Thread: Help with 130 tyre sizes, wheel offset etc

Thanks, I too found those but its annoying I cant find data for the 130. If it is the case that the 130 is the same as the 110 then there definitely isn't the 2" lift that there should be at the front, and theres more than 2" lift at the rear.


Having said that apparently even with standard suspension other people are running 33x12.5 tyres without rubbing issues.

According to my spreadsheet your springs have the following specs:

Old Man Emu 110 Front 751 225lbs 390mm

Old Man Emu 110 Rear 754 420lbs 435mm

So you have 30mm lift in the front and 40mm lift in the rear at a guess.

Sent from my Nexus 4 using AULRO mobile app

factory D130 static (loaded) coil height is typically:

250mm front
350mm rear

that measurement is taken from the outside of the coil closest to the inside of the tyre.

factory D130 quoted bump stop clearance is

front +/- 15mm - 97mm
rear +/- 15mm - 152mm

By comparison the D110 bump stop clearance is

front +/- 15mm - 72mm
rear +/- 15mm - 130mm

Be careful of bump stop clearance, variations in rubber, age, wear and tear and location of measurement etc will all affect the value.

your actual lift is +/- 20mm front and rear over D130 factory. If you feel cheeky you can compare it to a D110 and say it's a 3" lift at the rear.

A 33" tyre will easily fit and move without fouling at factory D130 height so that's not, necessarily, the cause of your fouling. I ran 35" rubber on an actual 40mm lift without fouling and i know numerous defenders running 33" on standard or not far from standard height without fouling.

Badco. the specs you quoted I suspect are the free length not the static (loaded) length. The factory D130 free length for FD 395mm (15.3") and FP 382mm (14.8"), rear is 420mm (16.5"). The D130 front coil is marginally longer and higher rating than the D110 coil. The rear is the D110 outer coil plus the inner helper which increases the rate from about 330 lbs/in (D110) to 420 lbs/in (D130).

For you to achieve a front static length of 350mm you would start at about 465/470mm free length and that is for a coil at 240 lbs/in which is higher than the factory D130 rate (225 lbs/in). [i'm quoting from my coil specs, supplied by Dobinsons and verified by my own measurements before fitting and after fitting]

People forget that OME, Dobinson, King etc design their aftermarket coils on the assumption people use the factory shocks or their branded shocks which are about the same as the factory open and closed lengths so the coil does not dislocate under articulation. The lift comes from a thicker wire resulting in a higher lbs/in rate.

The manufacturers forget that a D130 has different spec coils to the D110 and what is a lift on a D110 does not necessarily equate to a lift on a D130.

Don't trust marketing material.

MLD

Originally Posted by MLD

Badco. the specs you quoted I suspect are the free length not the static (loaded) length. The factory D130 free length for FD 395mm (15.3") and FP 382mm (14.8"), rear is 420mm (16.5"). The D130 front coil is marginally longer and higher rating than the D110 coil. The rear is the D110 outer coil plus the inner helper which increases the rate from about 330 lbs/in (D110) to 420 lbs/in (D130).

MLD

Yes, this true. Sorry should have specified.

If you want more spring options, feel free to refer to my spreadsheet

The front end is physically the same no matter if it's a 90, 110 or 130 so if you have the height it shouldn't rub.

I was running 35"s for a while on a 2" lift. Was catching the rear of the front eyebrows, that was it. The springs compressed at the time measured 295mm.

You will have to inspect closer and look where exactly it's rubbing.

Originally Posted by MLD

your actual lift is +/- 20mm front and rear over D130 factory. If you feel cheeky you can compare it to a D110 and say it's a 3" lift at the rear.

Hi MLD, it certainly seems from the measurements that there is even lift across the front to rear, however the more I look at the truck, the more obvious it is that it is sitting a lot lower at the front. I will try and embed a picture in this thread if I can work out how to do it.


Let me know what you guys think.