Advertisement
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Home Who's Online Today's Posts HP Calculator CompD Gift Shop Mark Forums Read
Go Back   Competition Diesel.Com - Bringing The BEST Together > The Starting Line > Competition Vehicle Build Tech > Chassis, Suspension and Driveline
Register Members List Timeslips EFI Live Library Invite Your Friends FAQ Calendar Mark Forums Read

Closed Thread
 
Thread Tools
Old 08-22-2011, 05:06 PM   #1
GOT-Torque
 
GOT-Torque's Avatar

Name: GOT-Torque
Title: is
Status: Not Here
Join Date: Jul 2007
Location: Falls City, NE
Member`s Gallery
Posts: 5,284
F106 Steering axle - hp limit

At what point do you start to see failures up front with the stock 19 spline F106 axle shafts?

Planning on using a F106 for my ODL 3.0 truck build.
__________________
"Enjoy the little things in life, because one day you will look back, and realize they were the big things"

EATSOOT.com
 
Old 08-23-2011, 08:08 AM   #2
nick2001
 
nick2001's Avatar

Name: nick2001
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Northeast Wisconsin
Member`s Gallery
Posts: 314
Anyone? I have a 106 steer waiting to go under my puller too
 
Old 08-23-2011, 08:40 AM   #3
GOT-Torque
 
GOT-Torque's Avatar

Name: GOT-Torque
Title: is
Status: Not Here
Join Date: Jul 2007
Location: Falls City, NE
Member`s Gallery
Posts: 5,284
what is your flange to flange measurement on your f106?

I did some measuring last night, stock D60 is 71", F106 with SCS hubs is 96" I think. With 20" wide wheels and cepeks would probably be okay, but with 10 or 12" wide wheels and 35/12.5/16's the entire tire is going to be outside the truck fender. Unless SCS makes different hubs with the flange set back inwards farther...
__________________
"Enjoy the little things in life, because one day you will look back, and realize they were the big things"

EATSOOT.com
 
Old 08-23-2011, 07:48 PM   #4
nick2001
 
nick2001's Avatar

Name: nick2001
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Northeast Wisconsin
Member`s Gallery
Posts: 314
I did some rough scaling the other day, and my thought was to shorten the long side axle to match the factory short. That way Id be able to use a stock short side replacement for breakage, and in the future Id have "custome axles" but they would be interchangeable side to side.

The only downfall I have with this idea is that the pumkin will be on center. This is going to cause issues with ride height. I wasnt planning on lifting the front, but it may have to be. The engine is out of my truck right now, so oil pan clearance is a guess for now. If you have any ideas for this id be intrested.

On another note, my 106 has warn manual locking hubs. Anybody have any info on them?
 
Old 08-23-2011, 07:53 PM   #5
BowtiedCTD
 
BowtiedCTD's Avatar

Name: BowtiedCTD
Title: CHIVE ON
Status: Not Here
Join Date: Sep 2006
Location: Iowa
Member`s Gallery
Posts: 831
There is a Gasser pulling running around here with center F106s fron and rear and the truck is not far off from factory height. Granted its a 72 Chevy.
__________________
CompDEX
LBDP
1996 P24V BUILD THREAD
 
Old 08-23-2011, 09:55 PM   #6
PRINCETON_JAKE

Name: PRINCETON_JAKE
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Princeton Minnesota
Member`s Gallery
Posts: 1,125
on most of the rockwell axles me and freinds use in mud trucks you can remove the hub, flip it around, then pound out the studs and flip them. that will narrow the wms about 10" i think
__________________
silver 2006 ram 2500 4x4, crew cab short box, 48RE auto with "stuff" done, 5.9 with more "stuff" done
 
Old 08-27-2011, 10:23 PM   #7
RyanB
 
RyanB's Avatar

Name: RyanB
Title: Too Much Time
Status: Not Here
Join Date: Aug 2006
Location: Southern Ontario, Canada
Member`s Gallery
Posts: 977
Quote:
Originally Posted by nick2001 View Post
I did some rough scaling the other day, and my thought was to shorten the long side axle to match the factory short. That way Id be able to use a stock short side replacement for breakage, and in the future Id have "custome axles" but they would be interchangeable side to side.

The only downfall I have with this idea is that the pumkin will be on center. This is going to cause issues with ride height. I wasnt planning on lifting the front, but it may have to be. The engine is out of my truck right now, so oil pan clearance is a guess for now. If you have any ideas for this id be intrested.

On another note, my 106 has warn manual locking hubs. Anybody have any info on them?
Whats the issue with the pumpkin being centered? turn the pan around and use a short sump....thats what our selves and all the tube frame trucks do! works great!
__________________
2009 Tube Chassis Super-Mod Dodge
 
Old 08-28-2011, 02:46 PM   #8
j-rod

Name: j-rod
Title: Up to no good
Status: Not Here
Join Date: Jun 2008
Location: PA
Member`s Gallery
Posts: 3,628
Do you guys have the FDS75 with coarse spline axles or are you doing the 106/military hybrid? Most of the guys that I have talked to are running the fine spline FDS75 or running the military hubs on a 106 with the fine spline military axles.

The 106 only has 1.75" diameter shafts...I can't see them lasting very long up front with a lot of weight and only 19 splines. The extra 1/4" diameter will help over the 60 stuff, but I can't see it being much better.
__________________
Jared

14 CC LB
99 QC LB
01 TDI
 
Old 08-28-2011, 03:20 PM   #9
zstroken
 
zstroken's Avatar

Name: zstroken
Title: For $$$ your name here
Status: Not Here
Join Date: Sep 2006
Location: Western Michigan(by the lake)
Member`s Gallery
Posts: 23,151
Quote:
Originally Posted by j-rod View Post
Do you guys have the FDS75 with coarse spline axles or are you doing the 106/military hybrid? Most of the guys that I have talked to are running the fine spline FDS75 or running the military hubs on a 106 with the fine spline military axles.

The 106 only has 1.75" diameter shafts...I can't see them lasting very long up front with a lot of weight and only 19 splines. The extra 1/4" diameter will help over the 60 stuff, but I can't see it being much better.
I think the axle will hold plenty of hp, no comparison tto the weight on the rears. That .25 diameter adds a decent upgrade in strength.
__________________
2008 4x4 Megacab, 68RFE
97 Dodge gone....
24V P-Pump Mafia member #1(retired)

Thanks to Mumau Diesel, Goerend Transmission, Northeast Diesel Service!
 
Old 08-29-2011, 08:51 AM   #10
nick2001
 
nick2001's Avatar

Name: nick2001
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Northeast Wisconsin
Member`s Gallery
Posts: 314
Yes, Mine is a fds75 19 spline. I plan on giving it what I got and crossing my fingers it will hold out till I can throw some cash at it. I wasnt to worried about the weight...(it is the weight) Has anyone tried running 19 splines?
 
Old 08-29-2011, 09:33 AM   #11
RyanB
 
RyanB's Avatar

Name: RyanB
Title: Too Much Time
Status: Not Here
Join Date: Aug 2006
Location: Southern Ontario, Canada
Member`s Gallery
Posts: 977
You would be supprised on these 4x4's running cut tires, how small of a front end you can get away with running. There is a Grand National truck running out in Quebec that has pulled in my area in the past that is running a custom 9" front, and it lives with out problems. In our class, there is a truck running a stock D70 front in our Super Mod class, and we are building our truck with a custom D80 up front.

The only major strees on the front end is probably in the first 50 or so feet and that is also pretty minimal.
__________________
2009 Tube Chassis Super-Mod Dodge
 
Old 08-29-2011, 09:52 AM   #12
GOT-Torque
 
GOT-Torque's Avatar

Name: GOT-Torque
Title: is
Status: Not Here
Join Date: Jul 2007
Location: Falls City, NE
Member`s Gallery
Posts: 5,284
One of the mod trucks at Schieds was running a D70HD up front with D60 knuckles welded on. Surprised me a bit.

Most of the 3.0 class still had the D60 up front and F106's in back.
__________________
"Enjoy the little things in life, because one day you will look back, and realize they were the big things"

EATSOOT.com
 
Old 09-12-2011, 07:07 AM   #13
Fordper4mance

Name: Fordper4mance
Title: Rookie
Status: Not Here
Join Date: Aug 2009
Location: Ohio
Member`s Gallery
Posts: 17
If anyone else is looking for this front end I have one in the classifieds.
 
Old 11-20-2011, 07:57 PM   #14
Cummin_un_glued
 
Cummin_un_glued's Avatar

Name: Cummin_un_glued
Title: Too Much Time
Status: Not Here
Join Date: Sep 2007
Location: Ash Flat Arkansas
Member`s Gallery
Posts: 785
i have a lead on one of these FDS75 axles and the guy says he will put a 6.20 chunk in it for me but i havnt got to see any pics of it yet. i have a few questions about them.

are they all disk brake and what size is the rotor on them? can the hubs be flipped like a 2.5 ton top load rockwell? looks like the factory rotors would have to be cut off to do so but didnt know if the bearings would allow for it anyways or is the only option to narrow the housing and center the diff?
 
Old 12-02-2011, 07:22 PM   #15
j-rod

Name: j-rod
Title: Up to no good
Status: Not Here
Join Date: Jun 2008
Location: PA
Member`s Gallery
Posts: 3,628
Quote:
Originally Posted by Cummin_un_glued View Post
i have a lead on one of these FDS75 axles and the guy says he will put a 6.20 chunk in it for me but i havnt got to see any pics of it yet. i have a few questions about them.

are they all disk brake and what size is the rotor on them? can the hubs be flipped like a 2.5 ton top load rockwell? looks like the factory rotors would have to be cut off to do so but didnt know if the bearings would allow for it anyways or is the only option to narrow the housing and center the diff?
No they aren't all disk brakes, and I highly doubt you can flip the hubs - although I have not tried it. I wound up cutting at least a good 12" out of the driver side of the housing.
__________________
Jared

14 CC LB
99 QC LB
01 TDI
 
Old 12-02-2011, 07:34 PM   #16
Cummin_un_glued
 
Cummin_un_glued's Avatar

Name: Cummin_un_glued
Title: Too Much Time
Status: Not Here
Join Date: Sep 2007
Location: Ash Flat Arkansas
Member`s Gallery
Posts: 785
yeah i called performance pros a couple days after that post, they said somewhere around 14" to center it
 
Closed Thread

Thread Tools

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 -5. The time now is 08:47 AM.

 


Powered by vBulletin
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2006 - 2024, CompetitionDiesel.com
all information found on this site is property of www.competitiondiesel.com