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Catfish Craig
Dodge Dakota
JOIN HERE
2/12/2006
20:47:01
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 Subject: 4.56 Gears Finished!
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I finished the install Saturday. Now I can cruse at 70mph at about 24-2500 rpm in OD. I can't wait until they are broke in. The low end feels like it will even smoke the mudders. I'll know after the 500 mile break in. This is the best mod I have done so far! I actually would recommend it first. The difference makes even a stock engine come alive.
2002 4.7 QC AWD, Super Chips, 3"PA, K&N FIPK, 285/75/15 Dunlop Mud Rovers.
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ID 4x4
GenIII
2/12/2006
23:22:24
|  RE: 4.56 Gears Finished!
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Congrats!, and enjoy. They are fun.
01 cc 4.7 5-speed 4x4, Rancho lift,4:56 LSD, MBRP exhaust, Superchips
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95V6
GenII
2/13/2006
02:45:52
| RE: 4.56 Gears Finished!
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How you'd recalibrated the speedometer? I changed to 4.10 and it was 10-15mph off. With 4.56 it should be even more.
95 3.9L 4WD V6, K&N, Gibson exh, JBA hdrs, JET stage II, MSD 6A, Rancho shocks , Transgo kit, 4.10 LSD, F&B 48mm TB
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daveshotdako
GenIII
2/13/2006
12:55:27
| RE: 4.56 Gears Finished!
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with the superchips tuner, you can adjust your speedo. the only problem is is that it askes for tire size not gears. but if you can figure out the difference in gearing and relate it to the "tire size" then you could recalibrate the speedo.
GET IN, SIT DOWN, SHUTUP, AND HOLD ON
custom 48mm tb, tps @ .768, relocated IAT, 180 t-stat, autolite double platinum, accell 8mm wires, flowmaster 40 delta flow single in/dual out, CAI, superchips tuner
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toolfan
GenIII
2/13/2006
13:31:07
|  RE: 4.56 Gears Finished!
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i have 28in tall tires on my truck with 3.55s. i think it lowed my gearing a good bit but not sure what to. when cousin at 70mph i'm at 2150rpm before i was at 1900rpm. do you think i lowered my gear to say 3.73s or 3.90s?
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Kowalski
GenIII
2/13/2006
16:34:56
| RE: 4.56 Gears Finished!
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95V6 - there is no need to recalibrate for a gear change with the newer trucks; the speedo is driven off a tone ring in the rear - not off the tranny.
Lead, follow, or get out of the way
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GraphiteDak
GenIII
2/13/2006
18:57:07
| RE: 4.56 Gears Finished!
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Yup what Kowalski said.
Only need to recalibrate for tire size changes.
The 4.56 gears are one of the best mods you can do for the money.
With my 29's (stock height) I'm not that bad in the RPM's at 65 to 70. Right where I need to be when towing and all. The only thing i may need to change is swapping my dual glass packs for flowmasters. Kind of loud in the cab. I like it. the wife don't.
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Worthit
Dodge Dakota
JOIN HERE
2/13/2006
20:55:33
| RE: 4.56 Gears Finished!
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Is it worth to pay to have them installed or is it worth the labor to do it yourself?
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Dark Jedi
Dodge Dakota
JOIN HERE
2/13/2006
21:28:05
| RE: 4.56 Gears Finished!
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if you dont know how to do it. its better to let someone do it for you. if I remember you need to take both wheels off and when you unbolt everything in the pumpkin you need to slide the axle shafts out some. to get the gears out and in. also something about shims and so on. graphitedak I think has a write up from when he did his 4.56 gear swaps.
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GraphiteDak
GenIII
2/13/2006
23:56:04
| RE: 4.56 Gears Finished!
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The best write up is on Randy's Ring and Pinion.
http://www.ring-pinion.com/content/technicalhelp/default.asp?pid=69
But I did take pix as always available on my web.
The only reason you have to remove the wheels is IF you have disc brakes like mine. Then the disc brakes stops the shaft from sliding out.
With drum brakes you can simply leave the wheels on as the drum will pop off of the shoes once past the lip on the drums. Depending on wear.
You will need an impact capable of ~500 Ft Lbs to crush the sruch sleave. And if you do it yourself, learn from my mistake. Order the FULL INSTALLATION KIT as Autozone/checker etc do NOT have these bearings even if they THINK they do. They are wrong. I had to order form the dealer.
It's all worth it and it's quite the experience compared to any other job you may tackle on your Dak :)
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The Purple1
DakotaEnthusiast
2/14/2006
01:55:37
|  RE: 4.56 Gears Finished!
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Kowalski:
Isn't the tone ring on the rear differential only for ABS function? I think that the speedo signal still comes from the VSS on the driver's side of the transmission...
Either way; I wouldn't think you'd have to recalibrate for ring and pinion swaps: just for tire size changes-- right or wrong?
What do others think?
360 Air Intakez, 52 MM Holley Billet, Ported, Hughes Plenum Plate, Perma Cool Fan, Jacobs Pro Street, Moroso Ultra 40, Bosch 4, Superchips, TPS, CPS, IAT Mods, Dynomax Ultra Flo, Transgo, SLT Trim, Diamond Heads & Corners, Clear Tails, Hood Pins, APC White Gauge, PML Polished Trans & Diff Covers
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95V6
GenII
2/14/2006
03:06:51
| RE: 4.56 Gears Finished!
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Yes, Kowalski, you're right, I remember now seeing this in some thread before - new trucks do not need to recalibrate. I had to buy jet speedo calibrating module for my gears and I'm still tweaking it trying to get the right correction. It's not very user friendly.
95 3.9L 4WD V6, K&N, Gibson exh, JBA hdrs, JET stage II, MSD 6A, Rancho shocks , Transgo kit, 4.10 LSD, F&B 48mm TB
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Kowalski
GenIII
2/14/2006
16:29:27
| RE: 4.56 Gears Finished!
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Purple 1 - if the signal came off the tranny (it doesn't) like the older trucks, you'd have to recalibrate like 95V6. A gear change would affect that in the same way as a tire height change.
Lead, follow, or get out of the way
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