bolt in sub frame connectors

Dano the biggest problem I am finding and it may not be correct is the wheel base. I believe my 67 Fastback has a 108" wheel base and all of the bolt in/weld in are for a 111" wheel base. Can anyone confirm? I am sure there has to be a company out there that makes bolt in connectors for my 108" fastback wheel base:(.

Can someone who has a 67-69 fastback chime in on what they used? Thank you