You may want to try some of these links to the relative thread....
http://www.chevyavalanchefanclub.com/cafcna/index.php?board=20;action=display;threadid=9485;start=msg134823#msg134823
http://www.chevyavalanchefanclub.com/cafcna/index.php?board=20;action=display;threadid=9375;start=msg133037#msg133037
http://www.chevyavalanchefanclub.com/cafcna/index.php?board=20;action=display;threadid=8959;start=msg127407#msg127407
http://www.chevyavalanchefanclub.com/cafcna/index.php?board=16;action=display;threadid=5728
http://www.chevyavalanchefanclub.com/cafcna/index.php?board=20;action=display;threadid=13853
http://www.chevyavalanchefanclub.com/cafcna/index.php?board=20;action=display;threadid=8868
As you can see there is a lot of information on this subject already, please post your questions in the thread you think best suits you... and continue the discussion there,
Thanks,
Skidd