Re: any good info on 3500-hd trucks ?
That combo is rare, even for a 3500HD...
There is a dude on GMT400 that is kind of a guru on these. Other than that, I haven't seen much info out there.
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1999 GMC Suburban K2500 SLT, 454/4L80E
1991 Z/28, 6.0L/T56
1949 GMC 250, S10 Frame, 6.0L/4L80E
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