easy job to do yourself ...but it helps if you have two people for the back belts.
front belts you can do in 10 mins
Back belts providing the bolts and nuts are not rusted up and the rear seat belt holes are there about 10-15 mins it pays to put some wd40 or similar on the threads to help undo the nuts.
But if all good the front belts just undo the bolts off the old belts put the new belts ,new bolts and spring washer back on .
On my 65 for the rear belts I took off the rear wheels to access the side seat belt bolts a bit easier.
Have someone under the car hold the nut while you turn the bolt inside the car or vise versa
When putting on the seat belt rears you put the bolt through the seat belt plate then underneath the car have your assistant place the large washer 1st... then a spring washer ....tighten up and you are done.
