My gearbox has shit itself (I assume). Its making a metal on metal noise in every gear except 4th. Best way to describe the sound is to picture a shaft spinning inside a case, but its lose so it can randomly hit the sides of the case. Only does it in gear, clutch out and it doesn't happen in 4th but it does in every other gear. So I'm deciding what to do with the entire driveline as I had plans for it anyway.
Here's a bit of info about the car (skip to the q's in bold if your bored )
Its a 73 240z with an l26 engine, pretty standard, just a header and electric dizzy, roundtop su carbs etc.
In the future I'm planning on a proper 3.1L stroker. I have triple webbers for it and plan on sinking as much as it takes to do it properly (budgeting for another $10000 atm).
This is just a weekend car. I have a daily driver 260z i drive to work everyday.
I'm 90% sure it has a r180 3.545 diff thats making a little whine atm. The gearbox is a 280zx 5 speed.
The tailshaft needs new universals.
What my plan is atm, is to replace the gearbox and do a s13/14 gearbox mod (ill keep the current box and rebuild it for me project car). A new aluminium tailshaft (probably a waste of money but this is my pony car). And I want an LSD, if im going to rebuild a diff anyways i might aswell rebuild an lsd. So I'm thinking I'll do all of these 'upgrades' now.
I suppose most of my questions will relate to the lsd but if anyone has any input on my plans feel free to put in your 2 cents.
I've read a bit about the s13/14 conversion and I think I'm pretty fine with the process. I'm thinking of the s14 box just because generally speaking it should be 'newer'. Just wondering if they are any other pros/cons between the 2 boxes? And if anyone knows of a pretty reliable place i can get good box from or do you think i should rebuild an s14 box myself? I don't want to put in a box thats just as bad.
With the diff, i understand that theres a few mods you have to make to fit an r200 diff but these seem to be the more common of the lsds. I would rather go with a 180 but i suppose I will also be limited by availabilty atm. I would also like to up the ratio to probably 3.7 or 3.9. There has been talk of using an r180 from an Sti and there's a guy on ebay selling them for about $1000. What I'm not sure about is what is needed to make them fit? I'm not sure about the halfshafts when it comes to lsd's. What would be the ideal lsd for me if i wanted a fairly simple conversion or what would you recommend for me anyways?
Would love to hear anyones advice or if you see any issues with my plans...