PDA

View Full Version : narrowing a 9" rear end how?



bobbowtie
12-23-2007, 10:17 AM
Got a 9" big bearing ford rearend 55" wide but i need mine narrowed to 52" cad i do this and how? i have a lincoln pro 175 mig plasma cutter torches ahd bandsaw also all kinds of grinding stuff Any help would be app. thanks Bob

zapster
12-23-2007, 10:50 AM
Got a 9" big bearing ford rearend 55" wide but i need mine narrowed to 52" cad i do this and how? i have a lincoln pro 175 mig plasma cutter torches ahd bandsaw also all kinds of grinding stuff Any help would be app. thanks Bob


Your gonna need shorter axles first..
Take the ones out that are in there now..
Measure them..
Subtract 1.5" each and give the measurements to a axle shop and let them make new ones..

Cut off the bearing cups right at the axle tube..
Cut 1.5" off the tubes and re weld on the bearing cups..

Its best to do this with the new axles in place to line everything up..
Tack the cups back on..
Take the axles out and finish weld..
Its not that difficult..

...zap!

bobbowtie
12-23-2007, 10:56 AM
Your gonna need shorter axles first..
Take the ones out that are in there now..
Measure them..
Subtract 1.5" each and give the measurements to a axle shop and let them make new ones..

Cut off the bearing cups right at the axle tube..
Cut 1.5" off the tubes and re weld on the bearing cups..

Its best to do this with the new axles in place to line everything up..
Tack the cups back on..
Take the axles out and finish weld..
Its not that difficult..

...zap!
do i need any jig. to keep it in allingment when welding and how exact does it have to be

zapster
12-23-2007, 11:03 AM
do i need any jig. to keep it in allingment when welding and how exact does it have to be


Personally I have never used one..

Put the center section in the housing..
Press the bearings on to the axles..
Put the bearing cups on...
Assemble the axles into the centersection..
Tack the cups on and just make sure everything spins freely after tacking..
Take the axles out..
Then your good to go..

Finish weld..
Let cool completly..
Re assemble and your on your way!

The trick is to tack the cups on and make sure everything spins freely..
After that all is good..

...zap!

bobbowtie
12-23-2007, 11:17 AM
Personally I have never used one..

Put the center section in the housing..
Press the bearings on to the axles..
Put the bearing cups on...
Assemble the axles into the centersection..
Tack the cups on and just make sure everything spins freely after tacking..
Take the axles out..
Then your good to go..

Finish weld..
Let cool completly..
Re assemble and your on your way!

The trick is to tack the cups on and make sure everything spins freely..
After that all is good..

...zap!Thanks for the help zapster Bob

bobbowtie
12-23-2007, 11:22 AM
Thanks for the help zapster Bob
i am going to try to shorten my own axels w/my chop saw as i have 3" of spline and only need about 1"of spline to get all the side gears i have

zapster
12-23-2007, 11:42 AM
Yeah..
I was thinking of that..

Glad to hear the splines will be long enough..
Chopsaw will work and champher the ends after..
No sharp edges..
Take off as little as needed..
Go 1/4" at a time untill it fits....

...zap!

bobbowtie
12-23-2007, 11:55 AM
Yeah..
I was thinking of that..

Glad to hear the splines will be long enough..
Chopsaw will work and champher the ends after..
No sharp edges..
Take off as little as needed..
Go 1/4" at a time untill it fits....

...zap!
Thanks again

zapster
12-23-2007, 11:59 AM
Thanks again


Anytime..:cool:

...zap!

steve loving
02-13-2008, 08:34 PM
bob mittler bros has a kit for what your wanting to do

lewray
02-13-2008, 10:27 PM
Just a thought ....I know guys w/ those on the rear on the trail and never gave a thought of narrowing it. You really dont notice it....kinda advantage really. Trail use ofcourse.

Would you feel better if you just changed some back-spacing on the wheels?