I had the same problem with my Suburban. Read about it here.

I added a pair of Walker #17852 near the end of the pipes. It now has a nice mellow sound going through the gears and it relatively quiet on the highway.


"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.