New guy with a few questions

2006 Toyota Tacoma TRD Sport 4X2 1GRFE no mods XSP package

Question 1 - Hood flexing at high speeds:
I have the TRD Sport with the hood that has the fake scoop and when I get over 60 mph, I can see my hood bouncing up and down slightly. The faster I go, the more it does it. It may not be bouncing, but more of a flexing. I have adjusted the rubber stops but it didn't seem to eliminate this. Is this normal?

Question 2 - Clicking from rear when applying brakes:
I have been hearing this for a while. At the same instance that I push the brake pedal I will hear a click or slap from the rear end, not real loud, can hear it well at low speeds when leaving neighborhood. It will not do it again once it has occurred until I go over a slight bump or rise in the road and then it will do it again when I tap the brakes again. Is this the rear springs or maybe a brake issue. Maybe nothing??

Question 3 - Rear Differential Oil:
Had the Texaco Lube place change my rear diff oil cause I was at 35,000 miles and figured I better do it. They claim their oil has the LSD additive, should I add some anyway? I think I feel a slip when I back down the driveway sometimes, or maybe it is in my head.

Thanks for all the info. I should have been on here from day one.

 

Thanks for the info. Your truck looks awesome. I am thinking about putting a lift kit on mine. I see you also have the TRD Sport and did a lift kit.