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Discussion Starter · #1 ·
Just wondering, but has anybody regeared to a (lower?) gear like 3.xx. Everyone wants to go (higher?) 4.77 for example, for crawling i assume? But i would like to not be pushing 2500rpm to do 30mph. has anybody done this?
 

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IF you can find them, I THINK you can get 4.10's for these axles. These beasties were really meant for a load & a back country two-track.

The other option is go trade your new shoes for some 31x10.50x15's (or find some 16" alloys & get 215/85/16 or 235/85/16) & a ratio adapter box for your speedo cable (this by the way is WAY less difficult lol). The taller tire will give you the same 'power sapping' feel & lower your cruising RPM's the same way a gear job would.

~psguardian
 

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dryvr12 said:
Just wondering, but has anybody regeared to a (lower?) gear like 3.xx. Everyone wants to go (higher?) 4.77 for example, for crawling i assume? But i would like to not be pushing 2500rpm to do 30mph. has anybody done this?
2500 RPM at 35 mph??? WTF??

I regularly commute 40+ miles each day to work..

Granted, I only drive my Trooper 1/3 of the time to work, thats still at least twice a week at an 80+ mile round trip, usually around 70+ mph the entire time...

I never break 2800-3k rpm, and thats at 75mph.. And thats on a 23 year old truck, with over 223k miles... 2.6 4 banger here, fuel injected, 5 speed, tuned WELL....

What are you running to get those #'s?
b :?:
 

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gearing is kind of *** backwards, 4.77's are lower than 3.83's, higher the number, the lower the gear ratio is.
In all likeness, your trooper probably has 4.56's
there are 4.10's out there, I believe a 2wd 90-94 Amigo has them, and I think alot of the newer stuff would have the front, remember that these 3rd members are removable, which makes this easy.
 

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Discussion Starter · #5 ·
DigitalDrifter said:
dryvr12 said:
Just wondering, but has anybody regeared to a (lower?) gear like 3.xx. Everyone wants to go (higher?) 4.77 for example, for crawling i assume? But i would like to not be pushing 2500rpm to do 30mph. has anybody done this?
2500 RPM at 35 mph??? WTF??

I regularly commute 40+ miles each day to work..

Granted, I only drive my Trooper 1/3 of the time to work, thats still at least twice a week at an 80+ mile round trip, usually around 70+ mph the entire time...

I never break 2800-3k rpm, and thats at 75mph.. And thats on a 23 year old truck, with over 223k miles... 2.6 4 banger here, fuel injected, 5 speed, tuned WELL....

What are you running to get those #'s?
b :?:
Even when i try to drive gentle, it shifts at about 2k rpm. If gotten in up to about 5k just trying to merge :lol:
 

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4.10 or 4.30 ratios are the only higher speed gears available for both differentials. You can accomplish the same thing by using tires with a larger diameter, about 6% larger than you have now for the 4.30's, 12% for the 4.10's (example: 31" tire, 4.56 ratio rpm= 28" tire, 4.10 ratio rpm).
Borrow a couple of larger diameter tires & wheels, go for a test drive- or several with different tire sizes. You can fine-tune until you find your best tire size, then buy a new set that size. You can get the proper tooth speedo cable drive gear to correct the speedo reading from jlemond for about $30.
 

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i asked Jerry one time about putting 4.11s in a trooper for a diesel and he said it can be done, but depending on the year model theres some veryashon as to where you get the gears from.

http://www.isuzupup.com/viewtopic.php?f=16&t=4282
AUTOMATIC TRANS EQUIPPED 88-94 2.6 ENG ONLY PICKUP TRUCK AND GET THE REAR DIFF FROM IT THEY WERE ALL 4.11 WITH THE AUTO TRANS
http://www.isuzupup.com/viewtopic.php?f=19&t=6013
4.10 GEARS FORM THE FRT OF THE LATE RODEO DIFF YEARS HAD THEM DEPENDIGN ON THE TIRES SIZE
 
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