Ground issue or Starter issue

[Ghernandez66]

I recently replaced my starter for a small hi torque starter due to the headers being too close to it and I was trying to avoid frying it with the heat.
once I replaced it the truck started just fine but yesterday I went to try to start it again and it only clicked once and I lost all power to truck no no lights at all (66 chevy pick up with 350 in it) So I checked all my fuses and they were good I checked voltage in the battery and I had 13.3 V but here is where the issue gets weird I have power from the battery to the horn relay but when i check it with the ground from the battery when I check it from the ground in the block or frame I get nothing?
I checked all my ground straps and they seem to be ok and tight I have 3
1- Battery to Alternator bracket
2- Block to frame
3-frame to cab
So once I checked them I unpluged the ground from the battery post put it back and tighten it and I got power back to the truck all lights were working and ground at the frame was good again but as soon as I tried to start the truck same thing happened one click and lost all ground ...

Has anybody experienced this or has any idea what can be wrong or what to test ?
friend of mine said it was my main ground strap from the battery to alternator bracket so I will replace it since it looks old not sure if that can be it or is it the starter causing this ?
I never had this issue till I installed the new starter but it worked fine rite after i installed it ...

Please hand thanks in advance

[T and S]

Sounds like your ground post on your battery may be toast. If you have another battery try that and see what happens.

[Ghernandez66]

Originally Posted by T and S

Sounds like your ground post on your battery may be toast. If you have another battery try that and see what happens.

This battery is maybe 6 months old but any idea what can cause this? I don't want to trow another battery and burn it first try.

[_Ogre]

I checked all my ground straps and they seem to be ok and tight

take all connections apart, clean them and reassemble with star washers
pull the cables out and visually inspect them too or just replace them
they are 50 years old

i'm way past that, but i still need some occasional maintenance and cleaning

[Ghernandez66]

Originally Posted by _Ogre

take all connections apart, clean them and reassemble with star washers
pull the cables out and visually inspect them too or just replace them
they are 50 years old

i'm way past that, but i still need some occasional maintenance and cleaning

Thanks I did exactly that I just replaced the 2 straps from battery to block and from block to frame the third one is new as well so yeah ground wire dint seem bad but had a couple places where it was cracked not sure if that was causing it or maybe a bad end connection but that fixed it truck is back to life.. thanks guys

[_Ogre]

glad we could help

[Wrenchbender Ret]

You keep mentioning ground cables. What about the pos. cable? Corosion can build up between the bat term. & cable end. It might be a loose connection where it hooks to the starter.

[Ghernandez66]

Originally Posted by Wrenchbender Ret

You keep mentioning ground cables. What about the pos. cable? Corosion can build up between the bat term. & cable end. It might be a loose connection where it hooks to the starter.

The problem was that I was losing ground at the frame and cab
That's why everyone mentioned ground cables. I did as well changed the battery terminals and installed a new starter so connection were clean and tight.