can anyone tell me if trans crossmembers vary much, im goin up to canberra soon to pick up a new tailshaft for a conversion and the seller says he'll give me the trans crossmember off an old 4 speed, im only a 17 year old pizza boy thats been into cars since i got my 75 120y and everything i know ive learnt off this site, and i need to know if it will suit my conversion, ive got a 56series dogleg 5 speed to go into my car, i was going to fabricate one myself as thats the best way ill learn, but would it be easier to mod this xmember for the job, any info on xmembers or info to help me will be verry appreciated

Yes, transmission crossmember (what Nissan calls the rear engine crossmember) varies by year, model and auto vs. manual.

For pictures of various xmembers, see: 5-speed article. Note that 4-speed and 5-speed mounts are generally identical (of same type, e.g. 4-speed 60 is same as 5-speed 60).

Also, be sure to check the drive shaft alignment, or it will vibrate something fierce!
An easy way to do it is with an angle finder,place it on the back of the trans, and on the flange of the diff, and make 'em the same!

Take some extra dosh if you can, Olly's sure to have something you didnt know you needed until you see it, quite an impressive wrecking yard he has

with the 56a 5 speeds,i was always able to use the standard crossmember,though sometimes
i'd space down the the crossmember to level the gearbox.as the 5 speed is supposedly original fitment from a b210,the standard
crossmember will be the best go.with the 56a 5 speed,the minute you hear any bearing noise,get the bearings replaced,or it'll lock up the input shaft & destroy the cluster gear,etc.
you realise it's a 1 to 1 fifth gear.