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4:56 gear swap - my initial experience

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Old Jul 7, 2006 | 06:35 PM
  #11  
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Default RE: 4:56 gear swap - my initial experience


ORIGINAL: savage25xtreme

to bad when you do get the tires spinning with 20's and LSD the whole *** end of the truck bounces off the ground and knocks your teeth out.....even on dirt my truck does this. feels like the back tires are coming 6 inches off the ground...im waiting to hear my rear end gears rolling down the road.
Traction bars takes care of that wheel hop.
 
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Old Jul 7, 2006 | 06:39 PM
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Default RE: 4:56 gear swap - my initial experience

Do both Front and rear or somthing may granade if you switch to 4WD with different gears front to back
 
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Old Jul 7, 2006 | 10:01 PM
  #13  
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Default RE: 4:56 gear swap - my initial experience

Stumpy - waahoooo! - same plesant experience I had with the 4.56 swap - you will enjoy it and I too am sure my wife will be much more gentle on the happly pedal than I am. I too have the drive train vibration - mine starts at about 80 and gets really bad at 90 - once I got through being chicken s### and drove through the vibration it went away at 95 - but as the TX guy said, it is really a result of different harmonics in the drivetrain with the driveshaft in particular spinning at higher RPM's than before. The gear shop I use here in AZ is going to do a pattern check & change the diff oil at 1,000 miles - I am going to have the driveshaft re-balanced at this time. Fuel mileage wise - during the 200 mi when I broke in the new gears running empty - got about 15.5 - 16 mpg - mostly freeway driving, varying speed from 55-80. Towing the camer - was still in the toilet at about 9 mpg - but it was a much easier job - the truck is back in my wifes hands now & will see what the mileage does - before the swap from 3.55 gears, she was getting about 12-13 mpg running around town.
 
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Old Jul 7, 2006 | 11:38 PM
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Default RE: 4:56 gear swap - my initial experience

My wife has already started rolling her eyes at me - I'm like a kid with a new toy. I could never powerjack the truck before now I hold the brake and let her rip. Tearing the hell out of these asphalt backroads my tax dollars pay for. Yeah, yeah, I know "your going to tear it up" but it's my truck dammit. I pushed it today - vibration at 80 ( I think I said 85 first - typo) gone about 95ish so I know it's not the gears. I'm going to try to go ahead and get mine balanced though or it will bug the crap out of me. I'm going to give it a week then take the camper out on a long grade hill coming out of the bottoms down from my house. If it makes that one w/o screaming, I'll know I'll be ok to tow.....
I noticed today the fuel mileage has not increased with the 5 gallons I put in but that may be a heavy foot/break in issue. We will see as time goes by.
 
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Old Jul 13, 2006 | 05:23 AM
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Default RE: 4:56 gear swap - my initial experience


ORIGINAL: AIR RAM


His name is Jason, he owns Texas Drivetrain Performance.... His phone number is 817 300 6840 ... Dont forget to tell him AIR RAM sent you... He will take care of you...

SPEED SAFE, AIR RAM
He did the rear end in my 04 ram (4.10 + LSD)... bout 3 months later an axle snapped... not sure if there was any connection. Real nice guy though.
 
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Old Jul 13, 2006 | 12:51 PM
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Default RE: 4:56 gear swap - my initial experience

ORIGINAL: frogslinger


ORIGINAL: AIR RAM


His name is Jason, he owns Texas Drivetrain Performance.... His phone number is 817 300 6840 ... Dont forget to tell him AIR RAM sent you... He will take care of you...

SPEED SAFE, AIR RAM
He did the rear end in my 04 ram (4.10 + LSD)... bout 3 months later an axle snapped... not sure if there was any connection. Real nice guy though.
OMG... Man that sucks... was it covered under warranty? What did Jason say about it? I know my stock carrier gave out on me (Clutch pack retaining clips) 650 miles after getting my gears installed... but I know the stock carrier is crap. But the dealership DID cover the carier... but they did not cover the gears tha had been replaced... they installed the stock 3.55's ... so I had to purchase another set of 4.56's and pay to once again have them installed. but I know it wasnt his fault... Did you ever find out what caused the axle to break?


SPEED SAFE, AIR RAM
 
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Old Jul 13, 2006 | 05:49 PM
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Default RE: 4:56 gear swap - my initial experience

I hit a slick patch under power and the rear end of the truck came around. and then hit a dry rough patch and the reaer bounced and then my right rear tire rolled past the left side of my truck.

dodge said that it was because when the rear end was installed the axle was torqued improperly. Of course this is Star dodge of abilene which used to also own a bunch of other franchises (mitsu, lincoln, mercury, toyota, honda, kia) but have lost all of them except dodge and hyundai, so you can imagine their business practices.

The service aganet said I had hit a curb... I was like... ok... I din't and even if i did then you would think this level of vehicle would take that... besides i have 22s and uou would think those would be damaged or at the very leaset there would be seriuos damage to the tire before an axle snaps... and he said no... it is because you hit a curb.

Later that afternoon i had the truck towed to the local chrysler/jeep/ford house. He called me and was all "why will you not let us fix it?" and i said because you called me a liar, and that is unnaceptable. I mean the dealership gets paid either way if they fix the truck... I called dc and they said if the dealer had said it was warranty they would have warrantied it no questions.

jeep said they could not warranty it cause it had already been declined.

ended up paying my insurance company deductable to have them fix it.

I never contacted jason about it.
 
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Old Jul 13, 2006 | 05:49 PM
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Default RE: 4:56 gear swap - my initial experience

I'm curious about the axle breaking myself. Never heard of one just breaking for no reson. Was there any others factors involved? Ovesize wheels/tires? Overloaded? Getting crazy on the skinny pedal?
 
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Old Jul 13, 2006 | 07:08 PM
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Default RE: 4:56 gear swap - my initial experience

how much do poeple normally pay to have 4:56 gears installed in the 4x4s? i really want them, but have a 4x4 and most of the shops around here wont touch it
 
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Old Jul 14, 2006 | 05:31 AM
  #20  
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Default RE: 4:56 gear swap - my initial experience

I was running 22s with 295/45/22 tires... heavier than stock 17s but not much more than stock 20's... I was sliding and it caught traction suddenly on some rutted pavement (not severe... just lots of delivery trucks drive through that area and they have beaten up the pavement a little)... still not something that should break an axle i would not think.
 
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