Thread: GQ Nissan Patrol Diffs into a Discovery

Well, since I never seem to take an pictures of the stuff I have done - i thought that I would show all my patrol conversion to my 96 Discovery.
I am pretty much over Rover diffs and I can't understand spending money on something that will not suit me.
This car will be driven pretty hard and probably raced next year
As I see it, the benefits outweigh the disadvantages (which is only one - loss of about 25mm ground clearance)
So you get - HEAPS bigger brakes, HEAPS stronger diffs, HEAPS stronger Axles, HEAPS bigger tail shafts, 6 Stud wheels which open up many more sizing and offset opportunities, 50mm track increase

All of this will be done in my spare time, but should be completed by the end of June / early July. I've just started my exams at uni, so not much happening this week.

This will be a conversion that will be bolt in to the Disco chassis - no chassis welding required.
Will also be engineered....

Anyway, it all started by buying a set of Diffs - in this case I managed to but a set of 3.9 ratio GQ patrol axles for $450 with all control arms, steering arms and both tail shafts. Whilst I was initially planning to install 80s Land Cruiser Diffs, these came up at a price I couldn't refuse.
The Land Cruiser conversion would probably be better, but the front is much more difficult due to different control arm spacings and eyes instead of pins.
I am installing adjustable lower control arms with the rear centered diff so I can set the pinion and transfer case flanges parallel to suit my suspension set up.
The standard A Frame will be used as well.

The conversion will use altered GQ Tail shafts with adapter spacers at the transfer case as they are also huge compared to the Rover items.

I will get a steering arm & pan hard rod made professionally once is all done.

Whilst I have everything from under the car, I am going to also install 4" longer braided brake hoses I have, and also the EFS Extreme shocks (to suit 3" lifted Land Cruiser).
These are VERY similar in length to the LRA Bilstiens, but the rear shocks are Pin (top) and eye (bottom).
To fix this I am making different to shock mounts, then using the GQ lower mount to suit the pin in the correct location.

Here are the shocks


Shock next to a standard Disco item (they are soooo much bigger its not funny)

Here are my new adjustable control arms next to a standard RR arm


Here is the GQ housing with the rear with all brackets removed


Brackets -





I started the other night and hope to have the rear diff set up tomorrow.

I will need new seals for the rear diff, new solid brake lines (which i will get made to suit disco lines) then also the small flexible hoses to the calipers.
I'll update this thread with pics when I've got time, but other wise i'll update it verbally.

Thats about it for the moment - I'm off to the pub

Cheers
Dave.

Couple of Pics

Diff guard -


Front in -


Rear A-frame tacked -


A Frame mount -


Rear Diff -