Rocklobster Transfer Box Mountings

Its not so much the noise which really isn't bad but its the harshness that you can feel through the whole car. If you put the transfer box in neutral and the auto in drive and rev to about 4000 rpm the whole car buzzes and everything vibrates. That can't be right or good for the gearboxes. The centre prop was made by a company near Heathrow from the original Jimny and fitted with a new Sammi flange, then balanced. It could be the prop but somehow I think its unlikely. I did at first think it was the rear prop as that was an old Sammi one with a little wear in it, so I had an adaptor made to fit the original Jimny prop to the Sammi output flange but unfortunately it made no difference!

My personal opinion is to scrap the polybushes and use the std rubber suzuki ones!!
I use them as a fuse in the drivetrain to save me doing any further damage
to the T/Box like ripping the side out.....
I usually have 2 spares in my glovebox just in case and its 2 spanners
to change one!!! I run the Rockwatt setup with the rockbucket!!!

My transfer box is a Rockwatt set up and not an ORA box but they use the same polybushes with the bolt going all the way through.

As Rockwatt boxes use old gears with new - this creates the "horrible din" I speak of - made worse though I suggest by the effectively solid mounting of the bolt that goes through the mounts and the chassis. Rockwatt's are half the price of other suppliers though! With this in mind I can accept my horrible din until they have meshed together better!

So, sorry Rob - it's no reflection on your boxes or mounts - just the solid mounting of the nylon bushes. I must try loosening them somewhat as per your advise for your kits though - I overtighten everything from drinks bottles to prop bolts!

I can feel that vibration through the floor you speak of Martin - glad it's not just me as it did worry me at first, but I'd had no vibration in my old props and had my new one supposedly balanced.

I had KAP heavy duty mounts on the SJ, so could try them, but they are expensive, as are new standard suzuki ones. I might just put up with my horrible din until it has a few more miles on it!

Kirkynut

Kirky,
They all use new and old gears together!!! Apart from Rob Store on the lower 6.1 etc where he cuts new gears!!
But all Rocklobsters are a "cut and shut" type job!!
I went for the Rockwatt because he puts the gears together right and they are pinned and welded, I have
seen some spectacular failures with some others, and i know a lot of people who run richards box's, but thats just me!!!!

just buy a length of poly or stiff rubber and make your own bushes, Works out a lot cheaper!!!

Cheers for that Jamie - I didn't realise they all ran old and new together. I went for Richard's because of the reputation he has forged too and have heard of others failing.

In respect of the transmission noise - I might just stop being a big jessie - suck it up and live with it - I used to run a soft top SJ after all and drove to the Lakes and Wales in that - so even with the transmission noise - my Jimny is luxury in comparison! Much quieter than one of those pesky Landrover things with those noisy diesel things under the bonnet!!!

I'll just turn the radio up!!

The Rocklobster is a wonderful thing off road too!!!

Kirkynut

Thanks guys for all your answers and advice. I think probably a little experimenting will solve the problem. As a matter of interest Jamie did you use Jimny std mountings or Sammi which I think are a bit harder?
Has anyone got a D&G (or Measson) kit which uses a std rear prop and if so have you had any problems with it?