Rear bump stops -- optional or necessary?

[BigSwede]

I don't think the rear bumpstops serve any function other than to keep the tires from contacting the body.

[Ldub]

your hard cornering roll resistance will suffer as these crazy rubber eights are termed spring helpers by Isuzu. Cut them at your own peril.

I don't think the rear bumpstops serve any function other than to keep the tires from contacting the body.

Yeh...def 2 schools of thought on that subject...

I use mine to keep the tires from getting "over stuffed" all up in dat fender well thang...

[tom4bren]

I hafta agree with Dub & Swede (Did I REALLY just say that out loud???).

It doesn't matter what you call those rubber donuts. It doesn't matter what Isuzu calls them. They serve the sole purpose of STOPPING suspension travel (in a bone jarring, blood pissing manner). If they are engaging whilst driving on road, you have something wrong with your suspension (design defect or worn parts). They should NOT play a part in helping with on road body roll.

If you only have a fraction of an inch of distance between the bump stop & the axle housing ... & you don't want to cut the stop, then you should be seriously considering replacement coils (either OEM or aftermarket). Coil springs do have a tendancy to sag with time & use (lets see, I'll set 1000 lbs on this here coil spring & let it sit for 13 years ... I wonder if the spring will deform???)

Or better yet - do like Mav did & add an airbag inside the coil ... infinitely adjustable & air makes a nice cushy ride!!!

[vt_maverick]

Or better yet - do like Mav did & add an airbag inside the coil ... infinitely adjustable & air makes a nice cushy ride!!!

No need to argue about this subject anymore IMHO. Cut your stops in half to stop the jarring ride then install an Air Lift system to stiffen your springs and reduce body roll. You can cut the stops and install the Air Lift system in your garage and the kit costs $130. That's cheaper than new shocks, coil spacers, or new coils. Everybody wins!

http://www.vehicross.info/forums/showthread.php?t=22408

http://shop.airliftcompany.com/produ...g_Leveling_Kit

[tom4bren]

Mav,

Since you're the guinea pig on air suspension upgrade at the moment: What pressure do you run on yours?

Tom

[vt_maverick]

Mav,

Since you're the guinea pig on air suspension upgrade at the moment: What pressure do you run on yours?

Tom

When the VX is fully loaded for a trip (roof basket with spare and tools/fluids, hitch mounted rear cargo box, myself, wife, two kids, and dog) I run it at 30 PSI which is 5 less than the max rating. When empty I run it at 15 PSI which seems to give the right handling balance (little to no bouncing but without jarring your teeth).

The Air Lift system is nice to have too for leveling your vehicle while towing/hauling, which of course was why I bought it in the first place. So even if you buy them and don't like the empty ride while inflated you can always deflate them and just use them when you're fully loaded.

[tom4bren]

Yah, I have them on the RV (Firestone version anyway). Never had any info on what pressure to run them. Taking a shot in the dark, I started running them at 30 psi. It seemed to work. Glad to know that I'm within the max rating though.