Thread: part time 4wd

The only benefit is probably a significant reduction in driveline backlash.

Originally Posted by mark2

The only benefit is probably a significant reduction in driveline backlash.

Nope it seems like it makes it worse.

I removed the front shaft in mine recently to do the uni's and the backlash was much more pronounced.

Originally Posted by mcrover

Nope it seems like it makes it worse.

I removed the front shaft in mine recently to do the uni's and the backlash was much more pronounced.

Actually it DOES reduce the backlash, as when you fit a part time kit, you replace the centre diff with a full spool, so it eliminates the backlash of the centre diff, as opposed to driving with the front shaft out and centre diff locked, incurring the total lash of the centre diff and rear diff, as opposed to just the rear diff

Originally Posted by rovercare

Actually it DOES reduce the backlash, as when you fit a part time kit, you replace the centre diff with a full spool, so it eliminates the backlash of the centre diff, as opposed to driving with the front shaft out and centre diff locked, incurring the total lash of the centre diff and rear diff, as opposed to just the rear diff

Rovercare, just a small hi-jack, with the front shaft off and running with the CDL locked (driving just the rear diff) is there any damage caused or is it detrimental to the T/C to drive in this mode, my Son broke a front tailshaft in his Stage 1 and he is driving on the rear axle alone, Regards Frank.

Originally Posted by Tank

Rovercare, just a small hi-jack, with the front shaft off and running with the CDL locked (driving just the rear diff) is there any damage caused or is it detrimental to the T/C to drive in this mode, my Son broke a front tailshaft in his Stage 1 and he is driving on the rear axle alone, Regards Frank.

I'd have no great hesitation to run like that, but I'd be keeping the wheelies to a minimum, is actually stops the centre diff working so is alright, just the "extra" loading is on the rear diff, which is a sals, I'm guessing, so of little consequence there

Rovercare is correct - no worries. But do not use low range!

John

It is interesting that people say that you get better economy from rear wheel drive only as opposed to constant 4WD. I drove my S2 TD5 manual for about 2 weeks in rear wheel drive only with the CDL engaged while the front shaft was being rebuilt. The car definitely handled differently and I didnt like it either. I went through a full tank of fuel whilst in 2WD and noticed very little difference in fuel usage. I constantly get 10L/10km.

Cheers

DaveF

Hmmm yes, its about time I subscribed so I dont have to type a signature every time.

Originally Posted by DaveF

It is interesting that people say that you get better economy from rear wheel drive only as opposed to constant 4WD. I drove my S2 TD5 manual for about 2 weeks in rear wheel drive only with the CDL engaged while the front shaft was being rebuilt. The car definitely handled differently and I didnt like it either. I went through a full tank of fuel whilst in 2WD and noticed very little difference in fuel usage. I constantly get 10L/10km.

Cheers

DaveF

Hmmm yes, its about time I subscribed so I dont have to type a signature every time.

You would be betteroff with a V8 then