Trunnions

[jamescaulkett]

I found a lowering trunnion kit on Ebay, does this mean it will lower the whole car?[frame][/frame]

[bmcecosse]

Welcome to the forum....... 'Lowering trunnion kit'...... I seriously doubt it! Can you post up the link?

[jamescaulkett]

Hi, cheers, they do a left hand kit and a right hand kit but it has no description so.. bit dodgy

http://www.ebay.co.uk/itm/MORRIS-MINOR- ... _500wt_717

[bmcecosse]

I do see a number of 'LOWER' trunnion kits........ ie these are intended for the lower end of the king-pin, and won't fit the upper end of the pin........

[jamescaulkett]

right.. I don't really know a lot about it so what exactly does that mean haha

[oddbod]

Welcome to the forum!!! If you are looking to lower your car,be aware of the pitfalls. Lowering the front WILL cause the Upper Trunnions to impact on the inner wings,more so if you remove the Bumpstops,and cause welding to be needed in that area,an MOT fail ,and lowering the rear,in my experience,causes the Rear Spring Hanger,the hole in the chassis where the rear spring is located,will also suffer from impact damage from the lowered suspension and need extensive welding for the MOT . My Moggie just failed its MOT because of being lowered without doing it properly (if thats possible)

[jamescaulkett]

thanks I see, all seems complicated, so basically I would need to look out where it would knock on the body work? so could i just cut out and weld?

[chrisryder]

Welcome to the forum, and morris-minor-ness. I can see where you've got your wires crossed, an easy mistake to make!

The front suspension is made up of trunnions and swivel/king pins. The swivel pin (or king pin) is what turns when you steer, and it pivots at the top and bottom in trunnions. With one being top and one being bottom, they are referred to as 'upper' and 'lower', which is where you've got confused. Hopefully the following pic will help to explain what i'm talking about.

[frame][/frame]

[jamescaulkett]

thanks ahh I see, so is there any easy way of lowering it?

[Alex'n'Ane]

thanks ahh I see, so is there any easy way of lowering it?

Yes, plenty of threads on here about doing it. But why do you want to lower it? And by how much?

[bmcecosse]

As advised already - DO NOT 'lower' it - you will only cause major damage. Concentrate on getting improved wheels/tyres - and better brakes !

[oddbod]

And before BMC says it,change the damper oil,its a lot less work than lowering the suspension, AND improves the handling.

[chickenjohn]

No need to lower the Morris Minor's suspension. It will only make the car worse. Just enjoy your Minor as it is.

The main consideration of the trunnions is regular greasing with a grease gun every few thousand miles (or more often!)

[Alex'n'Ane]

No need to, but many people prefer the look. You can easily lower it 1.5" front and back. And surely the lower c of g would reduce roll?

[oddbod]

The lower CofG does reduce roll, but unless you know what you are doing lowering a Standard Moggie will result in unexpected damage ( I only know cos someone lowered mine before I bought it ) to the inner wings where the bump stops mount,and to the Rear rear Spring Hanger,as the Chassis or Upper Trunnions are effectively the Bump Stops

[chickenjohn]

If you want to reduce body toll then the obvious answer is to fit an anti roll bar.http://morrisminorspares.co.uk/shop/pro ... cts_id=378

[Alex'n'Ane]

If you want to reduce body toll then the obvious answer is to fit an anti roll bar.http://morrisminorspares.co.uk/shop/pro ... cts_id=378

The last thing I want is more understeer!

[autolycus]

Should people who lower their suspension notify their insurers?

What has been the response from any insurer who has been told? (If I were an insurer, I'd ask for calculations and before/after instrumented test results on the handling under normal and extreme conditions. Then say "no", probably)

Kevin

[chrisryder]

when i told FJ that i'd lowered it, they asked by how much. I told them 1.5 inches, as that's approximately what i'd done, and they said 'that's fine, there's no charge until you go over 2 inches, but you still have to declare it'.

[oddbod]

Does that mean that I have to notify insurers if I put a lowered car back to standard height ?