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Thanks alot. I think I am going to look at some NGK plugs.

Any recommendation on spark plugs for my 1999 GMC and 2002 Suburban? Right now I have ACdelcos in the truck Bosch Platinum +2 in the Suburban (just changed because it was missing so bad, but I think it was the wires). Just wondering if there is anything better out there. Thanks for the help.

Can someone please run this VIN and get the vehicle history for me? 3GNFK16Z52G276471

My ABS light and parking light came on so i took it to the dealer for a quick scan.... Well... They tell me that the EHCU (Electro-Hydraulic Control Unit) is failing. Everything seemed normal after I had tested the truck on a wet road a few months back, but during this last big snow storm we had I could tell the Abs wasn't working at all. I was going about 25 down a neighborhood hill with wet snow on the ground, I had to keep pumping the brakes so I wouldn't spin out! when first hit the fat pedal I heard the slight "growl" coming from the right front hub, but then the wheels locked up solid. And as if all of this wasn't enough, my "Service Engine Soon" popped on when I finally reached the bottom of the hill!

I want to upgrade my 1999 gmc cluster to a 2006 gmc cluster. I just want to know if it can be done.

I was thinking about a lS3 or L92 upgrade, possibly with a blower. I know I will need to upgrade the tranny. Where I live we have a very good GM Performance Parts Center and I am looking at their crate engines. I don't know what I'll do with the LM7.... Probably store it for a rainy day.

My 1999 GMC Z71 Sierra runs fine, great for 161k (its quicker than ever). I am just wondering if anyone has any suggestions on any "go-fast devices". I'm open for any suggestions.

Sorry I will next time and thank you.

For a 99 Z71?

How many quarts of lube does it take to fill up the front and rear diffs?

yeah its a 99 Z71.

Thanks. Do you suggest any visual mods?

just showing off the Sierra.

when the truck is cold, no miss....But as soon as it gets hot miss city. ANY INPUT?

Would I be doing any good deleting my EGR systerm?