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Old 06-18-2008, 10:21 PM   #1
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Gears?

I was thinking that i wanted 4.56's, but proudhemi brings up an interesting point that (especially if i put a 268 in) i might be shifting into 4th on the 1/4. Any thoughts on this? 3.92's aren't bad, but I saw a 4.56 burnout the other day and . Thanks guys, Kenson

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Old 06-19-2008, 09:55 AM   #2
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If you plan on going to the track a lot then 4.10's are really best. But if you do a lot of street driving then the 4.56 are definetly more fun. But there is no question you will run out of gear when going down the 1/4, but there's a trick on not going into 4th but you will also need to be able to raise your rev limiter to do this.
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Old 06-19-2008, 11:24 PM   #3
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well i have the 03 so my rev limit is 6300, i just can't adjust my shift points so even with overdrive off it goes into 4th i'm pretty sure at 5800... now i'll have to check.
I just wonder if when i get it down to low 13's, were i want it, if i'll be running into 4th with anything steeper than 3.92
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Old 06-20-2008, 03:26 PM   #4
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Gears?

the normal shift into 4th under wot has nothing to do with the rev limit, it always occurs around 54-5600 rpms.

4.56's work fine with my 26" tall tires at the track, 103mph is about my max with the 6600 rpm rev limit. as long as you pull the gear selector into 2nd while in 3rd gear above 5000 rpms, before it kicks into 4th, than you can stay in 3rd til the rev limit.

proudhemi is a 4.56 gear hater
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Old 06-20-2008, 05:09 PM   #5
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Yes, I have to do what dline just mentioned when going down the 1/4.

Shift Manually
when taking off gear selector is in 1
when getting close to rev limit, shift gear selector to 2
when getting close to rev limit, shift gear selector to 3
when I pass 5300 rpms in 3rd gear, I drop the gear selector back into 2 and this allows me to stay in 3rd and not hit 4th gear. And then put it back into D when I cross the traps.
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Old 06-20-2008, 10:49 PM   #6
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ok, so i'm assuming that dline isn't having any problems going into 4th, thing that sucks is that my rev limit is 6300, i need to figure out better tuning.
4.56's and smaller tires would be great, but i have a feeling if i do to much more, like a bigger cam or stahl, i'm toast and into 4th.
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Old 06-20-2008, 11:12 PM   #7
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no
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Old 06-23-2008, 10:20 PM   #8
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I think i'm just gonna take dline and sprockets advice and get 4.88's despite that difference in price. truck is about 2k at 70 right now, she'll be screaming down the highway after these bad boys
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Old 07-03-2008, 08:13 PM   #9
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are you gonna run tall stock tires?...4.88's are REALLY tall for a gear... I loved 4.56's when i had them...
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Old 07-03-2008, 08:37 PM   #10
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Gears?

I wouldn't even run 4.88's with my 35's!

Stick with the 4.56's or 4.10's.
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