|08-21-2013 08:56 AM|
|08-21-2013 08:17 AM|
The combination of 4Lo and a low axle ratio boosts the amount of torque being sent to the axles so much that the brakes have a hard time stopping a Jeep, it's a common issue... especially when you also have an automatic transmission which increases the amount of torque even more.
The only solution is a more powerful set of brakes like the Big Brake kit from powerbrakes hydroboosts vacuum boosters everything for your extreme braking needs that Blaine had a major part in designing.
I drove a TJ last week that was literally unstoppable. It had 5.38 gearing, 4:1 Rubicon t-case, and the RubiCrawler from Advance Adapters at RubiCrawler | Advance Adapters I tried it in 4Lo and I literally couldn't stop it, I had to shift into Neutral to get it to stop. The RubicCrawler adds another extra-low gear option that provides an additional 2.72 (or optionally 4:1 or 10.88:1) behind the transmission that more than doubles the Crawl Ratio.
|08-21-2013 08:04 AM|
|08-21-2013 07:14 AM|
|Rubi513||Have you upgraded to the black magic pads? Just curious if this helped at all.|
|08-19-2013 09:38 PM|
|Gunner||I have 4.88's. But i'm not sure it is a brake rotor/caliper problem as opposed to say a Master cyl booster.|
|08-19-2013 09:08 PM|
|Rubi513||I have the same problem. It wasn't too bad with the original 4.10 gears but after I went to 5.13 gears the problem magnified. I need to go ahead and get the vanco brake kit|
|08-19-2013 09:01 PM|
Off Road Brake problem.
OK here's my situation. First I have talked with Blaine about my brakes on the street. It stop's great. And if I hit them hard it will howl the tires. But what I am having a problem with is in 4 low with the 4 to 1 box, I routinely have trouble holding sufficient pedal pressure in reverse and sometimes in forward when dropping off rocks. In 2 wd it's not a problem. I hope he jumps on this but I wanted to see if anyone else had the same problem. I don't have a Vac gage on it so I can't tell you what the booster is seeing. Idle speed is pretty consistent. Per Blaine I had already had the system flushed with the correct brake fluid and it made a big difference on the street. Could trail dust on the rotors have something to do with it?
Feel free to weigh in.