prop shafts difference between 340 and 360

[miniswift]

Hi,

I have been thinking of shortening 360 prop shaft/torque tube.
Before I cut it and not be able to do anything, I would like some info from people in know.
Can I use 360 gearbox with 340 prop shaft? Are they inter-changeable?

I will be fitting it to my future project which will be shorter than 300 series. So I will need to shorten almost 300mm.
Also, I will be using spline from Swift Gti input shaft so that I can connect to Swift Gti engine with turbo charger producing 200-ish Bhp from 1300cc.
Gti gearbox bell housing will be welded to 300 series bell housing.

I was thinking if 340 prop shaft can fit 360 gearbox and bell housing. I would like to buy/swap.exchange....

Any ideas?

Cheers
Atchi

[Nimminz]

The 360 uses a torque tube rather than a prop. AFAIK its basically a prop held in a tube that bolts to gearbox and bell housing. It seems a pretty indestructible system if you're not running massive power. I've not heard of one going wrong... compared to 340 props... On that basis alone i'd say its not a good idea. The 340 prop's been designed for the sub 100 (50 for a 1.4?) brake the renault engines kick out, 200's a tad over that. Also i'd not have thourght the splines would fit at all but that's just a guess. Saying that though i *think* gear boxes are interchangable between 340's and 360's.

Just out of interest what is the new project? Sounds interesting!

[miniswift]

Hi,

You must be the guy with CV aerial driving quite often near new college.
My mate is trying to give me his Midas kit car which in the future......I think.
I will fit Suzuki Swift Gti engine(G13B) DOHC 16v. I have made turbo manifold and I can get 200+Bhp from std CR engine. But I will be bored out and give it bit more.
I know some people with 250Bhp from 1300cc so I will be happy to have 200Bhp.

Anyway, Midas is FWD so I will be fitting 300 gearbox with Mazda MX-5 rear subframe and PG LSD. So I can go side ways!
I'm hoping to do sprint and so on. I have 360 gearbox and spare complete diff. So I will be carrying/experiment with spare.
My carrent project is an old Mini with G13B, a LSD, Yamaha R1 carbs and Group A camshaft.. with 2" roof chop!
I have 3 project going all the time so I can say I have fingers in too many pies!

Cheers
Atchi

[Chris_C]

Spline wise, 340 is 20splines on 7/8", 360 is 24spline on something like 13/16" (check that though). Might make life easier

360 and 340 boxes are essentially the same, apart from the input shaft and the associated plate in the front casting of the box. You can't easily swap a propshaft onto a 360 box.

[miniswift]

Hi,

If that is the case, I shall look into shortening torque tube then.

Thanks for the info guys.

Cheers
Atchi

[Nimminz]

that is me indeed, At new college full time. Never realized you were from newton hall, what's your current daily? will look out for you! I know a lad in witton gilbert with a spare torque tube he *Might* part with for a bit of cash if you wanted a spare to experiment with?

Project sounds good like, had to google the Midas like but looks rather nice, plus your plans sound very nice too! So i take it its just the use of the transmission for the project that brings you on here or do you have a 300 as well? one of the other projects?

[miniswift]

Hi,

I drive Gun metal Qashqai+2.
I'm Jap so you won't miss me!

Yes I used to drive Volvo300 when I was 17.... nearly 20 years ago.
I want to have RWD fun so I'm thinking of doing this project or Clubman estate with 360 gearbox RWD.

Cheers
Atchi

[Nimminz]

I'll keep a lookout for you and give you a wave

Can't beat a bit of RWD like, clubman estate RWD would be pretty cool but i'd say stick with this project

Matt