|07-01-2013 10:31 PM|
|07-01-2013 09:14 PM|
|07-01-2013 09:08 PM|
|bigdogtex||I'm new, and I'm not a mechanic. My new Jeep as 35" wheels and a 4" lift. Do I need to change the gear ratio, and if so can you explain the basics of what that actually means? Also, do I need bigger brakes to handle the bigger tires? Thanks!|
|06-20-2013 02:29 PM|
It may be a rural thing since lower gears have a higher number and "tall" is "high".
It seems like just a decade ago, 4.56 or lower was the entry point to running 33s or 35s, but with all the changes, folks run that on stock 3.73 and 4.10s with no real performance problems.
|06-20-2013 01:58 PM|
|Scott-CJ8||I have heard "taller gears" also in the same context as you are talking about. Funny how the lingo has changed. But I do like the modern talk better, and most folks understand it as well.|
|06-20-2013 11:46 AM|
lingo: A lower gear ratio (higher numerically)
Growing up all the old folks and motor heads talked about "tall gears" and I guess it stuck in my head. I know that mostly this was in the context of off road applications (Scouts, CJs, K5s, Tractors, etc.) and they were talking about "lower" gear ratios. No one around did any street builds, except maybe a few who like to drag race.
But if today I said, "I think you need taller gears for those 37s" people would probably look at me funny.
I found some discussions about the term "taller gears" or "tall gears" that jive with my memories.
The only general consensus was that "taller" should be taken in context, and probably points out the fact someone changed the factory ring and pinion to a lower gear ratio (higher numerically) or in the world of auto-racing it can / often does mean the exact opposite. "Tall gears or gearing produce higher top speeds and have a smaller numeric value."
Then I found a list that had all the terms I had heard before and a few new ones.
Anyway, most of the modern talk just spells out the ratio anyway, so maybe it's a non-issue.