You can now vote for 4x4 Mecca! Please vote now.

Go Back   4x4 Forum | 4x4 Mecca > 4x4 and Tech Forums > Tech Tuesdays

Reply
 
LinkBack Thread Tools Display Modes
Old January 9th, 2007, 08:19 AM   #1 (Link to post)
That's Mr.4x4Mecca to you
Points: 5,075,658, Level: 100 Points: 5,075,658, Level: 100 Points: 5,075,658, Level: 100
Level up: 0% Level up: 0% Level up: 0%
Activity: 0% Activity: 0% Activity: 0%
 
4x4 Mecca's Avatar
 
Name: Branndon
Joined: July 2006
Location: Orange County, Ca
Posts: 6,335

Awards Showcase
MOTM 
Total Awards: 1

Default Tech Tuesday: 14 Bolt Full-Floater

Welcome to Tech Tuesday. The way this works is simple. I bring up a topic related to off roading in some way, ask questions, get feedback, basically interview you guys. If you have something useful to say, add it, if not, just read.

14 Bolt Full-Floater Encyclopedia

What do you know about this axle?
Is there anything stronger?
What does it cost?
Where can I find one?
How easy are parts to find?
What swaps are available?
Is it worth upgrading to from a 12 bolt?
Which gears are available?
Anything else I should know about this axle?

Links
14 Bolt 1410 Yoke and U-bolt Kit
14 Bolt Axle Shaving
14 Bolt Bible
14 Bolt Detroit Locker Install
14 Bolt Gear Install
14 Bolt Welding the Spider Gears
ARB 14 Bolt Air Locker Install
Jethro Built 14 Bolt Diff Cover
__________________

Having a bad day? - Control-Alt-A | Want to see all new site activity? Control-Alt-N

Last edited by 4x4 Mecca; January 9th, 2007 at 08:21 AM.
4x4 Mecca is offline   Patriotic 4/6 - If it breaks, I can usually fix it. Reply With Quote
Old January 9th, 2007, 08:52 AM   #2 (Link to post)
Shiny Side Down
Points: 1,034,110, Level: 100 Points: 1,034,110, Level: 100 Points: 1,034,110, Level: 100
Level up: 0% Level up: 0% Level up: 0%
Activity: 0% Activity: 0% Activity: 0%
 
cbbr's Avatar
 
Name: Chad
Joined: September 2006
Location: In a swamp.
Posts: 9,876

Awards Showcase
MOTM 
Total Awards: 1

Default Re: Tech Tuesday: 14 Bolt Full-Floater

Mine came out of a 1986 M1008 (CUCV). Typically the go for less than $200 unless they have been rebuilt/dressed up.

Mine has 4.56 gears and a detroit locker from the factory as part of the Mil spec.

My opinion - there may be something that's techinically stronger, but most of us will never need it. For the money, it is the #1 axle for a truck that sees the street and trail, including hard rock crawling.

When I rebuild mine in a month or so (shave/move perches/change all seals/bearings/new diff cover/Caddy brakes) I will post a full write up with pics.
__________________
1990 Chevy Suburban Specs
cbbr is offline   Patriotic 4/6 - If it breaks, I can usually fix it. Reply With Quote
The Following User Says Thank You to cbbr For This Useful Post:
4x4 Mecca (January 9th, 2007)
Old January 9th, 2007, 10:02 AM   #3 (Link to post)
Points: 3,244, Level: 8 Points: 3,244, Level: 8 Points: 3,244, Level: 8
Level up: 50% Level up: 50% Level up: 50%
Activity: 0% Activity: 0% Activity: 0%
 
Joined: January 2007
Location: Atlanta
Posts: 6
Default Re: Tech Tuesday: 14 Bolt Full-Floater

I also have a 1986 CUCV 14 bolt. I bought it as a set with a Dana 60 front for $1700.

The military version is great since it comes with 4.56 gears and a Detroit, but it does take some work to put it in anything other than another one ton. You have to relocate the spring perches and shock mounts. If I had not bought the axle as a set with the gear ratio that I wanted, I would have sourced a van 14 bolt since it will bolt in to a half ton and is the same width as the front axle. I have seen these at my local pull a part for $100.

This axle is super strong and is a full floater. I would definetly recommed this as a an upgrade. I was able to put disc brakes with a parking brake on for under $500.

One of the main disadvantages to a 14 bolt is that the gears only go to 5.13 (I'm pretty sure). The other disadvantage is that this axle is HUGE. Mine (unshaved) sitting on 37'' MTR's gives me about 9.5'' of clearance under the pumpkin.
__________________

Kudzu Crawler is offline   Reply With Quote
The Following User Says Thank You to Kudzu Crawler For This Useful Post:
4x4 Mecca (January 9th, 2007)
Old January 9th, 2007, 11:32 AM   #4 (Link to post)
Shiny Side Down
Points: 1,034,110, Level: 100 Points: 1,034,110, Level: 100 Points: 1,034,110, Level: 100
Level up: 0% Level up: 0% Level up: 0%
Activity: 0% Activity: 0% Activity: 0%
 
cbbr's Avatar
 
Name: Chad
Joined: September 2006
Location: In a swamp.
Posts: 9,876

Awards Showcase
MOTM 
Total Awards: 1

Default Re: Tech Tuesday: 14 Bolt Full-Floater

I'll be on the same tires, which is why I am going to shave the axle. I am on a 14bsf now, so it shouldn't be that different. But that rock hanging lip on the 14bff has to go.
__________________
1990 Chevy Suburban Specs
cbbr is offline   Patriotic 4/6 - If it breaks, I can usually fix it. Reply With Quote
Old January 9th, 2007, 03:18 PM   #5 (Link to post)
Green Seal
Points: 26,587, Level: 23 Points: 26,587, Level: 23 Points: 26,587, Level: 23
Level up: 59% Level up: 59% Level up: 59%
Activity: 0% Activity: 0% Activity: 0%
 
Cajun4x4's Avatar
 
Name: Drew
Joined: July 2006
Location: lafayette, LA
Posts: 363
Default Re: Tech Tuesday: 14 Bolt Full-Floater

definately worth upgrading from a 12bolt which is for all entinsive purposes the same strength as a 10bolt

deepest gears now available are 5.38s

unlike all other axles the open carrier of the 14ff is so massive that a full detriot fits snuggly inside, dramaticaly dropping the cost around $200 as compared to identical units for say a d70

disk brake conversion brackets can be had cheap and is a worth while swap

they can be found in a multitude of places (from peoples back yards to just about every junk yard in the country) and go generaly for $100-200

my 14ff with all the bells and whistles minus chromo shafts and e-brake calipers is only gonna set me back $1100, which isnt to shabby in my book
__________________
1997 GMC k1500 Specs
Cajun4x4 is offline   5/6 - I can fix almost any problem I come across. Reply With Quote
The Following 3 Users Say Thank You to Cajun4x4 For This Useful Post:
4x4 Mecca (January 9th, 2007), ccatlett1984 (February 19th, 2007), walla2k5 (March 17th, 2007)
Old January 9th, 2007, 08:01 PM   #6 (Link to post)
NO MSG
Points: 74,486, Level: 39 Points: 74,486, Level: 39 Points: 74,486, Level: 39
Level up: 12% Level up: 12% Level up: 12%
Activity: 0% Activity: 0% Activity: 0%
 
BuddyRammit's Avatar
 
Name: Brian
Joined: October 2006
Location: Fontana, CA
Posts: 112
Default Re: Tech Tuesday: 14 Bolt Full-Floater

Quote:
Originally Posted by Kudzu Crawler
If I had not bought the axle as a set with the gear ratio that I wanted, I would have sourced a van 14 bolt since it will bolt in to a half ton and is the same width as the front axle.
so the 14bff from a van is the same width as a srw d60 from a k30? would that be a 2wd van or a 4wd van, or does it even matter?
__________________
1986 Chevy K5 BLAZER Specs

Last edited by BuddyRammit; January 9th, 2007 at 08:04 PM.
BuddyRammit is offline   Reply With Quote
Old January 10th, 2007, 04:58 AM   #7 (Link to post)
Shiny Side Down
Points: 1,034,110, Level: 100 Points: 1,034,110, Level: 100 Points: 1,034,110, Level: 100
Level up: 0% Level up: 0% Level up: 0%
Activity: 0% Activity: 0% Activity: 0%
 
cbbr's Avatar
 
Name: Chad
Joined: September 2006
Location: In a swamp.
Posts: 9,876

Awards Showcase
MOTM 
Total Awards: 1

Default Re: Tech Tuesday: 14 Bolt Full-Floater

Width of 14 bolts is:

SRW
(single rear wheel truck)
67.5"

DRW
(dual rear wheel truck) 72"

C&C
(cab and chasis truck)
63.5"

Van 70"

The van width is about the same as a front D60, so it eliminates the need for spacers if you want them to be even (I am using spacers). The only real problem with a van 14bff, IMO, is that they come with odd gear ratios that 1-Ton axles from trucks don't use.
__________________
1990 Chevy Suburban Specs
cbbr is offline   Patriotic 4/6 - If it breaks, I can usually fix it. Reply With Quote
The Following 2 Users Say Thank You to cbbr For This Useful Post:
4x4 Mecca (January 10th, 2007), MrK5 (March 8th, 2007)
Old January 10th, 2007, 06:05 PM   #8 (Link to post)
NO MSG
Points: 74,486, Level: 39 Points: 74,486, Level: 39 Points: 74,486, Level: 39
Level up: 12% Level up: 12% Level up: 12%
Activity: 0% Activity: 0% Activity: 0%
 
BuddyRammit's Avatar
 
Name: Brian
Joined: October 2006
Location: Fontana, CA
Posts: 112
Default Re: Tech Tuesday: 14 Bolt Full-Floater

Quote:
Originally Posted by cbbr
The only real problem with a van 14bff, IMO, is that they come with odd gear ratios that 1-Ton axles from trucks don't use.
what ratios have you seen that come from a van?
__________________
1986 Chevy K5 BLAZER Specs
BuddyRammit is offline   Reply With Quote
Old January 11th, 2007, 08:14 AM   #9 (Link to post)
Points: 3,620, Level: 8 Points: 3,620, Level: 8 Points: 3,620, Level: 8
Level up: 97% Level up: 97% Level up: 97%
Activity: 0% Activity: 0% Activity: 0%
 
Joined: October 2006
Location: California
Posts: 7
Default Re: Tech Tuesday: 14 Bolt Full-Floater

Quote:
Originally Posted by Kudzu Crawler
I also have a 1986 CUCV 14 bolt. I bought it as a set with a Dana 60 front for $1700.

The military version is great since it comes with 4.56 gears and a Detroit, but it does take some work to put it in anything other than another one ton. You have to relocate the spring perches and shock mounts. If I had not bought the axle as a set with the gear ratio that I wanted, I would have sourced a van 14 bolt since it will bolt in to a half ton and is the same width as the front axle. I have seen these at my local pull a part for $100.

This axle is super strong and is a full floater. I would definetly recommed this as a an upgrade. I was able to put disc brakes with a parking brake on for under $500.

One of the main disadvantages to a 14 bolt is that the gears only go to 5.13 (I'm pretty sure). The other disadvantage is that this axle is HUGE. Mine (unshaved) sitting on 37'' MTR's gives me about 9.5'' of clearance under the pumpkin.
The van width 14ff is the same width as a D60 front but it won't bolt into a 1/2 ton without first moving spring perches and shock mounts.
__________________

4x4high is offline   Reply With Quote
The Following User Says Thank You to 4x4high For This Useful Post:
4x4 Mecca (January 15th, 2007)
Old January 11th, 2007, 10:26 AM   #10 (Link to post)
Shiny Side Down
Points: 1,034,110, Level: 100 Points: 1,034,110, Level: 100 Points: 1,034,110, Level: 100
Level up: 0% Level up: 0% Level up: 0%
Activity: 0% Activity: 0% Activity: 0%
 
cbbr's Avatar
 
Name: Chad
Joined: September 2006
Location: In a swamp.
Posts: 9,876

Awards Showcase
MOTM 
Total Awards: 1

Default Re: Tech Tuesday: 14 Bolt Full-Floater

Quote:
Originally Posted by BuddyRammit
what ratios have you seen that come from a van?

3.42 and 3.75 (not3.73) are the two that come to mnd. You won't see those on a truck 14bff.
__________________
1990 Chevy Suburban Specs
cbbr is offline   Patriotic 4/6 - If it breaks, I can usually fix it. Reply With Quote
Reply

Tags
14, bolt, fullfloater, tech, tuesday

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Copyright 4x4Mecca.com

SEO by vBSEO 3.2.0 RC5