Daryl, JWGarage, bought the dies that Dearborn Manufacturing used to stamp the Accure rails . I have three pairs and feel they are better then the ones I have used in the past...
Well.....one of the guys at the JW booth at the Des Moines GoodGuys show told me they were NOT the Dearborn dies. Either way, they look nice except for the goofy radius cut on each end, but, I have never had one in a jig.
When I bought the rails from JWG I also bought a accure chassis that they recieved in the deal with the dies, One set of rails with another set one size smaller pressed in for the boxing..Good product...
I bought a set of these rails from Eric. When I put them in the jig they fit so well I could tack them in place without even clamping they fit so well. American Stamping rails aren't nearly as nice.
I've got JW rails in a chassis jig right now. Pretty damn nice fit. Minimal clamping, boxing plates fit well with minimal grinding. Not pinched, bobbed rear for my '29 Sedan.