If they've rotted, some heat, oil and a good pair of mole grips.
Or cut the buggers off with a grinder
Then cut and make the old bolts flush and drill then out to fit bolts if you're using the part again
If they've rotted, some heat, oil and a good pair of mole grips.
Or cut the buggers off with a grinder
Then cut and make 5be old bolts flush and drill then out to fit bolts if you're using the part again