This is one of my "I've been giving this some thought" posts.
Back in the day we used to power brake a lot. For those unfamiliar with the term you held your foot on the brakes and over-rode them with the gas pedal. The front brakes usually held well since they did 70% or more of the braking anyway.
Once front disc brakes came out, it was even easier because they held better than drum brakes anyway.
But damage to the rear brakes and drive-line were frequent results of playing just a tad to much.
One item we used to use was a line lock. Again, for those that are not familiar with it, you mount the switch on your steering wheel and there is a solenoid valve mounted in your front brake line. You step on the brakes, push and hold the button and release your foot off the brakes. This keeps the front wheels locked and the back ones are free to spin. This kept the damage down if not eliminated it.
Now a lot of our trucks have 4 wheel disc so smoking the tires can get a little tricky; even after we defeat the traction control, torque management system, and the rev limiter.
I see a lot of folks talk about either spinning/smoking their rear tires or wanting to do it on the later model Rams. But I don't see much if any discussion on the use of line locks.
So, I'm wondering a few things.
1. Do folks still use line locks? If not, why not?
2. What kind of damage is being done to the rear drive line and brakes etc from power braking? Disc brakes are not as easy to over-power as drum brakes.
3. Lastly, can the line locks even be used with the new computerized everything including ABS?