[T2] Longer rear shocks

[Richard J]

I'm looking for some shocks for my bus that travel slightly longer than the ones I have.  I have some cheap monroe's on there now, but had KYBs, that went bad.  My bus has the spring plate turned up one notch in the rear, so my bus actually sits level with no sag in the rear.  Problem is, when the bus isn't loaded the shocks top out.  Put 100lbs in the back and it's fine.  Anyone know of some shocks that would fit the bill? 

Thanks
Richard
1974 Tin top Westy.  
Lubbock, Texas