25 posts - 9 authors - Last post: Jan 9, 2010Cops, ha, catch me if you can! gonzo6869's Avatar. Join Date: Jun 2009. Location: Santa Barbara, CA. Posts: 271. Re: 3.08's or 3.42's .

Dec 23, 2010 – Discuss towing and trailers and plows, or overdrive and hitch towing . But, GM seems to have restricted the gear ratio's to the 3.08 and 3.42's. .

37 posts - 21 authors - Last post: Nov 28, 2009[Archive] 3.08, 3.42 or 3.73 posi..?? Transmission & Driveline Topics.

7 posts - 4 authors - Last post: Aug 6, 20083.08 vs 3.42 - Discuss Chevy, Drivetrain, and Chevrolet Tech topics in the Chevy forums at Chevy High Performance Magazine.

13 posts - 12 authors - Last post: Aug 24, 2008[Archive] Opinions on 3.08 vs 3.23 vs 3.42 rear ratios? Got gears?

2 answers - Aug 19, 2010Looking to buy 2010 Silverado crew 5.3L 6 speed, with either a 3.08 . lower gear ratio = lower rpms on top end = less gas consumed. .

7 posts - 3 authors - Last post: Aug 4, 2010I can't imagine how bad the 3.08 would be. Or am I wrong . You'll think better of the 3.08 gears. I got 3.42 . Still would prefer 3.73 or even 3.42. .

8 posts - 7 authors - Last post: Jul 11Is it possible that you are loading all your gear in the front or back . I dont have the window sticker, the rear end is a 3.42 locking differental. .

9 posts - 5 authors - Last post: Aug 4I was wondering what the difference is between a 3.08 rear axle ratio and a 3.42 rear axle ratio on an GMC Sierra with the 5.3 engine and 6 .

40 posts - 21 authors - Last post: Apr 10Going to buy a 2011 Silverado and was curious what gearing is better for highway MPG for 5.3L? 3.42 or 3.08? I may never tow anything, .

20+ items – The engines are paired up with either four-speed automatic or .

13 posts - 12 authors - Last post: Aug 24, 2008Opinions on 3.08 vs 3.23 vs 3.42 rear ratios? Got gears?

38 posts - 20 authors - Last post: May 4, 2004Worth the $ for a 3.42 vs a 3.08? Transmission & Rearend. S10Forum.com is .

3 posts - 3 authors - Last post: May 21, 2007I would not recommend going to 3.08 or 3.42 ESPECIALLY IF YOU EVER PULL, with these gears it will not pull anything very easily, and if you .

10 posts - 9 authors - Last post: Jul 14, 20033.08 vs. 3.42 262ci Forum (4.3). S10Forum.com is the place to discuss 3.08 vs. 3.42.

17 posts - 12 authors - Last post: Jul 26, 2009your opinion on 3.08 vs 3.42 for street Chevelle Tech. . After driving it for years with a 3.08, 12 bolt, I bought a Motive 3.42 R & P and .

33 posts - 12 authors - Last post: Feb 9Is it 3.08, 3.42, or 3.73? I've heard of some swapping their 3.08's for 3.42's in their impalas but I have a hard time believing GM would call .

6 posts - 5 authors - Last post: Jul 24, 2009Any thougts or actual experience in this area will be appreciated. 2005_220 . The 3.42 should be fine. avoid the 3.08 like the plague though. .

12 posts - 8 authors - Last post: Sep 29, 2010I've read the sticky under drivetrain section, but the opionion seems inconclusive. Stay with the 3.08 or go to 3.42 or 3.73? I do like to go fast . .

Jul 10, 2011 – Buying a new chevy z7 crew cab soon and trying to decide. Only pull a utv and trailer only 15-20 times a year around 2000 pounds. Most Of .

10 posts - 7 authors - Last post: Dec 8, 200691 3.1L RS manual, CAI, 3.42 Rear end gears, Catback . up with him because he over revs sometimes or short shifts, and hes slow at doing it. .

21 posts - 9 authors - Last post: Aug 16, 2007[Archive] gears. 3.08's vs 3.73's Transmission & Driveline. . With 3.42 gears you would be at 3094 RPM's at 100 MPH using a tire 26.0" in OD. .

8 posts - 4 authors - Last post: Jan 25Does installing the transmission cooler and oil cooler give you more towing .

Jul 10, 2011 – This website is neither affiliated with, nor endorsed by .

15 posts - 5 authors - Last post: Jun 1, 2010I have a base model 95 fleetwood with the 2.56 gears. At some point I would .

May 31, 2005 – What to expect from a 3.23 rear axle ratio vs. a 3.73 ? . in 91 chevy did use 3.08 on the 2wd models 3.42 was the lowest option. On the 5 .

Aug 14, 2010 – You must include the trans gearing to know the final gear ratio. fyi - 3.73 no longer available with 5.3L engine, 3.08 or 3.42 are your only choice. .

3 posts - 3 authors - Last post: Feb 4, 2007I know that off hand, the G92 had dual cats, so the exhaust could breath a little better, but 3.42 seems high for a TPI engine. at least .

14 posts - Last post: Aug 6, 2004if i swap my 3.42 with 3.08 rear end would i have more get up and go? my dad says yes but with the 3.72 or 4.10 i realy gotta get the rpms up .

6 posts - 5 authors - Last post: Sep 25, 2008( I have a 3.42 set sitting in my garage) should I just swtich the carrier out and keep the 3.08s or go 3.42's. .

7 posts - 5 authors - Last post: Sep 30, 2010well from my experience with the 3.42 and the 3.73, 3.42 were perfect for the highway on a bone stock car. it gave more off the line that the 3.08 .

I am looking at buying a 2010 silverado crew 1500 5.3L w/either a 3.08 or 3 .

Aug 12, 2008 – Engine, 5.3-L V-8, 5.3-L V-8, 6.0-L V-8. Horsepower, 320, 315, 332. Torque (lbs.- ft.) 340, 338, 367. Final Drive Ratio(s), 3.08, 3.42, 3.08 .

5 posts - 5 authors - Last post: Mar 17, 2004The cost between a V8 or 3.8L swap from your 3.4L would be little; maybe a few hundred more for a V8 then a 3.8L. But yeah it would be more .

17 posts - 12 authors - Last post: Feb 17, 2010Running 3.73's now, looking at 3.42's or possibly 3.08's. Gonna keep the 9.5 .

3 answers - Apr 7, 2006Top answer: The 3.08 gear ratio means the drive shaft will rotate 3.08 revolutions to 1 rotation of the rear tire. Thus, the 3.08 will have lower rpms at highway speeds, but not as .

15 posts - 3 authors - Last post: Jun 3, 2005I'll use a 3.42 as the control, because it's pretty close to the middle of both. . Would more towing power come from the 3.08 than the 3.73 or .

Apr 19, 2010 – which would be in a new silverado. daily driven but will add a cam to get more gittyup and diff will comwith a locker.

8 posts - 7 authors - Last post: Aug 15I was looking at possibly buying a 2010 Sierra 4X4 with the 5.3/6 speed. The spec. sheet says that the truck comes with the 3.08 rear axle.

4 posts - 3 authors - Last post: Jun 3, 2010Thoughts on whether I'd be better off with 3.08 (better fuel economy) or 3.42 w/ HD tow package (better for towing)? Trade off either way I realize .

14 posts - 9 authors - Last post: Mar 20, 2010The 3.08 is rated for 7200 pounds and the 3.42 is rated for 9800 pounds. . . heading south but a real bummer heading into the wind or uphill. .

10 posts - 10 authors - Last post: Sep 24, 2010Rear axle ratio for towing 3.42 or 3.08 chevy Other Topics.

Jan 4, 2010 – Hello, Can anyone give me some advice on choosing an axle ratio for a Tahoe? The dealer info is vague. Is there a big difference between a .

3 posts - 3 authors - Last post: Aug 14, 20103.08 or 3.42 gears??? . How much do the 3.42's effect MPG's? also, thinking the 3.08 matched with the 6 speed tranny might not be bad. .

15 posts - 10 authors - Last post: Jul 22, 2010The 3.08s will do quite well also, especially if you're towing around the 5k .

1 post - 1 author - Last post: Apr 27, 20102010 Chevy Silverado: 3.08 vs. 3.42 gear ratio? Chevy Silverado Forum.

15 posts - 9 authors - Last post: Mar 10What is engine rpm at 70 mph with 6 speed and 3.08 vs 3.42? Babyhauler .

4 answers - Aug 7, 2006Top answer: 3:42 in mountains for sure.

Apr 8, 2008 – Change 3.08 gears to 3.42? how much of a difference would this be? Ideally i would like to find the whole lsd unit and gears from a y87. or if .

Third: 1, 1.53. Fourth: 0.7, 1.15. Fifth: —, 0.85. Sixth: —, 0.67. Reverse .

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