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[eddscott]

1999 XJ 4L

1. Need a new box and exhaust from the cat back.  Will any 4L rear box and pipe fit?

2. Need 2 new tyres on the back (fronts not got long either).  Is there a good place online to purchase from or am I better off going to local tyre fitters?

3. Although not very saggy I wanted to put 235 tyres on (its got 225 now) and I don't know if they'll foul the arches.  Wheres the best place to get replacement diesel rear leafs?  Would rather new than from a breakers.

Thanks

[tim_aka_tim]

The two well known sources for springs are Lighthouse and Mansfield 4x4.
Lighthouse have good service and quick delivery, so come highly regarded. Not used Mansfield myself, but other have no complaints.

Lighthouse 01953 681237

Mansfield www.mansfieldmotorsltd.co.uk 01206 396644

[Mike Pavelin]

Ideally replace all 4 tyres at once. Otherwise you will have trouble with shifting the transfer case due to the slightly different rolling radius of worn versus new causing driveline windup. You'll get a better deal on 4 anyway. All the tyre shops do price matching these days so shop around.
Look on Ebay for a rear box, I've seen them for about 50 quid.

[Dave69]

there is a guy on ebay that sell the std exhaust for just under £40 and very quick delivery. get all 4 tyres swapped as one set, cost is dependable on brand and your pocket prices are £35 a corner upwards. replacement rear springs, ring lightouse and get the diesel ones 1" higher and you will need bushes as well. next day delivery for them in the postage

[xjlee]

If your going for diesels go for the heavy duty spec ones, there are 5-leafs in a pack ive got them on mine with some lift blocks. You can run a lifting block underneath them, say 1" or 1.1/4, without no harm to them as there very rigid, they do give a firm ride but if you got stuff in the boot etc then it just takes the edge off them and you still get plenty of flex. Spring wrap isn't much of an issue in my experience with these where as standard ones get butchered after a bit of use with blocks :twisted:

[eddscott]

Thanks for the advice.

To be honest, I don't fancy doing the rear leafs myself.  Looks too much of a job for my driveway and weekend toolkit.

Might see if I can get a friend with more space and tools to help but if not would most garages do the job?  I've searched on here regarding it and it sounds like quite a job.

[tim_aka_tim]

Many garage will do it for you, but if the bolts are really rusted, they can take ages to get off and thus eat away at your money. Even the cheapest garage will charge you £40+vat per hour. It could take 4 hours or more just to remove the 2 rear springs. Then another two hours to re-drill the rear upper shock mounts (they always break). You'll easily have to pay for 10 hours labour (probably more).

So, if you can, best to do it yourself, or find a mate to help.

[eddscott]

Well, I went to get new tyres today.  Getting the rears this week and the front next.  

Slight problem in that the security nut thingy snapped off so the wheels wouldn't budge. Pish

Went to a garage recommended by tyre people and they took all 4 security bolts off for me.  Now I need 4 replacement ordinary bolts.

Going back tomorrow to finally get the tyres changed.  

Whilst at said garage, one chap seemed to know Jeeps as his mate has one and they've done lots of work on his.  I asked about the rear leafs and they said they'd give it a go and give me a "good" price.  

They will also do a 'box fluid change and any other little snags they find.  They went as far as to say that if my 'box turns out to be failing, if I source a working item they could do it in a day no probs.  To be honest I think they are more mechanical minded engineers as they do tractors and large vehicles.

So yes its going to cost more but they seem undaunted and know what they are doing - better them then me without the right tools on the driveway with the neighbours looking on knowing I haven't a clue

[eddscott]

Sorry for yet another question but will all 4.0 exhausts fit?

Mines a 99.

[Dave69]

i bekieve all the xj silencers fit all xj models, the only difference will be the rear hangers which might need to be bent slightly to suit the vehicle

[tag]

Yeah, what dave said,   exhaust code  xch3..............

[Dave69]

one note with silencers the very last strap hanger is in the right position to corode. so when you come to take it off it might break then the bolts might be siezed in place  so a pita to get out.

[eddscott]

OK, cheers for the warning.  I'm spraying all the rear leafs in readiness for the the diesel replacements so I'll make sure the exhaust bolts get a good soaking too.

[Dave69]

give them a damm good soaking everday to make life easier, but this comes with no guarantees

[demonicwillow]

Did my leafs last week... took about an hour each side...was easier than i thought.

Dmw  

[Bubba]

i remember pair of brothers who tooks best part of 6 weeks to change rear springs on a xj

[eddscott]

Still haven't got the rear leafs yet.

If I get diesel ones for my petrol XJ, will i have to raise the front?  been told the diesel ones will raise the rear 1" over standard.  

Its not like its sitting on its behind

http://www.birtydastardsjeepclub.com/fo ... php?t=6517

But the direction of the leafs on the right of the wheel (as you look face on) curves downwards.


Just as a complete aside rather than a new thread - is it possible to alter the air/fuel on a 4.0.  It just seems to be running quite rich.

The exhaust still blows a bit where the cat connects to the DP so not sure if thats affecting it - sorting tomorrow with yet more new clamps and exhaust putty.

[tim_aka_tim]

Just as a complete aside rather than a new thread - is it possible to alter the air/fuel on a 4.0.  It just seems to be running quite rich.

The fuel system is computer controlled, so no. A K&N will allow more air in, but the ECU will compensate for it.

[eddscott]

OK,

Is it worth getting a K&N panel?

I had a K&N panel on my Impreza to help it breath a bit better once it was mapped.

Not sure about induction kits if MAF sensors are fragile and pulling in hot engine air rather than cold air.

[tim_aka_tim]

OK,

Is it worth getting a K&N panel?

I had a K&N panel on my Impreza to help it breath a bit better once it was mapped.

Not sure about induction kits if MAF sensors are fragile and pulling in hot engine air rather than cold air.

A great many Jeepers run K&Ns. Simply from a value point of view, one K&N is worth many paper filters. Driving round in the dust and mud, filters can get clogged quickly, and the K&N is easy to clean.

Induction kits aren't uncommon for Jeeps, but there's limited cold air available under a 4.0 bonnet, cus there's no room.

BTW, your spring question - getting TD springs will make the back end slightly higher, but I wouldn't worry about it. See how you like it, and if you don't like, then www.explorerprocomp.co.uk will sell you some 1" spacers (quote Birtys for 10% discount).

[greggmo]

we have for sale a set of td springs and front pucks to do a budget lift if you are interested mate they are in good condition. they just came off teds xj as we have fitted a rustys lift to it now. £125 and its all yours.