Home Forum Gallery Support  
Register FAQ Advertisers Search Today's Posts Mark Forums Read

Go Back > >


GT40 Enthusiasts Club Forum for the GT40 Enthusiasts Club and Fortyfication

Thread Tools Display Modes
Old 27th January 2012, 02:16 PM   #1
mickky3's Avatar
3 Tenths
United Kingdom
Join Date: Aug 2009
Location: Hampshire UK
GT40: building my own
Posts: 332
Inverting Renault Gearbox

Im want to invert the Renault gearbox, for my GT 40, and I understand there is an article that someone wrote about doing the conversion.

I purchased the Back Issue CD from Tony, Ive just spent 2 hours looking through the back issues, but i cannot find the article. Does anyone know which magazine the article was in.

I hope someone can help me...

thanks in advance..

mickky3 is offline   Reply With Quote
Old 27th January 2012, 04:38 PM   #2
Brian Magee's Avatar
Brian Magee
5 Tenths
United Kingdom
Join Date: Sep 2001
Location: Newbury England
Posts: 597
Re: Inverting Renault Gearbox

I would imagine it was written by Kevin Farringdon but quite a few years ago. I am sure he will see this post and reply.

GTD, 289, ZF.
Brian Magee is online now   Reply With Quote
Old 28th January 2012, 07:54 AM   #3
A Tenth
Join Date: Jun 2007
Location: France
Posts: 145
Re: Inverting Renault Gearbox


Wich gearbox do you use? un1-XX. Let us know the XX value.

Anyway, if your gearbox comes from a renault 25, renault 21, espace V6, it is already in the right position.

If it comes from other donors such as alpine, you need to invert the differential.

If you don't know your donor, the test is simple :

enage first gear on the gearbox. Turn the input shaft clockwise (as per your engine rotation or counter clockwise in case of any boat engine...) and look if the axle shafts turn clockwise or counter clockwise, then you will know if you need to invert the differential or not.

if you need to invert it, you just have to open the gearbox, flip the differential and reclose..very easy to do


LastPago is offline   Reply With Quote
Old 28th January 2012, 09:06 AM   #4
mickky3's Avatar
3 Tenths
United Kingdom
Join Date: Aug 2009
Location: Hampshire UK
GT40: building my own
Posts: 332
Re: Inverting Renault Gearbox

Hi Stephane,

I have a Renault UN-103

The reason Im going to invert it, is to get the drive-shaft outputs higher, so I can get the engine/gearbox lower

I know people have inverted the gearbox, by cutting, the bell housing in half, turning it through 180 deg, and then welding the bell housing up.

David Sharp, suggested, using an adaoptor plate between the gearbox, and bell houseing, to invert the gearbox.

Im looking into all options, before I start the conversoin

mickky3 is offline   Reply With Quote
Old 28th January 2012, 11:54 AM   #5
MikeP's Avatar
Gold Supporter
United Kingdom
Join Date: Dec 2005
Location: Oldham
Posts: 1,436
Re: Inverting Renault Gearbox

Kev Farrington from the North West area has an inverted Renault in his car. Send me a PM and will send you his contact details or you can find him in the club members list that members get each year.
MikeP is offline   Reply With Quote
Old 29th September 2016, 10:52 PM   #6
kevinruthbox's Avatar
2 Tenths
Join Date: Jun 2003
Location: South Australia
GT40: GT40NZ
Posts: 286
Re: Inverting Renault Gearbox

I'm also interested in this
Has anyone got pictures?????


Scat / Probe 347W - Modified Brodix Spec heads - Hilbourne (EFI) Roller cam
kevinruthbox is offline   Reply With Quote
Old 30th September 2016, 02:52 AM   #7
Hendrickx Paul's Avatar
Hendrickx Paul
Silver Supporter
Join Date: Jun 2016
Location: Mayenne France
Posts: 77
Re: Inverting Renault Gearbox

Hi ,
find here copy of page from the workshop manual Un gearbox Renault
view of the gearbox from the clutch side. to which the crown wheel should be in normaul use.

also a link to download the entire french version
hope it helps you.
Attached Thumbnails
Inverting Renault Gearbox-scan-bv-un-renault-jpg  
Only Robinson crusoe got things done by Friday
Hendrickx Paul is offline   Reply With Quote
Old 1st October 2016, 05:56 PM   #8
Kev Farrington
United Kingdom
Join Date: May 2007
Location: Cheshire UK
Posts: 96
Re: Inverting Renault Gearbox

Hi guys, I am happy to tell anyone how I did it if you want to contact me. It was a long time ago and it will test my memory.
Kev Farrington is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
renault gearbox brian snelling GT40 Tech - Engines/Induction/Exhaust 3 16th August 2005 06:59 PM
Inverting Audi Gearbox indycar GT40 Tech - Engines/Induction/Exhaust 9 9th July 2004 11:44 AM
Renault gearbox FredGT40 The Garage Sale 0 6th September 2003 06:54 AM
What Renault gearbox Julian Brewer GT40 Tech - Powertrain/Transaxles 14 21st May 2003 08:01 AM
Inverting/lowering the Renault G'box Julian West GT40 Tech - Powertrain/Transaxles 8 16th October 2002 03:58 PM

All times are GMT -4. The time now is 04:15 PM.