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01-20-2010, 08:42 PM | #1 |
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Location: Liberty, Ky
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3.73 or 4.10 what would be the best
I have a 1972 K-10, 350, 3 on the tree, 35-12.50-15 tires, running 3.07 front and rearends. The motor is strong but it`s geared to high. I think for the tires I`m going to go with 30-10.50-15 when the others wear out. I thought maybe someone on here had the same problem and could give me some good info. Thanks.
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01-20-2010, 09:11 PM | #2 |
Registered Chevy Owner
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Location: Snohomish, wa
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Re: 3.73 or 4.10 what would be the best
What are you trying to accomplish? Do you want better gas mileage or do you want to have more power to the wheels?
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Love is fleeting, but Chevy trucks are forever!!!! 1970 Chevy CST C10 long box 350/400 2008 Chevy Silverado short box 4x4 Had; 1951 Chevy short box 307/T5 1988 Chevy shot box 4x4 350/350 1971 Chevy C10 long box 4x4 350/350 1971 Chevy C20 long box 350/350 1971 Chevy C10 long box 350/350 |
01-20-2010, 09:12 PM | #3 |
SWB 4x4 Collector
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Re: 3.73 or 4.10 what would be the best
4.10
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TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever |
01-20-2010, 09:53 PM | #4 |
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Re: 3.73 or 4.10 what would be the best
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01-20-2010, 09:56 PM | #5 |
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Location: enumclaw wa
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Re: 3.73 or 4.10 what would be the best
I think when you switch to thirty inch tires you will like the 3.07 I'd see what its like before I went and changed diffs.
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01-20-2010, 11:43 PM | #6 |
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Re: 3.73 or 4.10 what would be the best
I want more power at the wheels and still get decent gas mileage.
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01-20-2010, 11:45 PM | #7 |
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Re: 3.73 or 4.10 what would be the best
I want more power at the wheels and still get decent gas mileage.
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01-21-2010, 12:00 AM | #8 |
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Re: 3.73 or 4.10 what would be the best
I would say if you're going to a 30" wheel the go to 3.73. That's the same set up I have on my '88 4x4 w/ a 350/350 and I get about 15mpg average. I still have decent power. I'm not gonna win any drag races, but it's enough for me.
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Love is fleeting, but Chevy trucks are forever!!!! 1970 Chevy CST C10 long box 350/400 2008 Chevy Silverado short box 4x4 Had; 1951 Chevy short box 307/T5 1988 Chevy shot box 4x4 350/350 1971 Chevy C10 long box 4x4 350/350 1971 Chevy C20 long box 350/350 1971 Chevy C10 long box 350/350 Last edited by nickp51chevy; 01-21-2010 at 12:02 AM. Reason: + |
01-21-2010, 12:17 AM | #9 |
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Location: Liberty, Ky
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Re: 3.73 or 4.10 what would be the best
I just want to be able to pull my bike trailor that hauls 2 Harleys (about 1400 lbs) and not have to down shift when I hit a small hill.
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01-21-2010, 12:47 AM | #10 |
I make Models
Join Date: May 2005
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Posts: 626
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Re: 3.73 or 4.10 what would be the best
I would go with the 4:10's but I would also go with like 33" tires....in my opinion the 30" will look to small on your truck....JMHO
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01-21-2010, 01:23 AM | #11 |
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Re: 3.73 or 4.10 what would be the best
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01-21-2010, 02:33 AM | #12 |
SWB 4x4 Collector
Join Date: Jun 2001
Location: Osage City, KS
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Re: 3.73 or 4.10 what would be the best
oops, I misread your message. I didn't see you were wanting to put 30" tires on it. 3:07 would be fine with 30" tires. 3:73 would be better for pulling with 30" tires, and 4:10 would almost be overkill for them. I agree that you should atleast have some 33"s so the truck doesn't look rediculous without some bigger tires under a lifted vehicle. Trevor
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TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever |
01-21-2010, 01:00 AM | #13 |
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Location: Snohomish, wa
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Re: 3.73 or 4.10 what would be the best
30's aren't that bad. I have the stock size tires on my '71 and they are 28.8" and they don't look bad. I did put the 30's from my '88 on my '71 4x4 to see how it would look. I thought it filled up the wheel wells nicely.
__________________
Love is fleeting, but Chevy trucks are forever!!!! 1970 Chevy CST C10 long box 350/400 2008 Chevy Silverado short box 4x4 Had; 1951 Chevy short box 307/T5 1988 Chevy shot box 4x4 350/350 1971 Chevy C10 long box 4x4 350/350 1971 Chevy C20 long box 350/350 1971 Chevy C10 long box 350/350 |
01-21-2010, 05:39 PM | #14 |
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Re: 3.73 or 4.10 what would be the best
with 30" tires you should be fine w the 3.07s
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01-21-2010, 08:31 PM | #15 |
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Re: 3.73 or 4.10 what would be the best
3.73 is a good compromise in a 1/2 ton truck. if it was a 3/4 ton and i was pulling loads with it, i'd want the 4.10. either rear gear with an overdrive will be waaaaay better than a 3.07 for solo highway driving.
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01-21-2010, 10:47 PM | #16 |
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Re: 3.73 or 4.10 what would be the best
x2
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68 3/4 ton (Project)-350 Small Block, .030 over, 10:1 comp, 3998993 heads, C3BX edelbrock intake, comp cams XE268, Holley 670 SA, long tube headers, dual flow 40's, E-fan, Alum rad, currently under the knife getting shortened and bagged build thread 41 3/4 ton (wife's)-flatbed, fully restored to original 01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's 02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's |
01-21-2010, 11:31 PM | #17 |
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Re: 3.73 or 4.10 what would be the best
on a 30" tire, I would agree that a 3.73 will give you the best all around power. If it were mine, I would swap the 35's for the 30's that you are lookin at, & see how she feels. You are running 3 series gears, & can swap to a 3.42 gear set without swapping carriers(a little cheaper in the long run). The 33" tires will take 3.73 to 4.10 gears to be "right with the world", & you will be 4.10-4.56 with 35" tires (to get the best power). Best of luck,crazyAL
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01-22-2010, 04:16 AM | #18 |
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Location: Simi Valley, CA
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Re: 3.73 or 4.10 what would be the best
If you have a 3 speed transmission 3.73's, if you have over drive 4.10 would work. If you want gas mileage stick with 3.73 regardless of what trans you have
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