Broken battery clamp...please help

went to change my battery, the negative post is lead and came off no problem. The positive is copper/brass and broke once I tried to turn it the first time. For the life of me I cannot get this other bolt undone without further breaking it. I have a lead post clamp to replace the one piece if I can just get it undone. Anybideas? Oh, and I am pretty much a moron when it comes to working on cars. Thanks.

 

Spray is good with WD-40, really let it soak in - see if that'll help you get that nut loose.

 

I have been spraying all day long with WD40. Still won't budge. Afraid I am going to break something if I force it

 

Maybe it would be easier to just replace the whole cable; they're not that expensive.

 

Maybe. Not really sure how to do that. But if I replaced the main cable, that bolt attaches a second cable that runs into the fuse box. So if I replaced one I still need to get that bolt off to reattach the second cable. I appreciate the help, like I said I don't really know much about working on vehicles.

 

Something like this. Had to use one on my son's car.

 

Thanks. Just went and bought one. Now let's hope I don't blow up my Tundra. Thanks for the help yall

 

Hold it with a pair of vice grips and use an impact gun?

 

I had the same issue last year on my car. Getting an extra person to help is great. Have one with a pair of pliers or vice grip and grip the flat metal while the other person using a breaker bar or impact to loosen the nut. Then replace the battery terminal with one of these https://sdhqoffroad.com/products/sdhq-built-hd-billet-main-battery-terminal-upgrade-kit I bought OE positive and negative terminals and the prices weren't cheap.

 

Another option..

https://www.youtube.com/watch?v=F2a8Seirw94

If your truck is anything like my 2014, they isn't much slack in the pos cable to cut it and put a different clamp on it.
Another option would be use solderless connectors and extend the cables.
Not sure what wire gauge you would need.

https://www.amazon.com/WINOMO-Gauge...4+gauge+wire+connectors&qid=1597347797&sr=8-5

Not a fan of TT but this video shows how he extended the cables to mount a non-F battery, has the posts reversed from the OEM battery.
Only posting so you can see how he extended the cables.

https://www.youtube.com/watch?v=F2a8Seirw94


Just get some big shrink wrap and cover all your connections.

https://www.amazon.com/gp/product/B07MW27JNZ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

Dremel with a cutoff wheel.

 

Even easier.

 

to answer the question at hand , WD 40 will help loosen it. if that doesn't work a impact and vice grips , or the best one is heat from a small torch heat the nut. being conscious of were your flame is directed. by heating up the nut it will expand making it easier to come off.

a pro tip when dealing with stuck nuts or bolts is to use lube and slightly tighten and un-tighten back and forth breaking it free and it will preserve the threads.

i never recommend cutting OEM wire's do to a potential fail or electrical gremlin that can develop.

im eventually upgrading to a bus bar system over a standard post set do to a 2nd accessory fuse box and large electrical demand of my set up.