Topic: FITTING 33/12.50/15 TO DISCO1 (Read 9997 times)

greendisco123 · « **on:** July 29, 2006, 22:23:42 »

HI EVERYONE PLEASE COULD YOU HELP ME ,CAN ANYONE TELL ME WHAT I HAVE GOT TO DO TO FIT 33/12.50/15 TO MY DISCO 1 I HAVE PUT A 2" LIFT ON IT BUT I HAD 31/10.50/15 GRIZZLY CLAWS ON IT AND IT FOULD THE FRONT BUMPER ON FULL LOCK I AM IN THE PROCESS OF GETTING A BUMPER WITHOUT THE BOTTOM VALANCE SO HOPFULLY WONT GET THAT PROBLEM BUT JUST WONDERED IF ANY ONE HAD FITTED THEM TO THERE DISCO 1 AND WHAT ELSE I WOULD NEED TO DO THANKS JUSTIN.

extreme90 · « **Reply #1 on:** July 29, 2006, 22:34:05 »

get the grinder out and get a few cutting disks :P

greendisco123 · « **Reply #2 on:** July 29, 2006, 23:10:28 »

THANKS FOR THAT BIGGREENTHING I HAVE A GRINDER AND CUTTING DISCS WHAT DO I HAVE TO CUT NOT MY THROAT I HOPE [-o< :lol: ,LIKE I SAY WHAT DO I HAVE TO CUT AND IS IT A HARD JOB THANKS JUSTIN.

John T · « **Reply #3 on:** July 29, 2006, 23:49:36 »

I have 33x12.50's, I found I needed to fit the Australian type arches otherwise they would rub on full articulation. At first I did the 'camel' cut front and rear - this was OK 99% of the time

Without Arches - but with camel cut front and rear !

extreme90 · « **Reply #4 on:** July 29, 2006, 23:59:43 »

now thats a peeeeerty truck ! i want i want i want well greendisco if your fitting them size tyres, your goin have to cut out alot of your arch, but 1st u need a extended arch kit cuz they willstickout to far thus being illegal , not that any 1 cares mind u :lol:
danny

Budgie · « **Reply #5 on:** July 30, 2006, 12:19:51 »

To fit 33" tyres you will need to cut the arches, I've also gone for the Rangie Spares arches from Devon 4x4 (you can get others off ebay that are a wee bit cheaper).

Unless you go for wheel spacers or different ofset wheels then you'll loose the turning circle of the vehicle as the tyres will rub on the radius arms.

With 33" tyres the overall gearing of the vehicle is changed and it will struggle up hills, even of the motorway, and there won't be any more cruising at 40mph in 5th, you'll be in 4th gear and at 30mph you'll be in 3rd.
You can over come this by either changing the transfer box for one from a TD5 Defender which has a 1.44:1 ratio instead of the 1.22:1 of the standard Disco, or change the ring & pinion in both axle diffs for 4.11:1 ratio R&P's that Ashcrofts sell. Both fo these will bring the overall gearing back to about normal, altough the engine revs will increase slightly so your MPG will suffer a bit.

With you only having a +2" lift then extended bumpstops may also be needed to stop the tyres hitting the inner arches on full articualation.

This is my Disco with +3" lift, Defender transfer box & wheel spacers. I had to take about an inch off the winch bumper at the front wheel arches to match the larger arches and to stop the tyres hitting it when turning.

Compare this first photo with the second, +2" lift in the first and +3" in the second.

The bottom two photos are with +3" lift and show you the clearences on full articulation.

greendisco123 · « **Reply #6 on:** July 30, 2006, 15:14:07 »

THANKS JOHN T NICE DISCO WHAT WHEELS HAVE YOU GOT ON HER ARE THEY 8 SPOKE THANKS JUSTIN.

greendisco123 · « **Reply #7 on:** July 30, 2006, 15:18:02 »

NICE MOTOR BUDGIE THANKS FOR ALL THAT INFO THINK I MIGHT STICK WITH 31"10.50 AS I DONT FEEL COFIDENT DOING ALL OF THAT AS I AM NEW TO THE SEEN AND DONT WANT TO B-LLS IT UP MORE THAN I THOUGHT TO DO IT BUT THANKS ANYWAY JUSTIN.

John T · « **Reply #8 on:** July 30, 2006, 17:11:44 »

Quote from: "greendisco123"

THANKS JOHN T NICE DISCO WHAT WHEELS HAVE YOU GOT ON HER ARE THEY 8 SPOKE THANKS JUSTIN.

They're from http://www.straightforwardsupplies.co.uk/acatalog/shop.html

Great service :D plenty of off-set so you don't lose any stering lock.

bullfrog · « **Reply #9 on:** July 30, 2006, 21:43:00 »

All the discos I have seen on here are 3 doors.
Dont forget that fitting 33"s to a 5 door is quite a bit of work. Not just ozzy arches and a +2" lift.

Budgie · « **Reply #10 on:** July 30, 2006, 23:08:00 »

Quote from: "bullfrog"

All the discos I have seen on here are 3 doors.
Dont forget that fitting 33"s to a 5 door is quite a bit of work. Not just ozzy arches and a +2" lift.

Apart from the Rangie Spares 5-door arch kit being more work to fit than a 3 door kit, I can't think of anything else that differs between the two models? :?
Both have the same chassis, drivetrain & suspension setup, it's just that one has 2 more doors, how does that effect fitting of aset of 33" tyres? :-k

bullfrog · « **Reply #11 on:** July 31, 2006, 10:01:52 »

It means you have to remove either a large portion of the rear door and arch which is not quite a simple as just cutting out on a 3 door to fit spats OR raise the vehicle 4/5" as this is the height required to stop tyres catching on standard bodywork . :?
You could fit them with a 2" lift but they will catch the moment the vehicle leans or articulates.
I have 33"s on my RRC and have had them on a 3 door disco and the arches are the same size.
3 door rear arches are similar to the fronts on any LR where as 5 door rears involve cutting through the steel frame and ally skin then reatatching them and making sure the rear door still has a seal.
You also have to reatatch the rear wing higher as the mounts were where the arch was cut. :roll:

Bulli · « **Reply #12 on:** July 31, 2006, 12:06:45 »

Bullfrog you are right it is more work fitting the arches to a 5 door but other than that 33's will go in with a 2 inch lift.
even with 5 inch of lift if you didnt alter the arches the rear quarter would get eaten if you have any flex at all.
i have 35's in and only had a 2 inch lift at first.....ive since lifted it further to accomodate my suspension set up.

Budgie · « **Reply #13 on:** July 31, 2006, 13:30:40 »

Sorry Bullfrog, slight misunderstanding.

I thought that you were saying that, on top of the difficulty with fitting the arches to a 5 door, there were other differences between the 3 & 5 door model Discos that had to be taken into consideration in order to fit 33" tyres. #-o

I know about the problems with fitting the rear arches to a 5 door model and was just glad I had a 3 door!! :lol:

bullfrog · « **Reply #14 on:** July 31, 2006, 13:56:43 »

Thats cool, 8)
I am mainly doing it to my 5 door rangie as its less common.
I may well trim the arches back and fit ozzy or defender spats later.
Its just plucking up the courage to chop half the rear door out :shock:

Budgie · « **Reply #15 on:** July 31, 2006, 14:18:40 »

Quote from: "bullfrog"

Its just plucking up the courage to chop half the rear door out :shock:

Same goes for the 3 door, cos if you make a mistake then it's the whole side you have to replace!! :shock:

The Rangie Spares ones, from Devon 4x4, come with good instructions that allow for a little cutting errors though!

chuggaman · « **Reply #16 on:** July 31, 2006, 19:39:22 »

Quote from: "bullfrog"

It means you have to remove either a large portion of the rear door and arch which is not quite a simple as just cutting out on a 3 door to fit spats OR raise the vehicle 4/5" as this is the height required to stop tyres catching on standard bodywork . :?
You could fit them with a 2" lift but they will catch the moment the vehicle leans or articulates.
I have 33"s on my RRC and have had them on a 3 door disco and the arches are the same size.
3 door rear arches are similar to the fronts on any LR where as 5 door rears involve cutting through the steel frame and ally skin then reatatching them and making sure the rear door still has a seal.
You also have to reatatch the rear wing higher as the mounts were where the arch was cut. :roll:

not quite that much surgery to fit 5 door grp arches....the grp door sections cover the cavity cut out of the rear door.

but they are hard to fit !!!!!

a bit like a 3d jigsaw puzzle

mike

bullfrog · « **Reply #17 on:** July 31, 2006, 21:40:38 »

Are they flexi or fibreglass/plastic ?
I am opposed to the fibreglass/plastic ones as I dont want to go to the trouble of all the cutting only to smash on !
I am hoping to fit some defender ones as A they are cheaper to replace and B flex so should not brake as often.

Brains · « **Reply #18 on:** July 31, 2006, 22:22:05 »

Quote from: "bullfrog"

Are they flexi or fibreglass/plastic ?
I am opposed to the fibreglass/plastic ones as I dont want to go to the trouble of all the cutting only to smash on !
I am hoping to fit some defender ones as A they are cheaper to replace and B flex so should not brake as often.

They are mostly firbeglass that are on the market, and yes they do break easily i shud know

as you can see from the pic i had a small arguement with a tree about a month ago while i was driving my dads (doodlebug)
disco and

....

the tree won

andyb · « **Reply #19 on:** July 31, 2006, 22:23:06 »

Paidia4x4 do a set of fleixble archs in nitrile rubber. Designed for 90/110s but might be worth checking out.

Xtremeteam · « **Reply #20 on:** July 31, 2006, 22:33:14 »

please dont fit defender arches to a discovery or the style police will be called

Budgie · « **Reply #21 on:** August 01, 2006, 03:55:54 »

I did the same with one of my rear arches during the Belgium National last year.

A day's worth of glassing, rubbing down, filling and spraying and the arch is now stronger that before and you can't see where it was split! :D (Sorry no photo of the finished product. :( )

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AuthorTopic: FITTING 33/12.50/15 TO DISCO1 (Read 9997 times)