Skins made for GMC Savana 2500 v1:
http://www.gta4-mods.com/vehicles/gmc-savana-2500-v1-f14439
Skin by SSDD MultiGaming:
youtube.com/SSDDmultigaming

2 files provided, one with me gusta on the bonnet/hood and another with the 4chan logo.

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:::  Install  Notes  :::
::: for the n00bs :) :::
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OpenIV>GTAIV>pc>models>cdimages>vehicles.img

File>Edit Mode

Find the Savana model you installed earlier (Speedo, Burrito, Pony, whatever...)
and open the corresponding WTD file. 

Select savana_sign_1.dds or savana_sign_2.dds from the Left Panel
Click "Replace" From the Top Panel
Find the extracted files from this download.
Import/Replace the skin

Don't FORGET to SAVE!!!

File>Rebuild

DONE

/b/