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how hard to change a rear diff on a 2wd saf cos??

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Old 10-05-2006, 07:16 AM
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jamesers20004x4
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Default how hard to change a rear diff on a 2wd saf cos??

this might sound a really silly thing to say but, it feels like there is more power going to the passenger wheel than the drivers side??

hard to explain but it feels like the car, under moderate accelaration, is crabbin (if thats the right word to use!!) but i only notice when you take ya foot of the throttle it kind of pulls the front to the right?!?!?! but it really feels like its cos of the power??

that aint too good a description im sorry but its really hard to explain??

the diff has been whining for a while not too bad, must admit it sound quite cool!!

so how much and how hard for a bit of a novice to fit??
is it just socket set and axle stands?? or more difficult.

thanks peeps!!
Old 10-05-2006, 07:55 AM
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xr4x4rs
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depending if the torx bolts round or not

ive always found them a pain to be honest and always dropped the complete beam only to get to the top bolt lol

if you could use a set of ramps it would make it easier

other than that

its just driveshafts undone, 5 bolts if i remember correctly and the diff mount

doesnt sound a lot but when your lying on your back as ive said its a pain
Old 10-05-2006, 08:28 AM
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St3V3_C
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It sounds like you have worn bushes too.
Old 10-05-2006, 08:55 AM
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bushes?? at the back you mean?
Old 10-05-2006, 10:21 AM
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xr4x4rs
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yeah

could be main beam bushes but if you do these you may aswell replace the trailing arm bushes aswell

so whole beam has to bo dropped and taken apart
Old 10-05-2006, 10:27 AM
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do you think thats whats making the car feel weird when i take my foot off the gas?? ie pulling the front to the right???

if so how much would the kit cost??

cheers
Old 10-05-2006, 07:43 PM
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diff change can be a bitch of a job or can be easy.

i've done it a couple of times recently so can offer some advice

the long bolt through the bottom will probably be seized in. try and get that one out first of all (after removing prop shaft if you like)

to undo the bolts in the propshaft (15mm head) you can shove a bar through the UJ to stop it turning. undo one of the prop shaft centre bolts completely, and the other one a bit and then the propshaft can be dropped out of the way.

you need a t50 torx bit for the driveshaft bolts. they will probably be full of old grease, so clean that out of the heads before attempting to undo them so that the torx bit fits well and you don't round them off.

the beam needs supporting with axle stands, it's no good jsut having the car up on axle stands, as the beam will want to drop when you take the diff out.

support the diff with a trolley jack after you've got the long bolt out, and then you can remove the rubber mount of the back of the diff before taking out the 4 short bolts that hold the diff to the beam.

before putting the diff back on, run a tap down all 4 threads and take a round file to the holes in the aluminium where the long bolt goes through to make it easy to slide through.

hope that helps

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Old 11-05-2006, 07:28 AM
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jamesers20004x4
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you deffo help son, helped me decide to pay someone else to do it




anyone in the scots borders wanna help me change this diff???

sound like i may need some help if i try!!!!
Old 11-05-2006, 09:28 AM
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they'll be T45 or T40 torx bolts mate, much easier to round off
Old 11-05-2006, 09:37 AM
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Change it anyway if its whining bad, but i dont think the symptoms you decribe are caused by the diff personally, more likely to be play in the suspension bushes etc like already mentioned.
Old 11-05-2006, 10:04 AM
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gearboxman
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I drove one last week that did exactly what you describe...
Tyre pressure was low on the nearside rear. Pumped the tyre up, problem solved
Old 11-05-2006, 10:42 AM
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Originally Posted by gearboxman
I drove one last week that did exactly what you describe...
Tyre pressure was low on the nearside rear. Pumped the tyre up, problem solved

top banana

first thing when i leave work check tyre pressure....................
















will that stop the rear diff whining as well
Old 12-05-2006, 02:05 PM
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torx bolts
Old 12-05-2006, 02:58 PM
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Originally Posted by alanfordtw-15
torx bolts
it's easier to get the whole rear axle out than it is to fuck about with these if they get rounded off
the good news is that ford only do T45's now, so they shouldn't be that difficult to remove
Old 17-05-2006, 10:28 AM
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thats good. and when your putting them back replace them all with stainless hex bolts and sorted
Old 17-05-2006, 11:23 AM
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get a quaife in there or im gonna whip you BAD up crail

car fixed if you didnt see the post
Old 17-05-2006, 11:40 AM
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jamesers20004x4
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i saw she fixed!!!

the diff aint whining too bad, but by whats above i think ill be paying somone to do it for me

unless you would lend your expertise and help me change it
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