Douglas A-1J Skyraider Colour Help!?

Hi,

Just got the USAF version of the above kit in 1/48,looking at photo’s of builds on the web & comparing them to the kit instructions,it looks to me like the are a few discrepancies in the colour’s used.
Can anyone confirm the correct colours for the undercarraige & wheel wells as well as reccomend any good reference sites,

TIA!
Big.