Mroffroaders Disco diff swap - the nisco

[mroffroader]

[quote="Reddo"]yeah - I was confused by this picture - but now I see what you have done.

http://i93.photobucket.com/albums/l60/t ... C_0084.jpg


35's will be good on the Nissan diffs given the lower gearing than Rover standard 3.54, and strong enough too.[/quote]

yea the nissan's are 4:11 ratio so apparntly they will return my gearing back to stock with 35's......and yea nissans are plenty strong enough to handle 35's i cant wait!!!!

[V8 Rangie]

looking good mate! you will be happy with the nissan diffs for sure. Mine are going great in the rangie..havn't had any troubles compared to the stock rover diffs

camo

[KiwiBacon]

Did you have any problems fitting the top A arm to the centred diff?

[mroffroader]

[quote="KiwiBacon"]Did you have any problems fitting the top A arm to the centred diff?[/quote]

nope....cut it off and welded it on top and added in one bit of plate to make it a square

[Turoa]

Did you have any problems fitting the top A arm to the centred diff?

Not really. I cut the tapered bit off the rover housing, and just tacked it (for now) on top of the nissan housing. I got the pinion flange within 3deg of the transfercase flange, so the d-shaft angles should be fine.

[Slunnie]

yeah - I was confused by this picture - but now I see what you have done.

http://i93.photobucket.com/albums/l60/t ... C_0084.jpg


35's will be good on the Nissan diffs given the lower gearing than Rover standard 3.54, and strong enough too.

yea the nissan's are 4:11 ratio so apparntly they will return my gearing back to stock with 35's......and yea nissans are plenty strong enough to handle 35's i cant wait!!!!

I'm pretty sure 4.1's match 33's and 4.3's match 35's.

[Reddo]

Yeah I think you are correct but 4.11s are close enough. Disco Dave has 36inch Simex and 4.11s and it is near enough to standard to drive. Standard being 29s on 3.54 diffs. Off road is totally OK, with most steep terrain being negotiated in second low range. So Nissan 4.11s with 35s will be very good - near enough to standard that it won't matter.

[tna racing]

yeah - I was confused by this picture - but now I see what you have done.

http://i93.photobucket.com/albums/l60/t ... C_0084.jpg


35's will be good on the Nissan diffs given the lower gearing than Rover standard 3.54, and strong enough too.

yea the nissan's are 4:11 ratio so apparntly they will return my gearing back to stock with 35's......and yea nissans are plenty strong enough to handle 35's i cant wait!!!!

I'm pretty sure 4.1's match 33's and 4.3's match 35's.

well for nissan diffs 4.625's match 35's and 4.3 r for 33's

[Slunnie]

well for nissan diffs 4.625's match 35's and 4.3 r for 33's

Not in a Rover.

Yeah I think you are correct but 4.11s are close enough. Disco Dave has 36inch Simex and 4.11s and it is near enough to standard to drive. Standard being 29s on 3.54 diffs. Off road is totally OK, with most steep terrain being negotiated in second low range. So Nissan 4.11s with 35s will be very good - near enough to standard that it won't matter.

Probably right. I run 4.11's with 33's on the road and 34/35's offroad and they are fine with both.

[cooter]

howd ya go withe the 8os springs?

[mroffroader]

[quote="cooter"]howd ya go withe the 8os springs?[/quote]

ah, never ended up doing it not enough money at this stage...may do it later though i ended up using 1" lift nissan fronts with spring spacers and on the rear we made the spring must a little higher off the diff and we used the 2" landrover lift springs in the rear. I dont have any money for new springs and shocks to suit

[tna racing]

well for nissan diffs 4.625's match 35's and 4.3 r for 33's

Not in a Rover.

Yeah I think you are correct but 4.11s are close enough. Disco Dave has 36inch Simex and 4.11s and it is near enough to standard to drive. Standard being 29s on 3.54 diffs. Off road is totally OK, with most steep terrain being negotiated in second low range. So Nissan 4.11s with 35s will be very good - near enough to standard that it won't matter.

Probably right. I run 4.11's with 33's on the road and 34/35's offroad and they are fine with both.

just saying.

[Slunnie]

howd ya go withe the 8os springs?

ah, never ended up doing it not enough money at this stage...may do it later though i ended up using 1" lift nissan fronts with spring spacers and on the rear we made the spring must a little higher off the diff and we used the 2" landrover lift springs in the rear. I dont have any money for new springs and shocks to suit

Does that leave the Disco sitting about 3" over standard?

[mroffroader]

[quote="Slunnie"][quote="mroffroader"][quote="cooter"]howd ya go withe the 8os springs?[/quote]

ah, never ended up doing it not enough money at this stage...may do it later though i ended up using 1" lift nissan fronts with spring spacers and on the rear we made the spring must a little higher off the diff and we used the 2" landrover lift springs in the rear. I dont have any money for new springs and shocks to suit [/quote]
Does that leave the Disco sitting about 3" over standard?[/quote]

I guess it probably does , I was given a brand new set of *suppsodly* 1" lift nissan springs, so i put them in the front with spring spacers top and bottom anyway theres quite a gap in between the rear housing and spring cup and i put a angle meter on the roof gutter and the car leans about 1 or 2 degrees to the front so its pretty much bang on and its definetly higer than what we started with so with a little more guard chop it will quite nicely fit 35"s .......thats when i can afford them of course

cheers
James

[... rick]

Any updates on this one guys?

[Turoa]

Any updates on this one guys?

It was finished and functional, with some bits that I was really not happy with, but he couldnt afford to pay for the engineering and to keep his road car and the disco on the road, so now he has sold it, sold the road car, and bought a suzuki escudo. No where near as cool, no where near as good offroad, doesnt sound as good but is better on road. The insurance will also be a heap cheaper.

I can add some pics of it mostly finished if you like?

[... rick]

Any updates on this one guys?

It was finished and functional, with some bits that I was really not happy with, but he couldnt afford to pay for the engineering and to keep his road car and the disco on the road, so now he has sold it, sold the road car, and bought a suzuki escudo. No where near as cool, no where near as good offroad, doesnt sound as good but is better on road. The insurance will also be a heap cheaper.

I can add some pics of it mostly finished if you like?

That would be cool!

[rusty_042]

yeah pitty he sold it look lke a fun weekender just wondering tho if he used standard nissan arm on the disco would that also mean u could do it on the rovers as well as im wanting to do a swap to nissans soon but cant find any decent build up threads with infomation

[Turoa]

yeah pitty he sold it look lke a fun weekender just wondering tho if he used standard nissan arm on the disco would that also mean u could do it on the rovers as well as im wanting to do a swap to nissans soon but cant find any decent build up threads with infomation

for the front, the standard nissan arms fit in fine. Use nissan bushes in the chassis end. The panhard has to be a rover/nissan hybrid one. We made up shock mounts that used the original land rover upper mounts. With standard nissan springs the castor needed correcting just a tad (with castor bushes). If you buy some arms with castor bushes in MAKE SURE THEY ARE AROUND THE RIGHT WAY. The ones which came with his nissan diffs were around the wrong way, and when we made plates to correct the castor, it got death shakes. Only noticed it when we took the radius arms out to try standard arms. Standard holes work fine.

On the rear, we used standard rover a frame and trailing arms, with the a frame cut off from the rover housing and fabricated to suit.

If you want to know my honest opinion, go salisbury rear, peg the front CW&P, and get some longfields.

[rusty_042]

yeah im looking at doing gq front with arb locken an upgraded axels n cv in the rear not so sure as due to driveling issues i may go 80 rear but hey who knows untill i see how bad the vib issues are
would perfer to use same model diffs tho

[V8 Rangie]

Nah don't go GQ rear.. I have in mine now but will have the 80 series fitted in the next few weeks :-)

The vibes are a pain in the arse.. trust me you will hate it

Camo

[rusty_042]

do u have any pictures of the mounting used for the rear also has anyone thought about using a cv drive shaft with the gq rear? that could fix the problem

[cooter]

every 1 i talked to said that the cv would not last

[rusty_042]

yeah front what i have heard its more of a lubrication thing as the cv would be sprun at such a high rate it would over heat an melt the grease which woulod then melt tthough the cv boot leaving it to cease up very Quickly
but i have heard of ppl that only use there cars for weekend running them for a while with no problem only highway driving is there problem

[rusty_042]

im also waiting to see how a mates conversion goes for drivline vibs as his runnin gq f&r with a rover/ cruiser shaft he has sed his yet to feel any vibes or have problems but it was only recently done an hasnt done alot of klms yet

[UrbanRedneck]

I have just completed a gq front and 80 rear conversion on mine first drive out of the garage sunday night and i am wrapped so far.
with the rear i used the original mountings for the trailing arms and cut everything else off put the spring mounts on and fabbed up new A frame bracket using the original tappered piece from the top. Then had to make up new brake lines to get them close to the diff (as original go round the mounts i cut off) so made them rover one end and toyota other end. The shock mounts are also cruiser as i was using cruiser shocks anyway(long travel).
The front is all gq and was quite easy except for the extractors had to re fab most of them to miss the tail shaft rrrrrrrr. I am also using the single brakeline setup from gq and made new line from the master cylinder which i also changed to later disco 2 outlet setup using one for the rear through the original proportion valve (just blocking the outlet for the front line) and the other for the front.
Front tail shaft needed shortening and bit of machining for the pinion flange to make reducer for the locator on the tail shaft and new holes drilling. and the rear was fine just machined the inside out for the locator and drilled new holes.
Then just had to fab up the panhard and the steering arm which were pretty easy as the original solid rangy arms fit very snuggly (with little help from sander) into the gq items making them very solid and welded them at the right lengths.
Hope this helps.

Cheers Damo

[rusty_042]

sweet thanks heaps mate do u have an pictures of the a frame mounting and coil mounts?
did u make new shock mounts ?currently i have the older set up one to the from an one to the back was looking at changing it to both front facing shocks with raised mounts like the rovertyrm ones

[UrbanRedneck]

no i didnt make new shock mounts on the 80 diff i used the 80 ones as i have the later setup with the shocks facing forwards.
The coil mounts i cut off the rangy diffs and rewelded them in place on the diff both front and rear. I will get some pics for you tonight and try posting them might not get them up till tomorrow.
Good luck with it.
Damo

[rusty_042]

sweet thanks man much appreciated i am going to be re welding f&r coil mounts so i retain the rangie springs least that way it the rights spring rate lol
im just waiting on the guy who did my mates one as i a shoit at welding