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LOW COG suspension setup tricks/tips (REVISED 9-24-12)
#241
MJ>XJ
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Year: 1990
Model: Comanche
Engine: 4.0 I6
I probly didn't make sense but that's how I see it... lol
#242
Former Sponsor
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Year: 2000
Model: Cherokee
Engine: 4.0
Not sure I agree actually... The way I see it the tires will spin at whatever force is needed to spin them... A crawl box would allow a higher engine rpm to turn at at lower speed but that's it... The force to spin the tires is always the same... not making anything harder on the driveline... now I guess if your tires are in a locked up not moving position then it would be more force on components since the other end is froze... but since tires almost always spin that shouldn't be a problem...
I probly didn't make sense but that's how I see it... lol
#243
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Year: 2000
Model: Cherokee
Engine: 4.0
Breaking bolts loose.
Stock gears and over size tires = little stubby wrench.
Crawl box/doubler = 2' breaker bar.
Which is easier to break things with?
You go slower with the breaker bar, but you apply more force.
Stock gears and over size tires = little stubby wrench.
Crawl box/doubler = 2' breaker bar.
Which is easier to break things with?
You go slower with the breaker bar, but you apply more force.
#246
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Year: 92
Model: Cherokee
Engine: 4.0
Hammering down is irrelevant. Always easier on parts to idle through instead of flooring it.
With the same throttle input , more torque is applied to the r&p and the shafts when in the lower tcase gearing range
With the same throttle input , more torque is applied to the r&p and the shafts when in the lower tcase gearing range
#247
Senior Member
#249
Senior Member
I know this. I'm saying wouldn't t case gearing be easier than all axle gearing?
4:10s in a dana 30 w/ c box, compared to 4.88 and 2.72:1?
4:10s in a dana 30 w/ c box, compared to 4.88 and 2.72:1?
#251
Senior Member
Wouldn't it be easier on the ring and pinion with the crawl box than the 4.88 do to their being more teeth on the pinion?
#252
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Year: 92
Model: Cherokee
Engine: 4.0
Although, theoretically 4.10 would have an easier time surviving a crawlbox than a 4.88, atleast teeth wise.
#253
Senior Member
Dana 30s are weird.
#254
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Year: 2000
Model: Cherokee
Engine: 4.0
Lower T-case gearing will put more load on everything. Shafts, R&P axle shafts etc. Axle gearing puts more load on axle shafts.
From 4.56-4.88 looses a pinion tooth. This is where the perception of the weaker gear set comes in with the 4.88's. IMOP the ring gear will break before the pinion tooth if setup properly either way.
Im not following the analogy of the locknut and no wrench.
I guess in relation to load? Which is the only variable on the drivetrain. If you were able to only apply the same load with deeper t case gears as without than you would never really apply more force. But this isnt really possible. The problem is that you cant tell. It feels great and crawls and you have no idea that there is a TON of force on everything. Then it slows down, and you give it a little more throttle, maybe with stock gears it would be bound up, but there is no way to tell, so you throttle a little more, then snap. Stuff is broken.
The reason you can "crawl" stuff, and idle over stuff is because you are generating more force than with lower gears and more throttle input.
So in most situations, you are applying more force to everything that you normally would.
From 4.56-4.88 looses a pinion tooth. This is where the perception of the weaker gear set comes in with the 4.88's. IMOP the ring gear will break before the pinion tooth if setup properly either way.
Im not following the analogy of the locknut and no wrench.
I guess in relation to load? Which is the only variable on the drivetrain. If you were able to only apply the same load with deeper t case gears as without than you would never really apply more force. But this isnt really possible. The problem is that you cant tell. It feels great and crawls and you have no idea that there is a TON of force on everything. Then it slows down, and you give it a little more throttle, maybe with stock gears it would be bound up, but there is no way to tell, so you throttle a little more, then snap. Stuff is broken.
The reason you can "crawl" stuff, and idle over stuff is because you are generating more force than with lower gears and more throttle input.
So in most situations, you are applying more force to everything that you normally would.