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08-07-2011, 04:56 PM #1
- Join Date
- Dec 2010
2010 Silverdo Rear end ratio change???
Hey guys,I got a 2010 silverado with 6-speed, 5.3 and 3.08 gears
I pull a 5,000 boat, and cattle trailer pushing 6000lbs. I was told this would not be a problem when buying the truck, but I can tell I need alittle more power when traveling with it. Is it posslbe to replace the 3.08 gears with 3.42 or 3.73? Can the physical gears just be replaced, or does the entire rear axle have to go. Never done this to any of my previous rides, but for what I doing now, I need more pull.
Also, since the rear end would turn at a different speed, does anything have to be changed in the front diff to keep the wheels turning equal?
Any advice or help would be great. THanks guys
08-07-2011, 05:07 PM #2
- Join Date
- Sep 2010
- Far West, Oregon USA,
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Yes you can do just the ring & pinion, BUT you should change the ring & pinion in the front diff too so they rotate at the same speed when in 4WD, otherwise you're going to have some major issues How much does your cattle trailer weigh when loaded up?1988 Chevy C-3500 2wd (no pic)
350 c.i. 5.7 L Stock Block, 4 Bolt Mains
L-31 Vortec Heads, Edelbrock Cam & Intake,
Holley 650, Flowtech Headers, Magnaflow exh.
Jet Trans 700R4, B&M Ratchet, 4:10 gears,
3" susp. lift kit "shadetree"
No rev limiter, No speed limiter lol
08-07-2011, 10:57 PM #3
3.73's front and rear. I believe that's what comes in the 6.2's with the Max Trailering PKG.
08-09-2011, 06:00 AM #4
I learn something new every day. All 4x4's I've seen are at or near 4:10 ratios. I don't doubt you but that seems awfully high for a 4x4, but maybe that's what the 6 spped tranny is for. You don't have oversized tires on it by any chance do you? A cheaper way to bypass the gear issue might be going to a low profile tire, say a 50 series, for towing. That way you won't have to mess with the front axle either. Just a thought.
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