Mk mate. The smaller bolt holes, M10 I think didn't line up too well, had to kinda force it on eventually. I don't know, maybe the castings are slightly different. Had to cut more off the casing to get the different top plate (7.5") to fit. Wasn't amused about that either, didn't need to buy more shaft adapters as the originals have holes for 4x4 and 2wd! Didnt need the bloody things! Once it's on it's great does the job, I've got a brand new supra diff (internals) and I expect it will do well but my plan was to have different ratios for different tracks......f**k changing that over each time!