Sorry I can't help with the exact measurements you require. Just wanted to say hello .
If another member can't provide the info your after, I believe Tiffin has a toll free help line. I'll see if I can track down the number.
Is your coach built on a Freightliner Chassis ? Cummins powered ? ISB, ISL ?
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.