I cant answer about the housings, however if you are going to run larger tyres it can only benefit your engine. You will get more torque and less load strain on the driveline. Load =heat and more fuel. Your engine will rev freely with the ratio......
Hi Alex thanks heap. You conferemed my thoughts.
I have been looking real close at the diff ratio for a while now and the calculator I used did sugest the 4:10 that will bring it back close to stock. There is a few more things i will be doing like HPD Catch can,trans cooler, and upgraid the turbo intercooler at the end of the year. The E-Harrops cost me $1620 each plus fitting of about $1000 labour and oil..I think I will get the S/Hand diffs and get the lockers set up, at least then I can fit them and keep the OE Diffs. Money is getting tight but I need to get this project compleated. Been a huge money pit setting this up.
See ya on the track some time