hello from australia

[MATNESmotorsports]

hi all
i'm not a datsun collector but i am looking for some technical info on a roadster diff. what ratio's, LSD's and also the measurements of the mounting points. pic's would be great

the reason i ask is that i have been told by 2 different sources that these diff's bolt into my car with out any major mods and have a better ratio

pls don't get upset that my car is a Mitsubishi but it is a rare one......
1970 Colt 11SS





MATT

[Nissanman]

Hi back Matt!
Where are you located?
The dimensions and ratios may be suitable but I don't like your chances of actually sourcing a Roadster rear end
I can do some measuring for you if you wish, my chassis is like this: -

What about an early Escort or Cortina?

Anyhoo, here is a site with all the Technical data for the full range of Fairlady Sports cars: -
http://tinyurl.com/5go9ty

[MATNESmotorsports]

i'm in Canberra.

i was just looking at the site and there are whole cars going for reasonable prices so i thought someone might have a cheap diff.
i haven't seen many here but there are a few still getting around and i didn't think i would find a rear end in Oz.

the main reason for these diff's is the mount points to the springs are the same and they have bigger drums.

thanks for the pic

MATT

[datsunrides]

And unless you have a lot of cash burning a hole in your pocket, forget about LSD's for the roadster. Very expensive. There are a couple people here trying to fit a 84/85 RX7 GSL rear end for the LSD in them. (and disc brakes)

Mark (wagonman)

[MATNESmotorsports]

And unless you have a lot of cash burning a hole in your pocket, forget about LSD's for the roadster.

Mark (wagonman)

no i have a yellow money box*

MATT
*see pic above

[RC240z]

A different approach might be a roadster housing with a ford 8" differential (a common racing upgrade). This would give you limitless options for gearing, a much less expensive LSD or locker solutions, larger brakes and a housing that will fit your car.

There are down sides to roadster third members, the axles on a roadster are stout but the mounting system for them leaves a lot to be desired.

Best,

R

[Nick64]

I've got a whole rear end from a 1500 64 roadster if thats any help??

[Craig Martin]

Matt.
I too have a 1500 one in my car, which I plan on taking out soon, if you want a look.
Give us a call on 0407 251 141 after 7pm or on the weekend.
Craig.

[Craig Martin]

The late model fairladys came with a H190 diff (bigger then the early models) This gives a lot more options.

The S3 Bluebird, S12 and 720s had H190s and there are a lot floating around. So you can get ratios from 3.6 through to 5.5.

This site is great for datsun stuff:
http://ozdat.com/ozdatonline/

Also this guy was selling a H190 detroit locker on ebay, I think it was around $550. He may have info for you.
http://ozdat.com/forum/memberlist.php?m ... ile&u=4801

Also you can have an LSD made:
http://datsun1200.com/modules/newbb/vie ... at&order=0
note: at the top under H190, Sidedraught

When I last spoke to Lou Mondello (Melbourne) he had a 1600 10 bolt diff (PM me if you want his details)

Plus, the local rally club often have useful stuff.
http://www.bmsc.com.au/

Food for thought,
Craig.

[MATNESmotorsports]

yeah ford diff will be to heavyand big, the car only weighs 700kg
cheers for the links

MATT