14bff drw wms needed

[jones]

it's on an '85 c30 2wd 1t. dually.
spring perch width?
typical gear ratio?
factory traction aids?

Thanks
Note: engine:350ci;hydro 465

 

[u2slow]

WMS is touted to be ~63".
40.5" spring spacing.
4.10 is typical, but 4.56 or 3.73 are possibilities.
optional Gov-bomb.