4.56 Gears Installed

[fco_gonzo]

I went ahead and pulled the trigger and had the Tahoe regeared to 4.56's from the stock 3.73. The process took about 6-7 hours but it seemed like forever just being away from my Hoe. I have driven it less than 100 miles but I noticed the difference as soon as I pulled out of the parking lot. As soon as I pressed the gas the tahoe seem to "jump" lol. It feels very light and super responsive.

I had it done in Tempe, AZ at Desert Rat Off Road same place that did my lift.

Once I'm done with the break in period (500 miles) I'll update everyone. But so far I highly recommend, the guys on the fence, to do it.

 

[rodwar254]

what engine are you running, and what transmission?

 

[fco_gonzo]

Engine 5.3 and tranny is the 4 speed.

 

[Goodinblack]

4.56. Impressive.

MPG going down though.

 

[fco_gonzo]

Thanks for the heads up!

 

[Donnie Yukonie]

Sick hoe

 

[2007tahoe]

4.56. Impressive.

MPG going down though.

Prob not as bad as you think with those massive tires. Now it has a lot less strain on the drive train. Besides if you were worried about mpg, you wouldn't be running 35's.

 

[CrankCase]

The 4.56 is a great choice. I also regeared mine to a 4.56 and from the stock 3.08, the difference is huge. My fuel economy actually went up when going from stock to 4.56, I now get nearly 20mpg on long highway drives, and an easy mid 16 around town.

 

[fco_gonzo]

Sick hoe

Thank You!

---------- Post added at 07:34 AM ---------- Previous post was at 07:31 AM ----------


---------- Post added at 07:34 AM ---------- Previous post was at 07:34 AM ----------

Prob not as bad as you think with those massive tires. Now it has a lot less strain on the drive train. Besides if you were worried about mpg, you wouldn't be running 35's.

Everthing I have read states otherwise (going up not down), beside I'm not looking to get 25 mpg if I hit 15 mpg I'll be happy. I'm currently (before the gears) getting 11-12 mpg.

---------- Post added at 07:36 AM ---------- Previous post was at 07:34 AM ----------

The 4.56 is a great choice. I also regeared mine to a 4.56 and from the stock 3.08, the difference is huge. My fuel economy actually went up when going from stock to 4.56, I now get nearly 20mpg on long highway drives, and an easy mid 16 around town.

I read that in one of your other post, I'll be stoked if I get 20 mpg!!!

I'm getting my speedometer recalibrated in a couple hours, I'm currenlty off by 15 mph, so I'll be able to get real number in a bit.

 

[CrankCase]

Not sure you will be able to hit 20mpg with a 4speed trans. Mine has the 6 speed, so the top gear is well suited for highway driving. Be sure to reset your MPG monitor on the dash (if yours has it), itll take a tank or two for the computer to catch up. At least mine did.

 

[fco_gonzo]

Not sure you will be able to hit 20mpg with a 4speed trans. Mine has the 6 speed, so the top gear is well suited for highway driving. Be sure to reset your MPG monitor on the dash (if yours has it), itll take a tank or two for the computer to catch up. At least mine did.

Im aware of it, but just wishful thinking, lol!!

 

[Zed 71]

Nice!

 

[rodwar254]

how are you liking the upgrade so far?

 

[fco_gonzo]

Still in the break in period, but so far I can't complain. I should've done a while back.

 

[rodwar254]

where did you order your gears from? interested in doing this

 

[Drippin Wett]

Hey guys new to the site. This is an upgrade I really want to do also. I just bought a 2003 with a 6" and 35's. I'm gonna guess this is hardly a DIY. If you don't mind me asking what kind of money would I be looking at to do both front and rear gears. I'm also wanting to get the Black Bear tune.

 

[fco_gonzo]

I went through desert rat , it's an off road shop, they worked out the details. Paid about $1300, and it took them about 6/7 hours. Still no complaints, should have done this earlier.

 

[Zed 71]

I went through desert rat , it's an off road shop, they worked out the details. Paid about $1300, and it took them about 6/7 hours. Still no complaints, should have done this earlier.

Was that $1300 for front and rear (parts and labor)? If so that is a good price. Based on some threads most were charging ~$800 per axle.

 

[Blazed]

I was told 1300 from a shop around me.

---------- Post added at 12:38 PM ---------- Previous post was at 12:38 PM ----------

Another member said it cost him 1200 at the dealer.

 

[fco_gonzo]

$1300 out the door. I went to a shop that has done many of these swaps, I didn't want to risk it with a tech at the dealership who is learning with my car. Do your homework before committing.

---------- Post added at 09:48 AM ---------- Previous post was at 09:45 AM ----------

About a year ago I was quoted $1150 from the same shop, I could have haggled them down but I didn't feel I was getting screwed cosindering 4wheel parts was asking close to 1500.