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Event Calendar
Book Reviews
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Bronco FAQ
Link Back to CB!
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Bronco Tech
3 Arm Wiper Setup
Fix Motor Mount
Roll Cage Braces
Throttle Body 65mm
Wheel Alignment
Heat Riser Replacement
Vent Window Repair
Center Console Mount
Straighten Bumper
Ford 6R80 6 spd
More Tech...
Fix Motor Mount
Roll Cage Braces
Throttle Body 65mm
Wheel Alignment
Heat Riser Replacement
Vent Window Repair
Center Console Mount
Straighten Bumper
Ford 6R80 6 spd
More Tech...
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Articles
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Latest comments
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Optima Battery Myth Busting - Best battery for winching and daily drivingNo idea what they currently are producing, but at one time my work had about 200 of these for testing our products in development. All of them... -
Installing Locking Wing Window LatchesExcellent article! And a worthwhile mod to fix sketchy vent windows!
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Ford 6r80 6 speed automatic trans into a Bronco behind any SBF engineI really loved how informative this is and it really does break down the positives and negatives. Is there someone who would be interested in...
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Early Bronco Vent Window RepairThanks for sharing. I just completed this and am waiting for paint to dry. -
Parking Lights Turn Off When Headlights Are OnMan thank you so much for this post. I was able to make my parking lights run with my headlights.
Tech article by gi_phil
This write-up summarizes how I put on-board air into my 1971 Bronco. I have a 3.5” suspension lift, a 2” body lift, and enjoy wheeling. Having on-board air is not only a nice benefit to airing up and down tires but could also come in handy for a variety of other uses...
Tech article by Viperwolf1
While gathering parts for my 5.0 EFI install I happened across a two speed electric fan from a 2004 Jeep Liberty, part number 55037669AE. This Liberty did not have the towing package. With the towing package the Liberty will have a different electric and a mechanical...
Tech article by Viperwolf1
Many modern vehicles with trailer towing capability have dealer or aftermarket support for trailer harnesses that simply plug in to the vehicle’s factory wiring harness. Early Broncos do not. However the factory Bronco harness has the advantage of simplicity of...
Product Review and Install into a Dana 44 - www.aussielocker.com
Product Review by Jon Hanna (Admin)
AUSSIE LOCKER
Following are my notes from installing an Aussie Locker from Torq Masters into my Dana 44 front end. The unit itself is well made and very stout. The instructions are detailed...
Tech article by Jon Hanna (Admin)
This is the second article in a two part series on popular transmission swaps into your early Bronco. The first article focused on several manual choices for those who like to row their own gears. This second article is for you folks who prefer the ease and...
Tech article by Jon Hanna (Admin)
Automatic Transmission Intro
Gear Ratio Chart (see bottom of this page)
C4
C6
AOD
AODE & 4R70W
700R4
See also Manual Transmission Introduction
Transmission:
700R4 Chevy 4 speed automatic with overdrive
Sources:
1982-1993 Chevy 8 cyl cars...
Tech article by Jon Hanna (Admin)
Automatic Transmission Intro
Gear Ratio Chart (see bottom of this page)
C4
C6
AOD
AODE & 4R70W
700R4
See also Manual Transmission Introduction
Transmission:
AODE & 4R70W (E = electronic, W = wide ratio) 4 speed automatic with overdrive
Sources...
Tech article by Jon Hanna (Admin)
Automatic Transmission Intro
Gear Ratio Chart (see bottom of this page)
C4
C6
AOD
AODE & 4R70W
700R4
See also Manual Transmission Introduction
Transmission:
AOD 4 speed automatic with overdrive
Sources:
1980 -1993 Ford cars and trucks with...
Tech article by Jon Hanna (Admin)
Automatic Transmission Intro
Gear Ratio Chart (see bottom of this page)
C4
C6
AOD
AODE & 4R70W
700R4
See also Manual Transmission Introduction
Transmission:
C6 3 speed automatic
Sources:
1968-1979 Ford 4x4 trucks. You'll need the 4x4 tail...
Tech article by Jon Hanna (Admin)
Automatic Transmission Intro
Gear Ratio Chart (see bottom of this page)
C4
C6
AOD
AODE & 4R70W
700R4
See also Manual Transmission Introduction
Transmission:
C4 3 speed automatic
Sources:
1973-1977 Broncos as well as several other Ford...
Tech article by Jon Hanna (Admin)
Manual Trans Intro
Gear Ratio Chart (see bottom of this page)
NP435
T18
Toploader
ZF
NV4500
NV3550
See also: Automatics
Transmission:
NV4500 (NV = New Venture) 5 speed manual with overdrive
Sources:
1993 and later Dodge 4 wheel drive with...
Tech article by Jon Hanna (Admin)
Manual Trans Intro
• Gear Ratio Chart
• NP435
• T18
• Toploader
• ZF
• NV4500
See also: Automatics
Transmission:ZF 5 speed manual with overdriveSources:1988 or later Ford 4 wheel drive pick up with small block engine. The ZF S542 was used from...
Tech article by Jon Hanna (Admin)
Manual Trans Intro
Gear Ratio Chart (see bottom of this page)
NP435
T18
Toploader
ZF
NV4500
NV3550
See also: Automatics
Transmission:
Toploader (also called "T&C" or "10 bolt top cover") 4 speed manual
Sources:
1967-1982 Ford cars and some...
Tech article by Jon Hanna (Admin)
Manual Trans Intro
Gear Ratio Chart (see bottom of this page)
NP435
T18
Toploader
ZF
NV4500
NV3550
See also: Automatics
Transmission:
T-18 (Borg Warner) 4 speed manual
Sources:
1965-1985 Ford pick ups with a 28 spline output shaft. Jeep and...
Tech article by Jon Hanna (Admin)
Manual Transmission Intro
Gear Ratio Chart (see bottom of this page)
NP435
T18
Toploader
ZF
NV4500
NV3550
See also: Automatics
Transmission:
NP435 (NP=New Process) 4 speed manual
Sources:
1969-1979 Ford F100-F350 pick ups with small blocks...
Tech article by Jon Hanna (Admin)
As much as you love your Bronco for the amazingly capable machine it is from the factory, you probably love to rip stuff out and improve it even more. For many of us the stock transmission is fairly high on that upgrade list.
The 3 speed manual or C4 automatic...
Tech article by Josh Wilczynski (kontinu)
The first thing I did to replace the clutch was remove the transmission and transfer case. I was already in the process of rebuilding both so they were already out of the truck. Otherwise i'm not sure how you would go about it? The second step is to...
Tech article by Aaron Modlin (BUCKETOBOLTS)
I snapped a few PICs as I've been working on my C4 rebuild and thought I'd share how I modified my transmission. Most early Bronco and truck application transmissions are already well equipped. The input shafts are usually hardened. They have the...
Tech article by Larry C. (MarsChariot)
General Comments
The following comments are based on my experience installing a complete Advance Adapters NV3550 5-speed conversion kit into a '71 Bronco in the summer of 2002. The conversion is a perfect fit and is not particularly difficult. It requires...
Tech article by Clay McGuill (eBronc)
NV3550. NV4550. ZF S5-42. No, they’re not map coordinates – just a few of the manual transmissions popular for swapping into Early Broncos. Whether to gain a low "crawler" gear for offroad use, an overdrive for highway travel, or for the strength and easy...