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01-27-2010, 01:36 PM
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#1 |
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Registered User
Join Date: Dec 2008
Location: Ashland, KY
Posts: 700
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3.73 or 3.43?
Im switching gears (or rearends if i can find one) in my truck. it has 3.08s and im not really happy with them as on the high way i run RPMs below my optimal powerband. id like to have a rearend that i will still be able to drive on the highway and pull a trailer with. i was thinking 3.43 or 3.73 richmond gears? the truck is a LWB with a Th400 and 400 sbc? which ratio would be better for my truck in your opinions?
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68 C10 LWB 2/4 drop 406/th400/3.73posi 04 Silverado SS LQ9 6.0/4L65e/4.11posi AWD |
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01-27-2010, 01:41 PM
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#2 |
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Registered User
Join Date: Jun 2008
Location: South Florida
Posts: 11,375
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Re: 3.73 or 3.43?
I went with 373's and it has worked out awesome.....power at low speeds and the highway the rpms are not too high.
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Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild |
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01-27-2010, 01:56 PM
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#3 |
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Senior Member
Join Date: Jun 2001
Location: Shelbyville, KY
Posts: 3,261
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Re: 3.73 or 3.43?
If you do occasional towing and roadability is critical then 373's are pretty good choice. If MPG is also an important consideration, then the 342's are a great compromise. 308's are a little tall and 4.11's are a little to low for most combined driving. Huck
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01-27-2010, 04:26 PM
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#4 |
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Registered User
Join Date: Aug 2009
Location: St. Paul MN.
Posts: 1,996
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Re: 3.73 or 3.43?
3.73 I think is your best option gear for your application
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01-27-2010, 04:49 PM
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#5 |
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68 C10 SWB
Join Date: Nov 2009
Location: Chicago
Posts: 216
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Re: 3.73 or 3.43?
How can i figure out what the hell i have?
__________________
"How much physical pain do you go through on a daily basis that you can directly attribute to your lack of intelligence?" -R0bman |
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01-27-2010, 05:01 PM
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#6 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: 3.73 or 3.43?
with the tall tires you have, I'd go for the 3.73 gearset.
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01-27-2010, 06:17 PM
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#7 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: 3.73 or 3.43?
I`d say 3.73 with the taller tires.A 2wd I`d say 3.42s to still pull or go with o/d.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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01-27-2010, 06:58 PM
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#8 |
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Grandpa in the rustmobile...
Join Date: Nov 2008
Location: Spokane WA/Viola TN
Posts: 11,422
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Re: 3.73 or 3.43?
wanted 373 but found a 3.08 for 75$
is this too good of a deal? dont do much highway so no need for tall gears..
__________________
John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4 |
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