Inverting overload/restraining leafspring

[nansky]

I have seen some AUV's especially Mits Adventures have modified/inverted
overload/restraining leafspring for the purpose of softening suspension feel.
I tried it with my ride - Isuzo Hilander which has basically the same platform with Crosswinds and Sportivos. It really improved ride comfort especially
for passengers at the back seats. Am I compromising safety over compfort?

[vinj]

I did this with my pick-up and theres no problem with it.

Unless you're really carrying loads to the limit of what is suggested for your car, you're not compromising safety. If you have reservations on carrying heavy loads then you can compensate a bit by adding gas shocks which are stiffer then the stock fluids.

[OTEP]

You are just lowering the load limit. But not safety in general. A full load of passengers would still not be a problem since your vehicle is designed to take much more than that.

[nansky]

Tnx for the replies. I'm now confident with the safety issues of my ride after
the modification.

[jaydel]

Tnx for the replies. I'm now confident with the safety issues of my ride after
the modification.

Sir Nansky,

How many leafsprings did you invert on each side? Or did you just invert the shortest one?

Thanks.

[nansky]

Sir Nansky,

How many leafsprings did you invert on each side? Or did you just invert the shortest one?

Thanks.

The shortest and thickest leaf otherwise known as the overload/restraining leaf was inverted on each side. It really softens the ride, less tagtag as felt by my regular passengers. More importantly, kung nag-iisa lang ako, hindi ako tagtag.

However, as a protective measure, I put rubber snubber on each tip of the overload spring to support added weight when the car is full of passengers.

[wingman]

The shortest and thickest leaf otherwise known as the overload/restraining leaf was inverted on each side. It really softens the ride, less tagtag as felt by my regular passengers. More importantly, kung nag-iisa lang ako, hindi ako tagtag.

However, as a protective measure, I put rubber snubber on each tip of the overload spring to support added weight when the car is full of passengers.

sir,

can u post pictures of ur mods if u have? it would really help me in explaining to the talyer. i own an xuv and wanted to modify my ride too.

thanks

[niky]

Where can I have this done? And where do I get that rubber bushing?

[nansky]

Where can I have this done? And where do I get that rubber bushing?

It can be a DIY job but you can visit any underchasis specialist shops for proper torquing of U bolts.

Rubber snubbers (4 pcs) were fabricated in our local bushing shops. I cost me 20 Pesos each.

If you intend to proceed with protective measure (optional), ask the mechanic to drill a hole (through machine shop or acetelyne) in both ends of the overload leaf for you to fit the rubber snubber in both ends leaving at least 1/2 inch space between the overload leaf and the succeeding leaf for free play during light load.

Please visit below site to visualize rubber snubber.

www.truckworld.com/How-To-Tech/ trek-master-01/trekmaster.html - 20k

good luck and have a comfortable ride.

[vinj]

Where can I have this done? And where do I get that rubber bushing?

I had mine done at Wheelers Susp. Haus in Banawe before. Most general talyers and underchassis shops should be able to do the job.

[x-wind]

I had mine done at Wheelers Susp. Haus in Banawe before. Most general talyers and underchassis shops should be able to do the job.

pic naman sir kung meron thanks

[nansky]

http://www.truckworld.com/How-To-Tec...rekmaster.html

[x-wind]

http://www.truckworld.com/How-To-Tec...rekmaster.html

may pm ako sayo sir

[jaydel]

Where can I have this done? And where do I get that rubber bushing?

Tutal punta ako sa Cruven bukas. Tanong ko kung ginagawa nila ang inverted leafspring.

[niky]

Thanks for the link, nansky... saved the page... I think maybe I can have this done at my suking shop...

[Lemon]

^Thanks for reposting.

[v22]

were you able to retain the original ride height of your vehicle??? or did it sag??

[nansky]

were you able to retain the original ride height of your vehicle??? or did it sag??

Based on my observation (I didnt' measure vehicle height before and after modification) there is only a slight decrease in ride height about 1/4 to 1/2 of an inch.But what is very noticeable is the compression of the suspension when you are fully loaded with passengers - the reason why I fit in the rubber snubber. After that, ok na.

After the modification, I can feel that the compression and extension of the rear suspension is limited to the up and down wheel movement in rough roads - less transfer of impact to the vehicle body.

This is just my observation also: The vehicle is better in cornering because hindi masyado komokontra ang rear suspension pag liko.

Nevertheless, I don't recommend this modification until all safety issues are addressed. That is why I am asking in puts from those who have undertaken this similar suspension modification.

[wingman]

sir,

how did you attach the home made rubber snubber to the overload leaf? the one on the website had a bolt on it for attachment. is it possible to drill a 1/2" hole on the leaf and tightly fit the bottom of the snubber into the hole? i wonder how long will the snubber stays on especially if it gets knocked by the upper leafs during heavy load or due to vibrations.

thanks

[nansky]

sir,

how did you attach the home made rubber snubber to the overload leaf? the one on the website had a bolt on it for attachment. is it possible to drill a 1/2" hole on the leaf and tightly fit the bottom of the snubber into the hole? i wonder how long will the snubber stays on especially if it gets knocked by the upper leafs during heavy load or due to vibrations.

thanks

In my case small holes were drilled through acetelyne, enough to fit the NO. 12 bolt and nut. I have experienced overload of passengers- officemates of my wife and kids after the christmas party: 4 in the rear; 4 adults in the middle plus 2 kids (kalong) and 2 beside me in front including my wife. After traveling from Manila to Cavite, I inspected the the snubbers' condition. Ok naman it stays in place although it needs further obervation in the long run.