guys its onething after another....the other night i was driving home and i relized that as i went around a right turn or went over a bump that my volt meter would go down and the lights would go dim...it does the same thing that my turbo does if you read the other forums about that....any clues about this guys????
thanks
-michael

Do the battery mod and repair all your grounds. You can find all this information in the FAQ section.

These rigs are "Notorious" for bad or almost bad electrical connections........that being said, with your problem only happening when turning or hitting a bump you could "Probably" find a bad ground.
Also there are quite a few, check faqs for locations.
Get some wrenches and a new wire brush and remove, clean and reinstall.......just looking at them doesn't work.

As everybody said, check the ground, take it out, clean it.
Check the cable condition on the positives for corrosion or sign of corrosion, change it if in doubt.
Also check the alternator.

ok i will...the alternator is brand new so that shouldent be a problem....also today i just installed the boost sensor and when i plug it in the truck will not start but when its unplugged (like it was before) it fires right up..... possible short?

Use a dremel tool with a nice wire wheel to clean everything. make um nice and shiny then put some di-electric grease on them. the posts and terminals.