Re: first year for 10 bolt fronts?
According to ck5 - http://coloradok5.com/specs.shtml
there were either a d44 or 10 bolt starting in 1977 & 1978 with the 10 bolt being the only option starting in 1979.
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'71 C10 LWB 400SB/350TH
'86 K2O LWB 350SB/400TH-6" tuff country lift, Shackle flip - plow truck
'06 HHR - wifes wheels
'01 Blazer - daily driver
"It's better to burn out than it is to rust."
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