anyone running 4.88 gears with 33" or 35" tires ?

[383 silverado]

if so how much of a difference did you notice from your stock ratio and what was it. ( the ratio ) ?

i currently have 4.10 stock on 35"s

[383 silverado]

anyone ?

[2006dmax]

4.88's with 35's here. Had 3.73 and 265's. Truck has more git up and go now than it did stock.

[Chevyman247]

383 Stroker, I havent seen you in here in a long time.

[383 silverado]

383 Stroker, I havent seen you in here in a long time.

ya i split up with my chic and quit messing with my truck.
but anyways i back and im about to do the 411 pcm swap and a set of 4.88 gears.


4.88's with 35's here. Had 3.73 and 265's. Truck has more git up and go now than it did stock.


ya i figured that going from 4.10 to 4.88 is a 19 % increase in gear, so that would make a big difference !

also found this

http://www.4lo.com/calc/geartable.htm

[2006dmax]

http://www.4lo.com/calc/geartable.htm that is what i used to make my decision on gears.It was dead on.
I just have the 4.8, I couldnt imagine the same setup with a 383.....have fun

[trent steel]

http://www.4lo.com/calc/geartable.htm that is what i used to make my decision on gears.It was dead on.
I just have the 4.8, I couldnt imagine the same setup with a 383.....have fun

What are you getting for MPG? Did you notice an increase/decrease with the 4.8's?

[2006dmax]

Around town was pathetic power/mileage, w/3.73 mileage was about 8-9 highway was 11-12. with the 4.88's now I am getting 12 around town and 15+ on the expressway. depends on speed. I have managed 17 at 60-5 mph.

First hint of the littlle 4.8 giving up I will be going 6.0. Unfortunatly with only 85000 miles, I believe the 4.8 has quite a ways to go......................

[383 silverado]

that sounds good to me cant wait to do the swap.

can you imagine what this guys mpg is?
nissan titan on 46" baja claws

click on the black screen
http://i186.photobucket.com/albums/x196/383silverado_photos/th_xxxtitan.jpg (http://s186.photobucket.com/albums/x196/383silverado_photos/?action=view&current=xxxtitan.flv)

[=Lawrence=]

on that chart it says 4.11, are there 4.11's? I thought it was 4.10?

[383 silverado]

on that chart it says 4.11, are there 4.11's? I thought it was 4.10?


yes they do exist.

[AmericanZ71]

wouldn't 4.56 gears be more suitable for 35"? i would put 4.88 on like 37".

[tylerj]

I have 4.88 on a 30" tall tire and it was a huge difference, its good as long as u dont travel. On the highway im about 3500 at about 85.

[AmericanZ71]

I have 4.88 on a 30" tall tire and it was a huge difference, its good as long as u dont travel. On the highway im about 3500 at about 85.

that is f*cking terrible

[oldred95]

4.10s, 35's that measure more like 34 and a 383 should be a pretty good setup IMO. I wouldn't go any lower then 4.56's but thats just me. I guess it depends on what the use of the truck will be. Just seems to me like if you plan on driving it on the highway any it will be turning unecessary rpms.

[S/C Z71]

IMO 4.88's are perfect for 35's.

[2006dmax]

About 2300 rpm at 70 mph. link below was the discussion about gears when I was deciding....I almost went 4.56's, Glad I went 4.88. Never regretted it. But keep in mind I am talking 4.8. It likes the rpm's. Bigger eng./more torque, probably wouldnt need that steep..I still say 4.88 with a 35" tire:rocking:


http://www.fullsizechevy.com/forums/general-discussion/offroad/309721-4-56-4-88-what-do-what-do.html

[383 silverado]

IMO 4.88's are perfect for 35's.


i think that your right i also read that 4.88 were especaily made for 33" and 35" tires.

By: Randy L. Wheeler - 7/2000
Photos by Author and Vance Anderson


Superior's new 4.88 Ring & Pinion
Superior Axle & Gear has been working feverishly over the past year to get these gears out of the design stage and into production. The long awaited 4.88 gears from Superior Axle & Gear have finally __LongTerm__ The 4.88 gears are currently available for the AMC Model 20, Dana 30 (standard and reverse cut), as well as the Dana __LongTerm__ Up until now, the lowest gear set available for the Dana 35 was the 4.56. The new 4.88 gears should fill the need for those of us looking for something lower (numerically higher) than the standard 4.56 gear __LongTerm__ new gears were developed specifically for those of us running 33 or 35-inch tires and __LongTerm__ According to Ron Stobaugh at Superior Axle & Gear, they just got back from pre-running the Baja 500 race course in 2 Jeep TJ's, each equipped with 6 cylinder engines. One Jeep was equipped with only the new Super 35 Detroit kit, and the other Jeep was equipped with 35-inch tires, 4.88 gears and a Super 35 Detroit kit. Ron plans to take these same Jeeps on the Rubicon for the Jeepers Jamboree, then to Sierra Trek, and finally to Moab. They are not going to trailer these Jeeps to these events, they are going to be driving them. If this isn't a real life torture test, I don't know what is.


http://www.4x4wire.com/jeep/reviews/488/