Having trouble trying to work out what diff to put in my rolling chassis. I don't want to run a ford 9 inch or run anything that is IRS. Can anyone tell me what the easiest diff to put in my chassis would be. I would prefer not to get an engineer to cut and join. I would rather hear that for eg, a torana, diff is short and works well, or maybe even a vn commodore, I know I am talking Holden I have just heard they are normally a little narrower than the usual ford. I may have heard wrong but any input would help, please.