84gmcjimmy
1 ton status
What gears for 38\'s?
Hey, I was wondering what gears I should run with 38's? It's a DD. Thanks
Hey, I was wondering what gears I should run with 38's? It's a DD. Thanks
CK5
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What gears for 38's?
- Thread starter 84gmcjimmy
- Start date
Tweetysuarus
1/2 ton status
Re: What gears for 38\'s?
At least 4:56.JMO! But I wished I had gone with 4:88's or 5:13's.........HHHhhhhhmmmmmmm...........
Bill
At least 4:56.JMO! But I wished I had gone with 4:88's or 5:13's.........HHHhhhhhmmmmmmm...........
Bill
Re: What gears for 38\'s?
Depends on what motor/tranny combo you have but in most cases 5.13's would be the best. /forums/images/graemlins/thinking.gif
Depends on what motor/tranny combo you have but in most cases 5.13's would be the best. /forums/images/graemlins/thinking.gif
TruckNutzDude
1/2 ton status
Re: What gears for 38\'s?
5.13's if you have an overdrive transmission... 4.88's or 4.56 if you don't. If it was me I'd use 5.13's either way /forums/images/graemlins/waytogo.gif
5.13's if you have an overdrive transmission... 4.88's or 4.56 if you don't. If it was me I'd use 5.13's either way /forums/images/graemlins/waytogo.gif
84_Chevy_K10
Banned
Re: What gears for 38\'s?
I've got 4.10s and no complaints. 4.56 would probably be ideal for MPG with 4.88 or 5.13 being the choices for a rig that sees quite a bit of off road use.
I personally am going all the way to 5.13 if I ever change. Not worth it otherwise if you ask me.
I've got 4.10s and no complaints. 4.56 would probably be ideal for MPG with 4.88 or 5.13 being the choices for a rig that sees quite a bit of off road use.
I personally am going all the way to 5.13 if I ever change. Not worth it otherwise if you ask me.
K5MONSTERCHEV
1/2 ton status
Re: What gears for 38\'s?
I put 4.56s in my buddies truck with 38s. He has a 350 and 4L60E. We should have gone lower. That being said.
4.88 /forums/images/graemlins/thumb.gif
I put 4.56s in my buddies truck with 38s. He has a 350 and 4L60E. We should have gone lower. That being said.
4.88 /forums/images/graemlins/thumb.gif
Re: What gears for 38\'s?
i have 4.10's for my 38's. I am at around 2500rpms at 60mph. Well, that may be off some since I'm using my stock tach to gauge.
I went with 4.10's since my d60 already had them and I regeared the 14bolt by myself up to 4.10 /forums/images/graemlins/woot.gif
i have 4.10's for my 38's. I am at around 2500rpms at 60mph. Well, that may be off some since I'm using my stock tach to gauge.
I went with 4.10's since my d60 already had them and I regeared the 14bolt by myself up to 4.10 /forums/images/graemlins/woot.gif
K5MONSTERCHEV
1/2 ton status
Re: What gears for 38\'s?
With my 38s and 4.10s I spin at 1800RPM at 70 MPH, in overdrive.
With my 38s and 4.10s I spin at 1800RPM at 70 MPH, in overdrive.
Re: What gears for 38\'s?
/forums/images/graemlins/frown.gif I don't want to hear you brag about how awsome that NV4500 is. /forums/images/graemlins/thinking.gif /forums/images/graemlins/whistling.gif /forums/images/graemlins/rotfl.gif
/forums/images/graemlins/frown.gif I don't want to hear you brag about how awsome that NV4500 is. /forums/images/graemlins/thinking.gif /forums/images/graemlins/whistling.gif /forums/images/graemlins/rotfl.gif
rockinr4x4
Newbie
Re: What gears for 38\'s?
I'm running 38's with 5.13's and a 700r4, turning about 2600 in overdrive at 70. In my opinion its just about perfect for everyday driving in town, and on the highway.
I'm running 38's with 5.13's and a 700r4, turning about 2600 in overdrive at 70. In my opinion its just about perfect for everyday driving in town, and on the highway.
chvyhs
1/2 ton status
Re: What gears for 38\'s?
I've been running 3.73's with my 38's for about a year now. It's great on the freeway but a little sluggish off of the line, but what more can you expect with a '90 Suburban. Out on the trail I almost always had to go directly to 4low. So I've bought 4.88's to and a doubler to handle things better. Give me another couple of weeks and I'll tell you how things worked out.
I've been running 3.73's with my 38's for about a year now. It's great on the freeway but a little sluggish off of the line, but what more can you expect with a '90 Suburban. Out on the trail I almost always had to go directly to 4low. So I've bought 4.88's to and a doubler to handle things better. Give me another couple of weeks and I'll tell you how things worked out.
K5MONSTERCHEV
1/2 ton status
Re: What gears for 38\'s?
[ QUOTE ]
/forums/images/graemlins/frown.gif I don't want to hear you brag about how awsome that NV4500 is. /forums/images/graemlins/thinking.gif /forums/images/graemlins/whistling.gif /forums/images/graemlins/rotfl.gif
[/ QUOTE ]
HEY, I just said in OD, nothing about my NV 4500. /forums/images/graemlins/rotfl.gif But since you said it, yeah it is AWESOME!! /forums/images/graemlins/peace.gif
[ QUOTE ]
/forums/images/graemlins/frown.gif I don't want to hear you brag about how awsome that NV4500 is. /forums/images/graemlins/thinking.gif /forums/images/graemlins/whistling.gif /forums/images/graemlins/rotfl.gif
[/ QUOTE ]
HEY, I just said in OD, nothing about my NV 4500. /forums/images/graemlins/rotfl.gif But since you said it, yeah it is AWESOME!! /forums/images/graemlins/peace.gif
78GMC1/2TON4x4
1/2 ton status
Re: What gears for 38\'s?
[ QUOTE ]
I'm running 38's with 5.13's and a 700r4, turning about 2600 in overdrive at 70. In my opinion its just about perfect for everyday driving in town, and on the highway.
[/ QUOTE ]
Not...gear calc says 2200 rpm at 70 in OD with 5.13's and a 700R-4 running 38's.
Fix your tach. /forums/images/graemlins/peace.gif
Rene
[ QUOTE ]
I'm running 38's with 5.13's and a 700r4, turning about 2600 in overdrive at 70. In my opinion its just about perfect for everyday driving in town, and on the highway.
[/ QUOTE ]
Not...gear calc says 2200 rpm at 70 in OD with 5.13's and a 700R-4 running 38's.
Fix your tach. /forums/images/graemlins/peace.gif
Rene
Derf00
1/2 ton status
Re: What gears for 38\'s?
[ QUOTE ]
Not...gear calc says 2200 rpm at 70 in OD with 5.13's and a 700R-4 running 38's
[/ QUOTE ]
2200 is what ours runs at 70, of course it's a little hard to figure our where 70 is with the speedo off by a large amount. /forums/images/graemlins/thumb.gif
[ QUOTE ]
Not...gear calc says 2200 rpm at 70 in OD with 5.13's and a 700R-4 running 38's
[/ QUOTE ]
2200 is what ours runs at 70, of course it's a little hard to figure our where 70 is with the speedo off by a large amount. /forums/images/graemlins/thumb.gif
rockinr4x4
Newbie
Re: What gears for 38\'s?
My tach reading should be right on since its being read off the ecm in my edelbrock efi unit. The difference could come from me not having a lockup converter.
My tach reading should be right on since its being read off the ecm in my edelbrock efi unit. The difference could come from me not having a lockup converter.
84gmcjimmy
1 ton status
Re: What gears for 38\'s?
Would 5.13's work for a daily driver? I have a 350 right now, but I'll be investing in a fo-fitty-fo once I have the funds /forums/images/graemlins/peace.gif Thanks
Would 5.13's work for a daily driver? I have a 350 right now, but I'll be investing in a fo-fitty-fo once I have the funds /forums/images/graemlins/peace.gif Thanks
Re: What gears for 38\'s?
Should be 2350 rpm without the convertor locked...
Rene
Should be 2350 rpm without the convertor locked...
Rene
