Get a large diameter bolt 3/4"+, some thick washers, and some nuts. Put the nuts and washers inside the arm where the bushing goes with the washer against the arm. Now use the large bolt with the nuts to spread the arm back out. You turn the nuts away from each other to use them as a spreader. You may have to tack weld one of the nuts to keep it from moving. And you will want some chassis grease on the threads of the nut and where the nut meets the washer to help with rotating friction.

If they actually put van LCAs in your truck. They use a larger thru bolt to hold the LCAs in place. So may want to check that before doing any thing else.

If they actually put van LCAs in your truck. They use a larger thru bolt to hold the LCAs in place. So may want to check that before doing any thing else.

Shoot if anything couldn't I get smaller bolts. And weld some washers on?

Yes, BUT you would need the washers properly centered. If you go the welded washer route I would get the alignment dialed in BEFORE welding the washer in place since it will affect the specs.

If you wanted to get super fancy for no real gain you could weld eccentric mounts around the hole and then use "cam" bolts for adjustable camber/caster.