Yes, I have the Factory JD bucket indicator, & yes I could re-adjust it for the forks on the ground, but as soon as you raise the FEL the angle changes on the forks and the level indicator no longer applies, I want to be able to keep the forks level anywhere from the ground to any height it is raised.
The main reason I bought the pallet forks is to unload large truck & tractor trailer deliveries. ie. fire wood, feed pallets, new air compressor, & large truck deliveries for the large pallet mounted (sheet metal, new 5-speed trans, engine block, etc.) restoration parts for my 59 Chevy Pickup. etc. if not it is a $125.00 fee every time a truck company has to come to my farm with a power tailgate truck instead of the normal tractor trailer setup.
I will probably have to make something up, maybe modify a tilt meter like they use on off road vehicles that has front & rear + side to side angle readings, just large enough to see from the seat to the back plane of the pallet lift, unles they make a remote unit with the sensor on the lift & the head unit near the tractor dash, I will let you know what i find.
Thanks to all that have answered.