yeah I have 2 batts under the hood and I have the Big 3 running to both and they are linked together with 0/1 and then I have the front batts linked with the one in the cab... Just linking pos to pos and neg to neg direct i went up .5 Volts.. Its kinda amazing how one little thing can help so much.

here are some pics to show you what I've done....:)
http://idisk.mac.com/steve.becskei-P...3/IMG_0175.jpg
http://idisk.mac.com/steve.becskei-P...3/IMG_0176.jpg
http://idisk.mac.com/steve.becskei-P...3/IMG_0177.jpg
http://idisk.mac.com/steve.becskei-P...3/IMG_0178.jpg
http://idisk.mac.com/steve.becskei-P...3/IMG_0179.jpg
http://idisk.mac.com/steve.becskei-P...3/IMG_0180.jpg
http://idisk.mac.com/steve.becskei-P...3/IMG_0181.jpg
http://idisk.mac.com/steve.becskei-P...3/IMG_0182.jpg
http://idisk.mac.com/steve.becskei-P...3/IMG_0183.jpg

Should be good!!:smilie_da You could also take the engine block ground from near the battery right to it instead of the shock tower. Otherwise what you did will work too. Looks like a nice clean "Big 3" to me.

I would change the bolts. Fresh and clean. To me it looked like a ground went aluminum. If so I would try to find a different place to ground. But looks good. Clean runns.