<Tr> <Th_colspan="2"> Dimensions </Th> </Tr> <Tr> <Th> Wheelbase </Th> <Td> 130.0 in (3,302 mm) </Td> </Tr> <P> The Chevrolet Avalanche was a four - door, five or six passenger pickup truck sharing GM's long - wheelbase chassis used on the Chevrolet Suburban and Cadillac Escalade ESV . Breaking with a long - standing tradition, the Avalanche was not available as a GMC, but only as a Chevrolet . Production of the Avalanche started in September 2001 and ended April 2013; producing two generations in its lifespan . </P> <Table> <Tr> <Th_colspan="2"> First generation </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> Overview </Th> </Tr> <Tr> <Th> Production </Th> <Td> September 2001 - December 2005 </Td> </Tr> <Tr> <Th_colspan="2"> Body and chassis </Th> </Tr> <Tr> <Th> Platform </Th> <Td> GMT805 </Td> </Tr> <Tr> <Th> Related </Th> <Td> Chevrolet Silverado / GMC Sierra Chevrolet Suburban / GMC Yukon XL Cadillac Escalade ESV Cadillac Escalade EXT </Td> </Tr> <Tr> <Th_colspan="2"> Powertrain </Th> </Tr> <Tr> <Th> Engine </Th> <Td> <Ul> <Li> 5.3 L LM7 V8 (gasoline) </Li> <Li> 5.3 L L59 V8 (gasoline / E85) </Li> <Li> 8.1 L L18 V8 (gasoline) </Li> </Ul> </Td> </Tr> <Tr> <Th> Transmission </Th> <Td> <Ul> <Li> 4 - speed 4L60 - E automatic </Li> <Li> 4 - speed 4L80 - E automatic </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Dimensions </Th> </Tr> <Tr> <Th> Length </Th> <Td> 2002--03: 221.7 in (5,631 mm) 2004--06: 221.6 in (5,629 mm) </Td> </Tr> <Tr> <Th> Width </Th> <Td> 79.8 in (2,027 mm) </Td> </Tr> <Tr> <Th> Height </Th> <Td> 2002--03: 73.3 in (1,862 mm) 2004--06: 73.6 in (1,869 mm) </Td> </Tr> </Table>

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