bought the unit used in 2018 and cannot find the MSPN number anywhere except on the tires on the unit…although the tires are the correct size by the VIN plate, they ride really rough and I am not sure they are the correct MSPN for the coach…Where or how do I find the manufacturer MSPN…it is not listed anywhere on the VIN plate…Any help will be greatly appreciated… Share this post Link to post Share on other sites
dons2346 Report post Posted June 21, 2023 Welcome to the forum. Share this post Link to post Share on other sites
rayin Report post Posted June 21, 2023 What is MSPN? The original tires were 245/70R 19.5G. There are not many mfgrs. of that size, I think Michelin is the only mfgr. actually, but there are alternate sizes of the same diameter and load range available. Your chassis is a Ford F53 truck chassis, it's going to ride like a truck. Share this post Link to post Share on other sites
wildebill308 Report post Posted June 21, 2023 Welcome to the forum. Have you called Forest River 1-574-825-7000 or email ownerrelations@forestriverinc.com. Bill Share this post Link to post Share on other sites
wildebill308 Report post Posted June 21, 2023 By the way Continental makes that size 245/70R 19.5G and it is available through the tire program in both G and H load range. I would look at going up to a 265/70R19.5. You can compare size with this comparator tool. https://tiresize.com/comparison/ Bill Share this post Link to post Share on other sites
