Differential Design

randcook · Posted: Wed Feb 06, 2013 5:21 pm Post subject: Differential Design

Hi Guys,
Am building a 2CV 4x4, I can here the giggles already.
Want to have LSD,s but these are nigh on impossible, due to the small size of the diff carrier and inboard brakes.
Now an idea...
(Most) Rear wheel drive diffs only seem have one set of bearings to support the diff and also the drive shaft.
With Citroen and inboard brakes, there are two sets of bearings, diff and then drive flange/shaft.
Q. If I put a saddle on a rear wheel diff to support the brake calipers, would that work, with only the diff carrier bearings to support the diff and the braker disc?
Ideas welcome.

Cheers
Peter

ps The builds on here are quite amazing

scrunt · Posted: Wed Feb 06, 2013 6:07 pm Post subject:

Welcome to the forum.

As i read it i was thinking twin engines front and rear and drive using either or both.
Certainly not giggling, always good to see someting different..

Can you give some idea what exactly you are working with.
What are you using, engine/gearbox, transfer box and axles.

Question

Any pictures to be going on with please?

'602' (John) should be along hopefully, he has 2cv experience.

george

dxmedia · Mud Obsessed Joined: 10 Dec 2008 Odometer: 2185

The common method of making a 4x4 2cv is to twin engine.

Keep it simple and don't try to reinvent the lightbulb.

randcook · Posted: Wed Feb 06, 2013 8:20 pm Post subject:

Video http://www.youtube.com/watch?v=TjKrjE6--ZU
As the video shows progress so far.
Want/Need LSD so the didd question still stands.

scrunt · Posted: Wed Feb 06, 2013 8:30 pm Post subject:

Wonderful. Well done.

I see now,
but must say i do not understand, but thats not unusual. (Tom Jones.)

Bright People will be along soon with sound advice and help i am sure.

george

jerry h · Just got MTs Joined: 08 Sep 2011 Odometer: 224

Scooby diffs

rob546454 · Posted: Thu Feb 07, 2013 3:59 am Post subject:

Weld them up?

owen_zuki · Just got MTs Joined: 30 Aug 2006 Odometer: 496

Old jag diffs had inboard brakes and if you get xj twin 6 (v12) diffs they had lsd plate type. you can strip them and move the plates to make them more or less lock

randcook · Posted: Sun Feb 17, 2013 7:33 pm Post subject:

Some pics
Got a Subaru diff off ebay
Shaft is cut down inner from subaru drive shaft
Adapter cut from Citroen 2CV shaft
Disc/Caliper from Citroen 2CV

Will this set up load the diff bearings too much.

waveydave · Posted: Mon Feb 18, 2013 9:24 pm Post subject:

Dont know if these guys ar still going but they had kit ready to buy.

http://www.barbour4x4.com/componentparts.html

randcook · Posted: Tue Feb 19, 2013 10:52 am Post subject:

Hi,
Thanks for the link and I do know Louis Barbour (now lives in Croatia).
Just want to build my own 2CV with Low ratio and bullet proof diffs.
Build so far
http://www.youtube.com/watch?v=-XoGNtPfYyo

4x4rick · Posted: Mon Feb 25, 2013 9:38 pm Post subject:

u could try a PM to
offroad69 (Lee) he used a scooby diff combined with a 800cc rotax...

powered honda pilot
http://www.youtube.com/watch?v=fafSAj1abaI

he had some issues with his inboard brakes