Hi everyone,
About three years ago i purchased a 9 inch diff housing and two 31 spline axles to suit which came from a small truck apparantly.
A couple of days ago i rang a local company to get it shortened, have torana mounts put on and ends put on to take my vs disk brakes. The guy told me that i would need new axles as the standard ones will be too thick to get past my brakes. All up i got a quote of $1650 if i supply the housing.
What should i do? Change to different brakes, or throw the current axles away and get the new ones, or cut my losses and go for a 10 bolt. I'll be running a fuel injected 400 chev with a turbo 350 behind it.
Any help would be great.
Thanks
Tom
What to do about my 9 inch diff
Started by
_mowie_
, May 09 2009 03:08 PM
23 replies to this topic
#2
_kingy_
_kingy_
-
- Guests
Posted 09 May 2009 - 03:13 PM
Id change the brakes, but im struggling to see why it cant be made to work.
if there really is no way, for those dollars you may as well convert to floaters and keep your brakes.
And find a new diff man...
if there really is no way, for those dollars you may as well convert to floaters and keep your brakes.
And find a new diff man...
#3
_mowie_
_mowie_
-
- Guests
Posted 09 May 2009 - 03:15 PM
Id change the brakes, but im struggling to see why it cant be made to work.
if there really is no way, for those dollars you may as well convert to floaters and keep your brakes.
And find a new diff man...
Thats the thing they are quite reputable.
thanks for your help though.
Tom
#4
_ass308_
_ass308_
-
- Guests
Posted 09 May 2009 - 03:22 PM
haveing had vr-vs breaks on my nine inch,i cant see why they wouldnt fit.the guy that did the work stuffed the vr-vs set up,up.so i changed em to skyline breaks
this is the bracket that holds my skyline caliper to my 9 inch.
i cant see why the hole in the middle couldnt be made big enough to take your axels.
the brakets,stone guards,calipers,reconditioning the calipers cost $1400.and id reckon syline brakes are heaps better than vs ones
this is the bracket that holds my skyline caliper to my 9 inch.
i cant see why the hole in the middle couldnt be made big enough to take your axels.
the brakets,stone guards,calipers,reconditioning the calipers cost $1400.and id reckon syline brakes are heaps better than vs ones
#5
_mowie_
_mowie_
-
- Guests
Posted 09 May 2009 - 03:28 PM
haveing had vr-vs breaks on my nine inch,i cant see why they wouldnt fit.the guy that did the work stuffed the vr-vs set up,up.so i changed em to skyline breaks
this is the bracket that holds my skyline caliper to my 9 inch.
i cant see why the hole in the middle couldnt be made big enough to take your axels.
the brakets,stone guards,calipers,reconditioning the calipers cost $1400.and id reckon syline brakes are heaps better than vs ones
Ive rebuilt my calipers but judging by the size of that hole im pretty sure they would fit through that.
Thanks
#6
_ass308_
_ass308_
-
- Guests
Posted 09 May 2009 - 03:58 PM
i pretty sure the hand brake shoe is inside the rear disk on the vr-vs brakes
the backing plate that holds the hand brake shoe, was between the end of the axle and this 9 inch cap.
it also has a big whole in the middle.all u need to do is enlarge the hole on the plate, that holds the hand brake shoe to take the axle.
i also have the enclosed type bearing.
the backing plate that holds the hand brake shoe, was between the end of the axle and this 9 inch cap.
it also has a big whole in the middle.all u need to do is enlarge the hole on the plate, that holds the hand brake shoe to take the axle.
i also have the enclosed type bearing.
#7
_Squarepants_
_Squarepants_
-
- Guests
Posted 09 May 2009 - 04:04 PM
Or maybe the spigot on the end of the axles could be turned down???
I would be getting another opinion from a different shop.
I would be getting another opinion from a different shop.
#8
_scottya!_
_scottya!_
-
- Guests
Posted 10 May 2009 - 08:01 PM
Sounds unusual, i got 35 spline axles in my 9 inch with VN brakes.
Would definately be getting second opinion.
Would definately be getting second opinion.
#9
_mowie_
_mowie_
-
- Guests
Posted 10 May 2009 - 08:18 PM
Are those original ford axles though. i have the original ones from the factory.
I'll be ringing the differential places listed in street machine. If it is ok with those axles ill just take the housing in and tell them to do it then the axles at a different stage.
Cheers for your help.
Tom
I'll be ringing the differential places listed in street machine. If it is ok with those axles ill just take the housing in and tell them to do it then the axles at a different stage.
Cheers for your help.
Tom
#10
_scottya!_
_scottya!_
-
- Guests
Posted 10 May 2009 - 08:44 PM
would be cheaper buying 28 spline billet axles to suit, would also be stronger than the 31 spline standard ford axles. Yours would
be F100 axles.
Certainly get another opinions.
be F100 axles.
Certainly get another opinions.
#11
_mowie_
_mowie_
-
- Guests
Posted 11 May 2009 - 12:07 PM
Ok, so i just called another diff place and they quoted me $350 to shorten the housing and put torana mounts on, 150 each axle to shorten and change stud pattern to hq, then said he would have to buy some end pieces to adapt to the vs brakes so looks like the first place was full of it.
i'm going to call another place just to be sure.
Tom
i'm going to call another place just to be sure.
Tom
#12
_scottya!_
_scottya!_
-
- Guests
Posted 11 May 2009 - 01:11 PM
Hi Tom, Thats sounds more in the ball park. Just enquire about putting the housing on some sort of boring bar just to see if the housing
is running true. Not uncommon for a old housing to be running 1/2 inch out of true line from one tube end to the other. Will save
a lot of problems in the long run.
Just a quick question, is it a big tube F100 housing or a XA onwards housing ?
cheers scott
is running true. Not uncommon for a old housing to be running 1/2 inch out of true line from one tube end to the other. Will save
a lot of problems in the long run.
Just a quick question, is it a big tube F100 housing or a XA onwards housing ?
cheers scott
#13
_mowie_
_mowie_
-
- Guests
Posted 11 May 2009 - 01:23 PM
to tell you the truth scott i have no idea. What is the difference? I would love to be able to run out the back and measure it but its in Swan Hill and im in Geelong 4 hours away.
Thanks for all of your help.
Tom
Thanks for all of your help.
Tom
#14
_scottya!_
_scottya!_
-
- Guests
Posted 11 May 2009 - 04:53 PM
Hi Tom, I dont have a picture of the big F100 housing. The housing in this picture is basically a standard 9 inch housing.
You will notice the centre housing is quite narrow where it tapers down to the tubes.
Basically the big housing is considerably wider in the centre housing where it tapers down to the tubes.
The area i am talking about is where the top trailing arms are mounted.
would be alot of clearance issues with the up and down movement of the upper contol arms.
See if you can get a pict. of your housing so you can post it up.
cheers scott
You will notice the centre housing is quite narrow where it tapers down to the tubes.
Basically the big housing is considerably wider in the centre housing where it tapers down to the tubes.
The area i am talking about is where the top trailing arms are mounted.
would be alot of clearance issues with the up and down movement of the upper contol arms.
See if you can get a pict. of your housing so you can post it up.
cheers scott
#15
_mowie_
_mowie_
-
- Guests
Posted 11 May 2009 - 07:19 PM
Cheers scott.
Next time im home ill have to have a look.
Thanks for your help.
Tom
Next time im home ill have to have a look.
Thanks for your help.
Tom
#16
_mowie_
_mowie_
-
- Guests
Posted 17 May 2009 - 07:18 PM
Hi Scott,
I was home over the weekend and took some photos of the diff.
Cheers
Tom
I was home over the weekend and took some photos of the diff.
Cheers
Tom
#17
wot179
-
- Members
-
- 6,784 posts
Green Eggs and Spam
- Name:Jesus Bloody Christ
- Location:Sunny Santa Maria
- Car:Goon
- Joined: 06-February 09
Posted 17 May 2009 - 07:38 PM
I could be wrong,but that housing looks like it is out of a tank fairlane(59-61).Check the width,if its going in an LH it will be pretty close.
The axels in those early diffs ,while not crap,are probably the weakest 9inch axle.If you decide not to use it and go with a later housing,those early ones are REAL popular with the nostalgia hotrod crowd.You could get good coin for it.
The axels in those early diffs ,while not crap,are probably the weakest 9inch axle.If you decide not to use it and go with a later housing,those early ones are REAL popular with the nostalgia hotrod crowd.You could get good coin for it.
#18
_mowie_
_mowie_
-
- Guests
Posted 17 May 2009 - 08:26 PM
Interesting..... how much do you think they would fetch?
#19
wot179
-
- Members
-
- 6,784 posts
Green Eggs and Spam
- Name:Jesus Bloody Christ
- Location:Sunny Santa Maria
- Car:Goon
- Joined: 06-February 09
Posted 17 May 2009 - 08:36 PM
It would depend on whether you still have all the original brakes and backing plates.They have massive brakes.I sold one about 10 years ago for $600.It had an open 3.0 center in it and was complete.Stuff like this has not got any cheaper.
But I may be wrong on the ID.Measure it up and see.Mine was under an EJ and was not shortened.LHs are only about an inch or so widerthan an EJ,from memory.
But I may be wrong on the ID.Measure it up and see.Mine was under an EJ and was not shortened.LHs are only about an inch or so widerthan an EJ,from memory.
#20
_memorylane-spare-parts_
_memorylane-spare-parts_
-
- Guests
Posted 18 May 2009 - 07:51 AM
Sorry to tell you that diff that you have is from a mid 70s f100 not from a tank fairlane look at the mounts are on the top of the housing but you mite still get good money for it as it has a old school hat on itInteresting..... how much do you think they would fetch?
#21
_Squarepants_
_Squarepants_
-
- Guests
Posted 18 May 2009 - 04:31 PM
The upper mounts on this one...Hi Tom, I dont have a picture of the big F100 housing. The housing in this picture is basically a standard 9 inch housing.
You will notice the centre housing is quite narrow where it tapers down to the tubes.
Basically the big housing is considerably wider in the centre housing where it tapers down to the tubes.
The area i am talking about is where the top trailing arms are mounted.
would be alot of clearance issues with the up and down movement of the upper contol arms.
See if you can get a pict. of your housing so you can post it up.
cheers scott
Are they the modded HQ trailing arm style that I've been reading about in other threads?
#22
wot179
-
- Members
-
- 6,784 posts
Green Eggs and Spam
- Name:Jesus Bloody Christ
- Location:Sunny Santa Maria
- Car:Goon
- Joined: 06-February 09
Posted 18 May 2009 - 04:54 PM
Sorry to tell you that diff that you have is from a mid 70s f100 not from a tank fairlane look at the mounts are on the top of the housing but you mite still get good money for it as it has a old school hat on it
Good spotting Darryl.
I must be going blind or something.
#23
_Bomber Watson_
_Bomber Watson_
-
- Guests
Posted 18 May 2009 - 09:59 PM
BTT, i have 31 spline axles going through commy disk brakes no worries....
Cheers.
Cheers.
#24
_mowie_
_mowie_
-
- Guests
Posted 19 May 2009 - 11:32 AM
BTT, i have 31 spline axles going through commy disk brakes no worries....
Cheers.
Thanks Bomber,
Are they original axles or are they billet ones?
Thanks
Tom
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users
