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diff options
Posted: Sun Sep 23, 2007 3:11 am
by mrgtsx
hey guys im in the process of replacing my 320 diff with something stroger to handle the power. i want one that fits in right so i was leaning towards a 325is diff. is there a stroner diff that will fit in? a 5 series?
Re: diff options
Posted: Sun Sep 23, 2007 6:44 am
by E30Mark
How much power?
5 seriers diff won't fit (internals might)
Double check the diff mounting point to the chassis, not uncommon for these to rip off the chassis! - also make sure your sub frame mounts are new.
Can't see you'll gain much in strength between a 320 / 325 diff just different ratio's, unless the 320 is a small case??
Re: diff options
Posted: Sun Sep 23, 2007 7:08 am
by mrgtsx
wel an s50 is going in so i would need something that can hold together
car is pretty much a band spanker. underneath is like new and if changed all bushed and all mounting points are tip top
Re: diff options
Posted: Sun Sep 23, 2007 11:37 am
by daimlerman
Two sizes of diff cases are used on E30's.The small one(6 bolts to the rear cover)went in the 4 pot cars and most 230's.The medium case diff(8 bolts to the rear cover)was used in all 325's.Both came in a multitude of ratios and open/LSD.The medium case unit was also fitted in E28's,which opens up the ratio range still futher.An ex E28 diff will need it's output flanges swopping to fit the narrower E30,however.Use a Z3M diff mounting bush.