2007-2012 Toyota Tundra Big 3 Log

[drockstar 10+ year member]

Since I searched on this forum and did not find it, here's a how-to for the 2007-2012 Toyota Tundra Big 3.

 

Note* My truck is a 4x4 so the pics may be a little different than yours. Also, my tundra has the front sway-bar removed.

 

Tools used:

10mm, 12mm sockets and ratchet, wire cutters

66" Battery to alternator cable

35" Battery to chassis cable

15" Block to chassis cable

Few zip ties

 

Here ya go:

Thanks for viewing, I hope it helps.

Click to read more...

 

[chargdbassbuick 10+ year member]

very nice , job well done!

 

[07denali 10+ year member]

Nice job. What kind of battery is that?

 

[drockstar 10+ year member]

That's just a plain wal-mart marine battery. I have an Optima yellow top and 3 Batcap 2000s for my new install.

 

[drockstar 10+ year member]

Thank you, I wish the pictures didn't flip all crazy like they did.

 

[keep_hope_alive Premium Member]

overall, good job. a few comments.

1. when you sand away paint in an engine bay you will get rust there. it is best to mask off an area the size of the wire terminal to minimize unpainted area. then use an electrical connection grease or silicone to cover the connection area so you don't get rust.

2. split loom will help add protection to the wires while also maintaining an OEM look. i loom every wire in an engine bay.

3. the alt positive wire is not fused in your install. note that is a hazard since the alt positive terminal is unprotected. if one metal tool/wrench touches that terminal by accident, the battery will see a short (with very little resistance) which can lead to the battery quickly rupturing. at a minimum, you should get an insulated cover for the alt positive terminal and connector.

 

[drockstar 10+ year member]

Thanks. I'll go back and add the loom and grease. As for number 3, I put the protective cap back on and even zip tied it in place. Since the factory wire wasn't fused I didn't opt to do it but I almost did. I have an extra block, you think I should add one even though the alternator nut is not exposed?

 

[keep_hope_alive Premium Member]

i fused my alt to batt positive. better safe than sorry. i don't want battery acid in my engine bay. i know i will be safe but i can't say that for a mechanic at my dealership. even still, i've dropped a wrench or socket before and been glad i didn't have exposed positive terminals.

 

[drockstar 10+ year member]

I here ya!! Well, I almost did it but the Big 3 sticky said it was optional. I think I'll go back and add one.

 

[SplAffair 10+ year member]

The Text is kinda Hard to read, But other than that Nice

 

[drockstar 10+ year member]

The Text is kinda Hard to read, But other than that Nice

Yea I know. And I took my time editing each picture. When I posted them on here they looked like that, small text and some upside down...sorry.

 

[SplAffair 10+ year member]

Yea I know. And I took my time editing each picture. When I posted them on here they looked like that, small text and some upside down...sorry.

lol just making sure you saw it.. im 21 and its hard on my eyes lol.