Help from anyone who has had a Chevy before

So, I may need some help from you that may have hador still has a Chevy before. The 41 Chrysler Street rod needs a front end rebuild.

I contacted the guy that built it, and he said he made it with the front suspension of a 70 Monte Carlo, I never believed that as its way too narrow.

I called him the other day and he said it may be 69 Nova, can any of you guys help?

I googled the part number of the Pitman arm pictured and it comes up as a 68-69 Chevelle/Firebird/Camaro, so possibly a Nova too,

I tried the caliper pictured but it didn't come up as anything, do the pictures look familiar to anyone?

I also tried posting on a few Nova websites