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What size are the tires?Should I be able to lock up my tire (or at least activate ABS) by slamming on the brakes? Like driving 45 and jamming both feet in the petal? Brake booster problem? 10 ply tire weight? I bled the brakes today, improved a bit...
Pretty much stock, but 10 ply, so kinda heavyWhat size are the tires?
I did buy a brand new OEM replacement from Toyota. Freaking cost me 45 bucks. I tested it just by putting it on my mouth and blowing and sucking and it seems to be okay. I think there's a valve or something inside of the brake booster. I wonder if it's not actuaiting properlyI just went thru this. Brakes worked OK, but they felt slow to react. Found the vacuum check valve did flow air but it did have noticeable resistance to flow. Compared to a spare valve and found to spare OEM valve worked fine and was very free flowing. Tried to swap in the OEM, but no luck as I have aftermarket booster and the hole is not the same size as OEM. Hmmmmm..... ordered a couple of different aftermarket valves from Amazon till I found the right one. Good fit, 100 % free flow for vacuum and 0% flow the other way. No change in brakes, but pedal response has improved dramatically. Higher, firmer, more consistant. Well worth the work and $. Raybestos CV 89000. About $15.
I put Wilwood manual proportioning valves in both of my 80’s at the same time that I deleted ABS. Much better braking in both trucks now.I swapped the booster with a spare, and I don't really notice much of a difference. Who has experience with swapping out the proportioning valve? did it help your braking much? Maybe oI can try to adjust it...
If you have a write up on the brake system, I would love to go through it. Best of luck.FWIW:
I have one stock 1994 and two stock 1995s. I can lock the brakes on one of the 1995s; the other two have typical mushy 80 series brakes. I bought my first 80 (a 1994) used, with about 30k on when it was about 4 years old. The brakes would put your face on the steering wheel, just like my 1995 (with working brakes). The stock components, when correct, work very well. That said I'm only a couple of weeks into a complete 80 series brake system review and nothing obvious has come to light as of yet, so I can't offer any specific help with your problem, just a thought about where you should expect to wind up.