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post #1 of 4 (permalink) Old 05-24-07, 02:04 AM Thread Starter
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ZD Fairlane Diff upgrade.

G'day guys (and girls), I'd like to run a quick question by you all. I have a ZD Fairlane fitted with a borg warner single spinner shitter and my mate has given me his diff out of an XD Fairmont Ghia which I believe is LSD. Just wondering whats involved in bolting this into mine. Its a 2.9 cruising diff.

I'm pretty sure the diff's in these are wider then what will be suited to my car.

As far as offsets etc, I just have standard rims with hub caps (I'm not to sure if thats of any aid to you)

Any help will be much appreciated.
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post #2 of 4 (permalink) Old 06-17-07, 03:18 AM
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Re: ZD Fairlane Diff upgrade.

you are right fairmont ghia should be LSD but check the filler plug for "Slip Resistant Differential Fitted" tag.

ZD is the same shape as the XD i assume, so it should have the same diff and should bolt in without hassle. As long as drive shaft flange is the same.

I find it strange that the fairlane doesnt have LSD stock.. I just pulled a LSD out of a 93 fairlane. As they and fairmont ghias are the only falcons (88 onwards) that have LSD as standard other than XR models. I cant believe s pack EAs or XFs dont have them either. WTF

A few considerations for ya.

all the best mate
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post #3 of 4 (permalink) Old 07-12-07, 06:03 AM
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Re: ZD Fairlane Diff upgrade.

Yeah they are a wider assembly, 1.5 inches I think so check your wheel clearance with a load in the back. To check if its LSD, jack up back of car, trans in neutral, handbrake off and turn one of the wheels - if the other turns the same way its LSD, if it rotates in opposite direction, not LSD!
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post #4 of 4 (permalink) Old 07-15-07, 04:15 AM
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Re: ZD Fairlane Diff upgrade.

hi. xd diff is 2 inches wider than zd. the diff will bolt straight in though. if zd was origionally a 6cyl you may need to use u bolts, and diff mount plates from xd also. ( some xy/zd 6's still used a smaller diff tube diameter) uni joint will be different( if u still have stock zd uni in place) so, if your trans is c4, bw or toploader 4 spd, just use complete t/shaft out of xd wagon, van, ute or zj fairlane . the hand brake cable will need some work because zd was drum rear brake and xd fairmont ghia is disc brake rear. you will only be able to use stock offset 6" rims with max of 215 tyre or the wider diff will cause gaurd clearance probs. or you could get custom offset rims done as i have for my xr and put 9" rims and 265 tyres on with stock guards! cheers

Craig Johnston.
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email- cjperformance@lizzy.com.au
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