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spikekid999
 
  4:10 gears - Posted: 11-06-2012, 08:19 PM
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Post #1

plannin on doing a gear swap sometime in the future, but not sure if i should go with 3:90s or 4:10s. i know a lot of people say 4:10s, but thinking it may be a bit high considering i do take road trips with it.

for the ones running 4:10s and 33" tires, what rpm are you runnin at 75mph on the highway?
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spun360
 
 Posted: 11-07-2012, 07:09 PM
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Post #2

i have 3:92s and have run many size tires. i'd rather have 4:10s
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98hemi-ram
 
 Posted: 11-07-2012, 07:49 PM
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Post #3

Hmm I'm also interested in hearing some responses on this. I was still undecided between 3.92 and 4.10s. I'll only be running a 30-31" tire at the max though.
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98 Ram 1500 RCSB 2wd - 5.7 Hemi swapped
5.7 Hemi ,comp 260 cam, 87mm TB, 180* t-stat, EGR deleted, dual 14" electric fans, K&N cai, A/C deleted, diablo Intune 91 tune (custom tuning to come soon), sharadon stage 3 valve body, true duals with flowmaster super 44's and 70's challenger style tips, 4.10 gears, Detroit True-Trac, 3rd gen 20's, aftermarket 1pc headlights, LED tails/3rd brake lights, CREE LED reverse lights, blue LED dash, LED dome lights, LED strips in the box, red LEDs behind grill, 5% tinted windows, 2/4 drop, hard tonneau cover, BedRug box liner
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spun360
 
 Posted: 11-07-2012, 08:32 PM
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Post #4

so far the tire list consists of 245, 265, 285s and the truck isnt phased by them. its just all in the mileage. engine handles it pretty good. i have always just felt the need for more gear. my rpms arent all that high. actually cause of the 46re OD rpm seem too low most the time. perhaps i will know more after the viper level 2 trans make over.
from what i understand, a stick trans needs less gear and autos need alittle more
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parts for sale
$800: 5 ram 1500 RIMS & TIRES for sale like new http://www.dodgetalk.com/forums/show...78#post5474378
$125: 210lb double and dampener valve springs .550 lift
$20 : new, standard oil pump
$15 : new, super strength moog #377 frt axle hub universal w/ grease fitting
prices include shipping (for residence of the US)
cheep
shoot PMs my way
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98hemi-ram
 
 Posted: 11-07-2012, 08:40 PM
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Post #5

I guess my setup will be a bit different from most once the hemi is in. Ive seen a lot of hemi guys running 4.56's but I think that seems a little steep for me. Maybe ill just try the 4.10's when the time comes.
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98 Ram 1500 RCSB 2wd - 5.7 Hemi swapped
5.7 Hemi ,comp 260 cam, 87mm TB, 180* t-stat, EGR deleted, dual 14" electric fans, K&N cai, A/C deleted, diablo Intune 91 tune (custom tuning to come soon), sharadon stage 3 valve body, true duals with flowmaster super 44's and 70's challenger style tips, 4.10 gears, Detroit True-Trac, 3rd gen 20's, aftermarket 1pc headlights, LED tails/3rd brake lights, CREE LED reverse lights, blue LED dash, LED dome lights, LED strips in the box, red LEDs behind grill, 5% tinted windows, 2/4 drop, hard tonneau cover, BedRug box liner
15.01 @ 93.80mph

06 Ram 1500 QCSB 4x4
5.7 Hemi, superchips 91 tune, flowmaster super 40, leveled with bilstein 5100's, 5% tint all around, KC high lites behind the grill, CREE LED reverse lights, hard tonneau cover
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Woodstock
 
 Posted: 11-10-2012, 07:23 PM
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Post #6

I run a lot of highway miles and 4.10's with 31 inch tires seemed perfect for me. I got better gas mileage after the swap from 3.55's. I now have 33 inch tires and now wish I had gone with 4.56's.
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spikekid999
 
 Posted: 11-10-2012, 11:54 PM
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Post #7

what rpm are you running at 75?
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spun360
 
 Posted: 11-11-2012, 12:07 AM
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Post #8

perhaps i could answer. 33" tire - 3:92 gear - 65 m/hr - 1800 rpm. i might hit 2k rpm at 75 m/hr
if i was going to run 33s all the time 4:10s are ok- but 4:56 would be the way to go. since this truck got camed, it acts like a sprint car and i think i'm going to down size to 265s next.
does that help any?
how bout you woodstock?
__________________
parts for sale
$800: 5 ram 1500 RIMS & TIRES for sale like new http://www.dodgetalk.com/forums/show...78#post5474378
$125: 210lb double and dampener valve springs .550 lift
$20 : new, standard oil pump
$15 : new, super strength moog #377 frt axle hub universal w/ grease fitting
prices include shipping (for residence of the US)
cheep
shoot PMs my way

Last edited by spun360 : 11-11-2012 at 12:09 AM. Reason: oops
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Zach571
 
 Posted: 11-11-2012, 09:03 AM
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Post #9

You can run your numbers here to find what will work best for you.

http://www.4lo.com/calc/gearratio.php

Zach571
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Woodstock
 
 Posted: 11-12-2012, 01:41 PM
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Post #10

You guys are night owls. you nailed it spun360.
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2000 1500 Sport 5.9 4X4 QC 46re w/TFODjr
SCT by hemifever, 4.10 Gears, Stainless Steel Headers
HellBent Steel leveling kit, 33X12.50X16 Super Swamper TSL Radials
1985 350 Custom Dually 360ci 4barrel 727
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Woodstock
 
 Posted: 11-12-2012, 01:48 PM
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Post #11

Zach571, I bookmarked that site - thanks. Really close to actual RPM's (2300rpms @ 75mph)
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2000 1500 Sport 5.9 4X4 QC 46re w/TFODjr
SCT by hemifever, 4.10 Gears, Stainless Steel Headers
HellBent Steel leveling kit, 33X12.50X16 Super Swamper TSL Radials
1985 350 Custom Dually 360ci 4barrel 727
View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote
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