the 7.4L aka Vortec 454 was available untill 00. I had a 99 and 96. If you get a 96 or 97 there one year only versions of the 4L80E. they are not cheap to fox. The 98 or 99 even 2000 you can fix cheap. The 96 or 97 cost double. Injector issues were common. hard starting when hot. But there are several easy fairly cheap fixes. On those 7.4L vortec make em run cool. The computer retards timing like mad when warm. fullsizechevy.com has a huge thread dedicated to these trucks.
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08 GMC C-4500 w/Custom bed. 8.1L
45ft 2007 Teton Reliance Experience XT-4
TSLB Trailer Saver w/ 3rd airbag
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