Truckster (Vic) replied:

Is the only mod you are doing or have a LRTank? No rear storage no roofracks etc???

If so, poly airs are only a temp fix, EG few times a yr. Go with springs, they are not that dear.

Your best bet is to fit out the truck with everything that you want, go and weigh it, then go and get springs and shocks to match...

Rosco - Bris. replied:

You're only talking about an extra 60-80 kg .. maybe 100 so it really shouldn't be necessary to make any significant changes.

Don't know the veh tho ....

Cheers

Bob Y. - Qld replied:

Mr Ed,

Hey, didn't you used to be on TV?

Have an 80 series with rear _Affordable_Storage_Drawers.aspx, and 166l rear tank, and have checked suspension when filling the tank, form near empty. Hardly moves more than a mm or two. Have Lovells h/duty coils all round.

Hooroo...

Member - Jim replied:

Mr Ed,

We have a 100 series TD GXL with 182 litre Longranger tank. This means that the spare is on a Kaymar carrier. With this considered, the overall effect with the spare weighing 43 kilos and now twice the distance from the back axle, plus the extra fuel and the weight of the carrier and tank you start to make a serious hole in the 350 kg load capacity of that vehicle. So we put heavier springs in plus Polyairs. Main reasons for both are because the extra fuel is to go to more remote areas. Great idea, but when you are more remote, you also need extra supplies, water, beer etc, plus a second spare, (43 Kilos again) and two camera bags! We have used this combination with no problems for 3 years now. Around town the Polyairs are at about 7 psi and in the desert, they are at about 15 psi. Because the Polyairs are large in diameter, they increase load support at relatively low pressures.

Happy tinkering with the 100 series.

Jim