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77K5. The IronMaiden...9/2 headed for Blazer Bash 20!

jack of all trades build, overland, dunes, rocks, trails
Overview Gallery Discussion
76zimmer said:
I'm not sure if the stock kingpin springs are still in there or what, but it needs something, and perhaps the fact that I got a 7*(?) shim under the springpack (for pinion angle correction) might be contributing to the problem?
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Yes, you may have just created negative caster with that much shim, some of the older axles only had 4 degrees of caster to begin with. You want at least 5 degrees of positive caster, preferrably more like 8, which is what the factory went too in the later axles. Mine ended up with 9 or 10 after I rotated the Cs, went a degree or two more than I should have even after all the measurements, but it handles great that way.

76zimmer said:
The Vette is overdue for at least one last drive this fall....I don't think I'll bother getting it to the track until I have more time to devot to tuning it more.
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What do you mean, the track is the BEST place to tune it, not the place to go after that. :waytogo:

miniwally said:
The Bronze bushings wear before the king pin. The King pin is harder material therefore the bronze gives first. I have spring less arms on the buggy/race car and love it. Set the load bolts and walk away.

If you have ever taken a king pin apart that has sustained a massive impact you do find the plastic is broken but given the design of the knuckle the plastic just breaks but is tightly contained in the Knuckle. I have broken at least 1 knuckle, didn't have a new plastic and just installed the broken plastic back in the replacement knuckle and it was tight on the king pin and in the knuckle. Drove on that broken plastic for a long time, but I have full hydro steering on an offroad only vehicle that had low tire pressures and 42" tires on it all the time.

I can understand your theory about the plastic being a good buffer on a big hit but it is a very small buffer and doesn't save the knuckle from breaking in real world experience. The bronze bushings take away any slop the plastic may have and the load bolt is a very positive pressure that can't change like the springs do when they fatigue and you have to add washers. I think the bronze bushing is well worth the money and greatly overcomes any downsides it may have.
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Thanks for the hardcore feedback Brandon, you definitely use your rig harder than I do so it's good to hear the outcomes of your experience. I haven't broken a knuckle (hope not too). I think you definitely have more reason to run that springless setup on your race rig than an all around rig that's for sure.

I guess I meant the spring is more of the buffer than the plastic, but if the knuckle still breaks then I guess it doesn't matter.

Don't you have to readjust the preload as the bushing wears? I thought the spring was there to be self adjusting as everything wears in. Or have you found that the initial adjustment lasts a very long time?
 
I can't say what kind of mileage or time frame the pre-load lasts for. It seems like we had a lot more adjustment when they were brand new, and now that things are wearing in and mating up there is less adjusting.

We have the front axle apart before every event, I think we did the spring less arms for KOH and after about 70 miles or pre-running we checked the pre-load and it was a little light but not bad at all.
After KOH when I took the axle apart they seemed to have held well, once again just a bit light but still fine.
After the SS300 pre run, 300 miles of desert and about 80 miles of highway they were fine.

Like I said it really seems that they just need some wear time to seat in. During that time they do loose pre-load but it's not bad. After they seat in I bet you would check pre-load at tire rotations for a while then just forget about them and drive.
 
Got a picture of old Faithful today on my cell around 4:00 p.m. Central time.
 
Sweet.

Doesn't let any grass grow under his feet, does he?
 
yah Zim left Idaho Falls early this morning.

He should be about 3/4s of the way through Wyoming about now
 
Zim got to Kerts safe and sound sometime this ( saturday) afternoon evening.

He should make it back plenty of time to spare

Super cool pic

photobucket-6922-1316923419090.jpg
 
Ahh darn ya beat me to it Eric. Guess I'm not zims pic bi*** anymore lol. Whatever will I do with my free time:haha:
 
Deuling said:
Ahh darn ya beat me to it Eric. Guess I'm not zims pic bi*** anymore lol. Whatever will I do with my free time:haha:
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LOL Adam I thought it would already be posted he sent me that at like 1 my time and I didn't get it posted until like 11 my time.

I am ssssssssssslllllllllllllllllllllllllooooooooooooooooooooooooooooooowwwwwwwww
 
Zim and John, left my place around 8:00 p.m. on their way to Waterloo IA. There last stop for the day. Had a good long chat, showed John some of the equipment in the shop and some of the things we do. Talked Crew cabs and decided Dave got the little crew cab version according to the picture.

Found some 16" dually wheels floating around the shop that Dave was interested in as well as some trim pieces for his Crew Cab and off they went.

Said the new tow rig was performing well and 9mpg on the flats and for some reason, better up through the mountain passes.:dunno:
 
Nice try, I see water that has run from where the truck isn't parked and pooled slightly under the truck...
 
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