What year is your gmc? If its 99-02 I'm not surprised your havin issues with it. I wasn't untill 2003 when gm figured their shit out with the nbs
__________________
1986 Camaro Iroc z28 305 TPI 700R4
-hooker-edelbrock 1 5/8" shorty headers-1.6 roller rockers-52mm TB-3.23 10 bolt- ...191rwhp/280rwtq...14.97@90.5 2.04 60'
2005 GMC Sierra 2500 LLY Duramax -exhaust-gauges-leveled-wheels-tune-egr delete....339rwhp/637rwtq
|