Cruiser blinders are strong here.....
OP states "spent a ton of time already, not remotely close to being ready for the road, don't have time to do this..."
Fj40 cult "keep going!!"
Lol
Ask someone outside of mud if you should keep it.
I'm laughing at another thread started by somebody asking in the fj40 fanatic section if they should keep their fj40 that they aren't having a good time with.
If you're not having a good time, sell it.
Life's too short to deal with BS.
As for what it's worth?
Post it up in the classifieds...
Best way to get drum brakes to work well is to take them off and throw them in the garbage can.
Especially if you think this is a forever rig.
Bite the bullet, do a 4w disc upgrade and enjoy better safer braking and never worry about your brakes again.
That's my opinion at least
Also, front drive shaft angles for a part-time 4-wheel drive vehicle with a two and a half inch lift are not really ever going to be an issue to cause vibrations.
You are not lifting the vehicle so high that you need a double cardon drive shaft, or a cut and turn to point the pinion towards the...
Just get the four degree shims with the springs.
I also think it is odd that they don't come with them already installed, or part of the package.
It leads to confusion like this.
Your pinion and your axis of rotation of the knuckle for caster are fixed to each other unless you do a cut and turn on the axle.
Any rotation of the axle from a lift from just springs, or shackles, affects them both.
Caster is more important to the vehicle, which is why when you lift, you do...
You don't shim the front for driveshaft angle, you do it to fix caster to steer properly after a lift.
Yes, the shims negatively affect driveshaft angles But the trade-off for better steering is worth it and effects on a drive shaft are massively outweighed by correct caster
Whatever those chunks are they have been there for a while as they look like they've been through a rock tumbler.
They could predate the new starter.
But there is nothing that would have that volume of aluminum in that area that I'm aware of besides a starter nose cone