That is a big one you might want to get a 36" instead of a 44" measure on top of your van and see where 44" ends up...top or side of a rib is a no go on the seal....
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146 WB
'92 CHEVY G30 454 BEAUVILLE EXT 146 WB