bones1
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Not to jump tracks . . . but, what are you using as steering on her rig? We've been running 395s on Mod'd Hemmits on the She Beast and I'm really thinking I need to upgrade to some kind of power assist for Elise. Some of the places we've been have def caused . . . lets say . . . a work out.395/85R20, my wife has had them on her truck for almost a year now, no rubbing issues at all even at full stuff.
Not to jump tracks . . . but, what are you using as steering on her rig? We've been running 395s on Mod'd Hemmits on the She Beast and I'm really thinking I need to upgrade to some kind of power assist for Elise. Some of the places we've been have def caused . . . lets say . . . a work out.
Not a good selling point when I'm suggesting we spend another month climbing over mountain passes on dirt tracks
My post was about the 395s being harder than the 9.00x20s to control doing something other than driving down the pavement. We have both and I, at times, drive them both. There is a dif.edit: Above post was misinterpreted. I'm assuming now, the author intended to say he is mounting 395s on Hemmit rims??? then putting on a deuce.
I guess you have to read several posts to understand this completely.
This thread is not about Hemmit rims, it is about MRAP rims and 395s.
If you are having trouble steering with MRAP 395s on a deuce, it is either an off road condition or there is something wrong mechanically. I doubt it is a case of putting "good" 395s on a deuce and it creating trouble over and above 9X20 NDTs. MRAP 395s generally make a deuce ride and turn better. If they don't, I would look further for anomalies in your installation.
Perhaps Hemmit rims are entirely different and your problem. I don't know, but it might be something worth investigating.
.I kept the wheels and tires intact. Truck rides smoother but wanders all over the road, like I knew it would until the camber fix this week. Need to adjust my brakes which are new as well then it will be a pleasure to drive. Acceleration if you call it that feels a little better to me.
Anyone know tire pressure to run in these MRAPs?.
I just used a bottle jack to jack up the leaf springs off the top of the axle, then put a little 2x4 where the shim was so as to not possibly damage the centering pins on the axle and spring.Also looking for some good pictures/advice on doing the camber mod that it sounds like most folks agree is needed when going to radials. Gringeltaub had a good drawing somwhere about removing 5/32" from the spring shims, but I'm curious what the best/easiest way to support the axle & lift the truck so one can remove the shims to modify.
Why is it hard to stear? or just wondering?I will tackle the spring perches this week, as I can barely steer the truck right now.
Thanks Angus, I will try them at 85lbs and see what happens
If you ran 25psi in a MRAP 395, it would be 5mph max and you would be doing that for sand or mud off road conditions only. They would essentially, be all but flat.I thought I read somewhere that for even tire wear about 45 in the front and 25 in the rears?
From the "MRAP wheels and tires on a deuce?" thread:If you ran 25psi in a MRAP 395, it would be 5mph max and you would be doing that for sand or mud off road conditions only. They would essentially, be all but flat.
I recall hearing something like that for NDTs. I pretty sure the norm for paved road MRAP 395s is going to be closer to the 80-110psi range.
I'll see if I can find my sources. I haven't given up yet. I have found numerous pictures on the web with the TP listed above the wheel but I cannot make it out, even with magnification view. It just gets to distorted, but I have seen one before that was clear, and I honestly thought that one said 105PSI.
Here's a couple of online pics that show the difficulty in reading the TP. Maybe someone with younger eyes can make it out.
Not saying I know anything, I still haven't tested mine out, just what I read.It is going to take some getting used to. Feels like a whole different truck. She does want to wander a tad and the steering is touchy now. Still working on getting the air pressure just right. Right now it is 40 in the front, 25 in the rears and still riding on the center a little bit. The rears are almost there. As far as Deuce, (doggy) his ears want to stand up so bad!
Bones, Please let me know if you try this and what your results are. Gringeltaube knows his stuff.I tried to respond to your last PM by attaching a little drawing. But for some reason that didn't work so here it goes:
1) ...what you can do as a temporary fix or trial, (just for a short test ride!) to determine if milling/grinding the spring seats will solve the wandering issue or not. (Note that the seat has a notch so that it does not interfere with the welding seam on the axle tube; if that was your concern...?)
2) ... what I have done so far to increase CASTER. (already posted somewhere, earlier on)
G.
On the She Beast we are running 45 front and 35 rear, that's on a 109 that has more weight on the rear. Started at 75 and kept dropping it till the tires rode flat on pavement. Also helped w/ it wanting to change direction every time she hit a bump. Have only dropped it 5lbs to offroad, and that was in the softest sand. Doesn't really seem to need it as those tires just don't sink. I took some photos of our trucks in the same sand w/ 9x20 NDCC's on mine and 395's on hers, mine is in up to were the trend ends on the sides and hers is only lug deep.I would think it should be about the same as what the recentered HEMTT wheel guys run with 395's wouldnt it?... not that i know what that pressure is though. I'll stay tune to the answer myself on this one. LOWTECH, what kind of pressures do you run on & off road?