FE-FC Holden Discussion Forum

Technical Board => General Technical => Topic started by: TorqueFC on June 15, 2005, 06:44:31 AM



Title: DIFF IDENTIFICATION
Post by: TorqueFC on June 15, 2005, 06:44:31 AM
here is a pic of the diff that we just pulled out of a hr wagon

doesnt quite seem like a hr diff

when stripping the car we noticed that the brakes were mounted in another position and also after removal, we measured it against a standard fc diff and it turned out shorter. it was my understanding that hr diffs were shorter so this leads me to expect that it is a torana diff

any help would be great

(http://i3.photobucket.com/albums/y80/pro_058fc_350/Campics2035.jpg)

(http://i3.photobucket.com/albums/y80/pro_058fc_350/Campics2037.jpg)

(http://i3.photobucket.com/albums/y80/pro_058fc_350/Campics2034.jpg)

(http://i3.photobucket.com/albums/y80/pro_058fc_350/Campics2041.jpg)

cheers
Torque


Title: Re: DIFF IDENTIFICATION
Post by: TorqueFC on June 15, 2005, 06:45:23 AM
also anyone know how how to tell what ratio it is???


Title: Re: DIFF IDENTIFICATION
Post by: FEHOLDEN on June 15, 2005, 10:19:12 AM
hey torque

the two "long" bolts at the bottom tell me that is most likely a torana diff. i am running a 2.78 in my HT which came out of a torana rear end which looks identical to yours.

you will find the diff ratio stamped into the flange just behind the yolk.

hope this helps


denis


Title: Re: DIFF IDENTIFICATION
Post by: gp on June 15, 2005, 07:21:23 PM
Hey Darcy,
Also if you're going to pull the diff centre out of the housing, the ratio is written on the crown wheel.

Cheers,

Graham


Title: Re: DIFF IDENTIFICATION
Post by: Dr_Terry on June 16, 2005, 06:17:21 AM
Hi Guys.

The diff centre with the 2 long bolts is a 3.08 or a 2.78.

These are seen in anything HK onwards, but more commonly in Toranas.

AFAIK an HR diff is the same width as an FC diff, so the shorter one is probably a Torana LC/LJ/LH/LX converted to leaf spring mounts.

If you post me the exact length (drum face to drum face) I can identify it for you.

Dr Terry.