Wiring Harness Plastic Sheathing? Options

[TINKERGINEERING]

Currently working on the wiring harness and found a couple wires in desperate need of replacement but they go through this plastic sheathing on the harness. Has anybody replaced wires through this sheathing? Should I just pull the wires out and try and jam them back in? I was also thinking I could just replace the sheathing, because it is 50 years old now, but how would I put new sheathing back on?
Thanks so much

[technicalninja]

@TINKERGINEERING

This is a message I want your father to read!

If one of my children was doing what your daughter is, I'd DEMAND easy to access kill switches, both internal and external on the car.

I like the pull to engage/push to disengage big buttons, similar to the blade drives on lawnmowers.

The dash unit would be centered to allow activation by either passenger or driver.

The outside unit would be EASY to get to and I'd probably have "rescue" arrow pointing to it much like kill switches on track cars.

Imagine a first responder having to deal with the car. Plan accordingly!

I'd make it EASY to take the drive package all the way down.

I wouldn't allow any "test drives" before the "kills" were operational.

[TINKERGINEERING]

@TINKERGINEERING

This is a message I want your father to read!

If one of my children was doing what your daughter is, I'd DEMAND easy to access kill switches, both internal and external on the car.

I like the pull to engage/push to disengage big buttons, similar to the blade drives on lawnmowers.

The dash unit would be centered to allow activation by either passenger or driver.

The outside unit would be EASY to get to and I'd probably have "rescue" arrow pointing to it much like kill switches on track cars.

Imagine a first responder having to deal with the car. Plan accordingly!

I'd make it EASY to take the drive package all the way down.

I wouldn't allow any "test drives" before the "kills" were operational.

Hey there! Daniel here- Frances shared these posts. Yes Great intel and advice all around. Kill points are a great topic. ALA race disconnect style front an back is a good point.
Frances has teamed up and gone thought the LEGACY EV course for the HV side of things. Correct - completely separate system 2/0 3 phase separate control cabeling and BMS setups.
This current process of just getting in a 12v functioning harness is the job. This one has been hacked a bit so replacing strands with fresh ones and crimped solder and heat shrinked is happening. The rubber / pvc tube shrouds cleaned up nice and see to have a few more miles on them. Just the rubber snorkel need replacing it seems. This was a super confusing task months ago and now the confidence is with her and Frances doesnt want me breathing down her neck - exact words HA
So huge thanks to all of you for taking the time to chime in and lend your lessons learned here. truly
Best
Daniel