gearing advice - FSB Forums
Register Home Forums Active Topics Photo Gallery All Albums Mark Forums Read Auto EscrowInsurance FSB Store
FullsizeBronco.com is the premier Ford Bronco Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
Old 11-30-2012, 03:19 PM   #1
task1
Registered User
 
task1's Avatar
 
Join Date: Mar 2005
Location: el paso tx
Posts: 143
iTrader: (0)
Bronco Info: '79 400m 0.30 over comp cam edelbrock intake/carb double exhaust 4in lift 33in bfgs
gearing advice

Hey guys looking for some advice. I have a 79 bronco with a 400 0.30 over edelbrock alum intake, comp cam, howell tbi, detroit on back running 33 tires.
I dont think truck is underpowered. I mostly run sand dunes and on long hill climbs truck maxs out would regearing help out any????

On highway it does approx 2-2300RPM at 60mph
task1 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-30-2012, 04:22 PM   #2
JBfab
Registered User
 
JBfab's Avatar
 
Join Date: Oct 2010
Location: Slatington, PA
Posts: 2,478
iTrader: (9)
Bronco Info: 94 C150 prerunner 351/zf/maf. To many mods to list.
What is your current gear ratio?
__________________
It's not custom if you bought it from a catalog!
Visit my build thread- http://www.fullsizebronco.com/forum/...d.php?t=211825
JBfab is offline   Reply With Quote
Old 11-30-2012, 04:34 PM   #3
/==0=\
TTB for short
 
/==0=\'s Avatar
 
Join Date: Nov 2003
Location: The House that Peter Bilt
Posts: 2,211
iTrader: (0)
Bronco Info: '95 L,'93 Bronc,'96 Turbo Dizzle
Whats the rpm range on the cam and intake? That will be the major factor...
__________________
Charity is injurious unless it helps the recipient to become independent of it.
John D. Rockefeller
/==0=\ is offline   Reply With Quote
Old 11-30-2012, 09:32 PM   #4
task1
Registered User
 
task1's Avatar
 
Join Date: Mar 2005
Location: el paso tx
Posts: 143
iTrader: (0)
Bronco Info: '79 400m 0.30 over comp cam edelbrock intake/carb double exhaust 4in lift 33in bfgs
Im running stock gears 3.5? Forgot to mention that in 4 hi it feels likevit wont even move so always wheel in 4 lo
task1 is offline   Reply With Quote
Old 12-01-2012, 03:26 AM   #5
El Kabong
Driving Stuff Henry Built
 
El Kabong's Avatar
 
Join Date: Oct 2006
Location: Pasadena, CA
Posts: 5,258
iTrader: (9)
Bronco Info: -90 xlt, 351w, e4od, 3.55:1, sag, warn hubs, trans cooler, 35" bfg m/t, -73, 400, np435, 35s
Sure, lower gears would give you more torque to the wheels. The trade off is higher revs on the highway, but your truck would probably appreciate it on the hills. 33's are larger than stock, so you currently have less torque to the wheels than it started out with.

Here's a good Gear Ratio Calculator. Plug in your current info on one side, & your new combo on the other, then hit Calculate on each to see what effect the changes will have.
__________________
Baba Looey's Favorite FSB Links........................Common Replies to FAQs

“Don't find fault, find a remedy.” -Henry Ford
El Kabong is offline   Reply With Quote
Old 12-01-2012, 11:57 AM   #6
helirich
Registered User
 
helirich's Avatar
 
Join Date: Jul 2009
Location: Florida
Posts: 2,535
iTrader: (1)
Bronco Info: 90' 351/E40D 38" tires, 4.88 gears, full float 8.8, lockers F&R
Quote:
Originally Posted by task1 View Post
Hey guys looking for some advice. I have a 79 bronco with a 400 0.30 over edelbrock alum intake, comp cam, howell tbi, detroit on back running 33 tires.
I dont think truck is underpowered. I mostly run sand dunes and on long hill climbs truck maxs out would regearing help out any????

On highway it does approx 2-2300RPM at 60mph
When you say maxs out, what do you mean?
1. Does it bog down and down shift.

2. Or do you mean that you are spinning the wheels as fast as you can in 3rd gear-low range and want more wheel speed?

If 1, (hard to believe in low range) keep it in 2nd.

If 2, get bigger tires.

I think your gears are OK.
helirich is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  FSB Forums > Bronco Discussions > Noobie Bronco Tech Questions. Flame free zone!


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 04:40 AM.


© 2003-2009 FullSizeBronco.com. All rights reserved