army spring hangers

**micksta323** · 4th April 2008, 07:36 PM

has any one fitted extended army spring hangers to a civilian series 3 and found that the angle of the front prop shaft joining the front diff input shaft sits at a very ugly angle? i think it may be contacting at certain times.

mick.

**LandyAndy** · 4th April 2008, 07:54 PM

YEP!!!!
The Ser3 in My shed has,only 1 real way is to make new dumb irons copying the Army style chassis,which I did.
The other method would be to get some wedges made to re-alighn the diff.
Andrew

**micksta323** · 4th April 2008, 08:09 PM

i've heard the term dumb irons before, what exactly are they?

mick.

**LandyAndy** · 4th April 2008, 08:10 PM

I dug a pic up for you.Its the 1st of the 3.

I cut the originals off,made a new inner tube,welded the old on then plated the hangar,finished job looks factory!!!!
Other pics are cutout in engine xmember to allow extra tailshaft travel and chassis cutout to allow oil lines for remote oilfilter to suit ford cleveland V8.
Andrew

**micksta323** · 4th April 2008, 08:21 PM

not trying to sound dumb, but what exactly am i looking at? is it the front spring mount. i took the hangers of my spare car which is an army ffr, and i cannot see a difference. i think i'm blind!

mick.

**LandyAndy** · 4th April 2008, 08:26 PM

Hi Mick
Its the first pic.
Looks different as I have a custom crossmember across the front so the one that holds the steering relay could be removed to siut the ford V8,and the chassis was upside down at the time the pic was taken!!!!.
The dumb irons are the front spring hangers.
Civilian ones are very different from Army,look again at both of yours.
Andrew

**micksta323** · 4th April 2008, 08:31 PM

i've seen that the army chassis is heavily reinforced around the front spring mounts. i'm guessing that they sit lower down (extended) compared to a civillian landy. i have also fitted the longer bump stops from the ffr, but have since read that may prevent upwards suspension movement? sound correct to you?

mick.

**Lotz-A-Landies** · 4th April 2008, 08:32 PM

Originally Posted by micksta323

i've heard the term dumb irons before, what exactly are they?

mick.

Mick

I have always known the "dumb irons" to be the protrusion at the front of the chassis where the bumper bolts on in a Land Rover. However I am also lead to believe that in early days of the automobile they were the front part of the chassis that held the front of the springs.

After doing lots of damage to other objects and people these were fitted with a cross bar for protection. Now called a bumper bar.

Diana

**micksta323** · 4th April 2008, 10:32 PM

well now i'm confused. i would have thought that the front spring mounts would just be called front spring mounts? not to ignore anyones advice, but anyone else out there have any ideas? my first thought was to change the angle of the diff mounting pads to an angle more compliant to the prop shaft angle. cheers.

mick.

**Lotz-A-Landies** · 4th April 2008, 11:23 PM

Originally Posted by micksta323

well now i'm confused. i would have thought that the front spring mounts would just be called front spring mounts? not to ignore anyones advice, but anyone else out there have any ideas? my first thought was to change the angle of the diff mounting pads to an angle more compliant to the prop shaft angle. cheers.

mick.

Unfortunately the Rover manuals (workshop and parts catalogues) are not much help with terminology of the chassis elements. Even the engineering drawings I have of the S2B "frame" only calls the parts to connect the front of the springs a "bracket" and the rest called a "side rail".

So the front "spring mounts" as you suggest are usually called "spring brackets" or "spring hangers" (as they hang the spring, which itself is a misnomer).

The rear ones on each spring are called chassis bushes and shackle plates. The bolts are all called shackle pins - even though the front ones don't go through "shackles".

The front of the chassis, I know as a "dumb iron" is only called the "front of the frame side rail" by Rover Co. Ltd. technical writers and draftsmen.

Regarding the front diff. The stage 1 Series 3 diff is rotated to a slightly different angle to the series 2a axle housings (see a recent thread wanting Maxidrive actuator plate). If you wedge the housing (or similar mod) you are likely to increase the chance of "bump-steer" as you are also rotating the swivel housings as well. The easiest option would be a Stage 1 Series 3 front axle housing if you can find one.

Also in the pic several posts above showing the cross member with the semi circular cut-out is wrong, when compared to the original spec of the military and in fact the forward control chassis (which is where the original design came from). The Cut-out is only on the front side of the cross member and angled up at 45 degrees - just to clear the prop shaft on the front edge.

Choose to ignore my information if you like.

Diana

Thread: army spring hangers

Thread Tools

army spring hangers

army hangers

army hangers

army hangers

army hangers

Bookmarks

Bookmarks

Posting Permissions