modifying stock driveshaft for s13 with rb25

[1GayDrifter]

i have a s1 rb25 swapped into my 89 hatch and was wondering if anyne has modified their stock ka driveshaft t fit on the rb. i already know that i can buy a new one piece driveshaft, but i rather see what i can do with my stock one first. has anyone done this or know a site that could tell me how to do it?

thanks

[imotion s14]

You need the correct yoke. Search.

[mattleegee]

i know my rb one was WAAAY shorter then my stock DOHC MT onejust get a one piece

[kpnitrl]

As mentioned, you need either the RB or z32 yoke. Unfortunately on the the 240sx driveshaft the u-joint is not interchangable. Some u-joints are held in by a c-clip or something of sorts, but not the 240s. So, in short, just get a new 1 piece. I suggest the driveshaft shop or shaftmasters

[8gti9]

3103-30 slip yoke

[RB20DET_240SX]

i was just going to grind my stock one down wer you bolt it up at until i get the money for an aluminum one.

[Sil240]

i was just going to grind my stock one down wer you bolt it up at until i get the money for an aluminum one.

If you have a RB20 then you shouldn't have to worry about this.Unless you have a RB25 Trans.

If you have a RB25/Trans then your wasting your time and a stock Dshaft

gheydrifter - LOLYou wasting your time and effort.SEARCH and then just buy a 1 piece

[Cameron]

just take it to a drive shaft shop, my local one charges around 150 for a steel one piece.

[roadrunr]

I have a S1 RB25 Automatic in a 92 vert and the KA yoke fits into the RB transmission, yes it says RB on the transmission, so far I have shortened it 1 3/4" and its still too long, so I'm taking another 1/2" off, which will leave me about 2 1/2" of yoke in the RB transmission, so it should work, if not I go get a one piece but I figured it was worth a try.

[Fibre guy]

Why keep the old 2 piece one?! That thing is heavy! It weighs 2 or 3 times and much as my aluminum 1 piece. It's a weight reduction all on its own. Less spinning mass = better response.

[roadrunr]

Nevermind, it wont work anyway, the RB sets back way too far, calling drive shaft shop in the morning.

[phulawless]

hey roadrunr, i was wondering if you have the measurements for the auto rb25 driveshaft into the convertible...im doing the same swap and that's my final peice to it. also what mounts are you using if you dont mind me asking. thanks in advance