Si B

iTrader: (59)

Howdy fellow PFers

As some of you have seen (and a fair few are doing), I'm converting my car temporarily to 2wd

Anyone able to tell me the difference between a 2wd beam and a 4x4 one? Basically I want to use my 4x4 beam if poss, with a 2wd diff.

Need to know if I can do this? Not sure if my 4x4 diff is up to 450bhp +, so thinking of bunging a 2wd one in there if it can be done.

Basic gist is I want to convert to 2wd as cheap as poss, and leave as much 4*4 kit in place so I can go back as soon as the FIXIT is in place.

Cheers
Simon

Mr RS500

iTrader: (6)

4x4 beam is 7" and a 2wd is 7.5"

You can put a 4x4 diff in a 2wd beam but cant put a 2wd diff in a 4x4 beam

Paul

costina

iTrader: (1)

Si, They are different as the 2wd is wider to carry the 7.5 diff,shame it was'nt the other way

4wd diff should be ok ish for 450bhp as long as u don't lanch HARD!!!!!
You can have it uprated to save the hassel of changing beam!!!!

Think the shafts are also different sizes

Paul

costina

iTrader: (1)

LOL beat to the post

Si B

iTrader: (59)

Paul and Paul ( )

Thanks so much guys - both of you have cleared things up for me no end.

I'm getting a hell of shopping list together - this 2wd conversion is a little more involved than I first hoped (just thought I'd remove the front prop, job done (JOKE!!!)

From the sounds of things, I'm going to need 2wd shafts as well if I use a 2wd diff - anyone confirm what Paul (of the Costina variety) has said?

Paul of NYRS Spares fame - can you PM me a price for all the bits to do the swap if you have time? I've got a friend locally breaking a 2wd car, but always handy to have other options as we don't know about the condition of his diff at the mo.

I think I need a 2wd T5, prop, diff, beam, shafts and speedo cable so far!

Si

dave cos4x4

iTrader: (5)

not fitting a 2wd sump too Simon.

cheaper to buy an uprated box the way you are going.

Mr RS500

iTrader: (6)

Shafts are bigger on the 2wd 7.5"diff

If you need any parts mate its best to call me ( if thats ok ) I have all my price lists at work

Anonymous

On a trackday your diff will be fine i reckon mate as you will only be at lowest in 2nd hear when you are flooring it and obvioulsy the gearbox is a torque divider the moment you change from 1st to 2nd.

And TBH if it does go pop, they arent exactly mega money to find again anyway, so i wouldnt bother with the hassle of swapping it personally as its only temporary.

kjc300

iTrader: (1)

Surely it's going to be so much easier to throw a cheap second hand 4x4 box in it and take it easy till you get your fixit!!

2wd conv seems a bit involved just for a temp measure.

Unless you really want to cane it

You taking it to the ring 2wd then??

Anonymous

"Si on a track" and "take it steady" just are NOT two things that go together!

kjc300

iTrader: (1)

well, I did hear the death rattle on the 205 when it was being parked up!!!

Just depends on how long the fixit takes to arrive/ save up for - seems a lot of kit/work just for a temp thing!!

going to be in the same situation too soon, already have one addition to my own mt75 gearbox graveyard in my back garden and a gt30 maybe on the way!!

natehall

iTrader: (2)

have you not thought of the simple option?

how about just replacing it with a 2.0 DOHC MT75 and prop - turning ur car from 4x4 to RWD as a temp measure - should only cost you at most 50 quid - saving u the $$$'s for the FIXIT

Anonymous

But it doesnt have the strength of the T5 and will break as quickly as chucking another standard 4wd box at it.

foreigneRS

SiB i have all the 2wd rear parts that you need except diff. see my breaking post - link in sig