There were several routings over the years. At some point in time the gauge output was moved from front to back. The 228 and the 302 were probably routed differently.

Check the site GMCJoe linked to.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.