Originally Posted by Brutus Well i know this coz i have been offroading for quite some time and notice what people around me do. I have been restoring jeeps for quite some time and i own a 65 willys Cj3b LHD, and a 75 RHD Cj3b, both petrol(the Cj3b had been converted to diesel but reverted back).The jeep suspension as it is not a great articulator. As tried on a Ramp a Military jeep or the old willys had a very stiff suspension. You take out springs and limit them to 7 springs at the rear and then its equal to the articulation a gypsy could manage with one wheel on the ramp and the other touching the ground. The front suspension of the Gypsy was better than the classic too, when both of them had the stabilizers intact, and this way the old jeep, willys ,which never had stabilizers,seemed to have a better articulation that both of them, but when we removed the stabilizers of the gypsy it was more flexible than either jeeps.
The Bolero 4x4 has leaf springs front and rear(with stabilizer at the front only), with a lot longer and flater springs than the jeep , therefore making them a way lot more flexible. Also the fact that it uses broader springs than the jeep , helps it make do with a lot lesser springs to lift the same amount of load(and everybody knows lesser spings make for a more flexible vehicle). Even with the stabilizer at the front the Bolero had much more articulation than either of them, and removing the stabilizer caused the wheel to touch the wheel arches much sooner than it did with the stabilizer. Also the fact that when a vehicle articulates,15% of the flexing is done by the chassis. The CJ3B chassis were very rigid, even more than the jeeps before it (the MB,GPW,CJ2A, but not the CJ3A)as they had one crossmember less. The Boleros boxed chassis is a lot more flexible than the Cj although the gypsy comes close(And even the new Army 540/550 have a shortened bolero chassis,with the Boleros open knuckled front axles) And please do not include the Invader here, its got the crappiest rear suspension yet.
As it is, the jeep is not a articulation miracle, and it wasn't meant to be in the first place. It was designed to filfull its primary role of carrying the GI's and their equipment in normal offroad conditions, not the kind of offroad terrian we intend to make them do in OTR's, and since a military vehicle is bound to be abused, and therefore also made to carry heavy loads, the designers by default had to stiffen the chassis and add a few more springs than what normally would have sufficed. I have kept both the jeep and the Bolero long evough to know which is better. Whats more is the Bolero seemed to have just the right amount of weight distribution which helps it in overcoming obstacles. In the Jeep the majority of the weight is placed at the front making the rear feather light, which adds hurdles to the marginal controlling qualities of the jeep, due to its light weight.
And when i said the indian scene is not too keen on Articulation is because there are very few people who think of doing up the suspension before they think of purcuring diff-locks. If you add a suspension lift, the extra arch in the spring diminishes articulation even further. What it needs is a broader, longer and flater set of spring or just a coil spring makeover. Even if you talk of adding offroad shock absorbers for better articulation ,then leaving only a handful of people , who are thoroughly into offroad, nobody else even thinks about it. Most of the people in India just want to own a jeep for the image it portrays. Offroad for them is a stroll on the beach or at max a safari or a hunting expedition. The maximum alteration they do is to put in more lights and maybe add a winch, purely for cosmetic reasons, never venturing anywhere near the suspension. And i dont blame them either,coz unlike America, most people here are much happier getting the job done by mechanics, never bothering about how things work, so they dont understand the concepts. When people start venturing out on OTR expeditions, its only then that they realize what they have been missing after they see what other people do to their jeeps and try to learn from them. And how many people here are offroaders, only a few people that i see often enough. And then there are a few more who aint offroaders but do understand mechanics quite well, most being restorers. Ask the rest and they would'nt know how a diff lock works, let alone the mods that need to be done to increase articulation.
please dont think i intend to offend anybody, and if its seems so, try and understand that it was not my intention at all. All i am trying to do is share imformation with like minded people.
Regards,
Bikram |