I mentioned a few weeks back that I’m planning to ditch the ancient single-pot brake master cylinder in my truck. After a lot of research, I went with a complete pre-fabricated kit to get both the dual-pot m/c and an integrated booster, rather than cobbling together stuff that will “probably work” from other years/makes/models. When it comes to brakes, I didn’t want to mess around, especially as my kids love riding in the truck.

Here it is, and it’s BIG. And shiny. But look at what it’s replacing:

The one thing I’ll say about the existing setup is that it doesn’t block access to the engine. Reaching that valve cover with the new setup will be, at minimum, much worse. A small price to pay, I suppose.

I can’t wait to get this installed, I mean, look at the old master cylinder:


And just... yeah. that booster is a strange and mysterious beast, though it seems to work fine.

So here’s a question:

The new booster+m/c kit came with instructions to paint the master cylinder before installation. But, correct me if I’m wrong, doesn’t brake fluid tend to eat paint? (ahem, look at my firewall). So why would I do this before installing it and probably getting at least some brake fluid on the outside, undoing my work? Or, am I overestimating the spillage? Are they overestimating how much this thing will rust?


I’m leaning toward a quick tape-off of the booster and a shot of satin black because why not?

I’ll be sure to post some ‘after’ pictures when the time comes.