: CTM portals
broncorob 06-25-2002, 07:21 PM Anyone talk to Jack at CTM about those 9" portal axles he's got advertised? I don't really want to waste his time on the phone because I don't have any intention of buying new axles right now, but would be interested to hear about them. :beer:
Jeepskickass 06-25-2002, 08:11 PM John Reynolds has them on his Bronco. I think they run somewhere around $10,000 for a steering axle. :eek: Badass, though. 42 inch Swampers, 21 inches of ground clearance.
evilfij 06-25-2002, 08:32 PM I got a set of volvo portals on the way. As soon as they arrive I am going to pull a hub apart and see if I can get a 297 sized CTM in the housing where the cv is. I am sure it can be done as the cv is not much smaller but I don't know for sure. The stub axle on a volvo is 2 1/16in and the spur gears are huge so the "weak" parts are upspream of the reduction, so i figure if I end up breaking one (ha!) I can go to a CTM with a hi-tuf inner axle. If I get to that point I would likey go to 30 spline or rover 24 spline in place of the stock 27 spline.
Guess I am just saying that if you really want to you can build something for less than 10k an axle. (I am into the portals for 2k for the pair, CTMs and alloy inners probably would be around another grand). But for me and my rig now I highly doubt I will need CTMs so I am doing it as more of a CYA in case i break as Volvo portal parts are not easy to come by.
Ron
Originally posted by evilfij
I got a set of volvo portals on the way. As soon as they arrive I am going to pull a hub apart and see if I can get a 297 sized CTM in the housing where the cv is. I am sure it can be done as the cv is not much smaller but I don't know for sure. The stub axle on a volvo is 2 1/16in and the spur gears are huge so the "weak" parts are upspream of the reduction, so i figure if I end up breaking one (ha!) I can go to a CTM with a hi-tuf inner axle. If I get to that point I would likey go to 30 spline or rover 24 spline in place of the stock 27 spline.
Guess I am just saying that if you really want to you can build something for less than 10k an axle. (I am into the portals for 2k for the pair, CTMs and alloy inners probably would be around another grand). But for me and my rig now I highly doubt I will need CTMs so I am doing it as more of a CYA in case i break as Volvo portal parts are not easy to come by.
Ron
Boy, have you got a lot of homework to do, you aren't even close, my friend.
I'm not sure CTM has the time to do custom portal 9" axles with his new fame (he is making U joints by the thousands).
Jack did say he would make the shafts to join the 'mog to the "9. that is if you know the dimensions.
My axles were comparable in price to 60s.
evilfij 06-25-2002, 10:51 PM What do you mean I am not even close?
My axles are nothing like the 9in Mog combo. Sorry if I gave that impression. I was just offering an alternative to a 10grand piece of unobtainium to give the guy some ideas.
I am sure the Mog 9in hybrids are the :nuke: all I can hope for is adequate for my needs and if not, then I'll upgrade the inners.
Ron
Originally posted by evilfij
I am going to pull a hub apart and see if I can get a 297 sized CTM in the housing where the cv is.
CVs give half the angle of misalignment. They are stronger by design. Why would you want to replace them with single phase u joints?
Originally posted by evilfij
CTMs and alloy inners probably would be around another grand
Guess again.
Originally posted by evilfij
the "weak" parts are upspream of the reduction,
This is the one that gets me. You assume that Volvo didn't know what they were doing when they built hundreds maybe thousands of these things. There is a reason why parts are smaller up stream before the gear reduction. Up to half the torque is placed on these parts because of the gear reduction. They don't need to be big. In fact it's better if they're small so that shock loads are better absorbed.
Look I'm not trying to put a wet blanket on your project, in fact I'm all for it. I like the fact that the Volvos are smaller/lighter.
But some of the things you are saying, just aint so.
broncorob 06-26-2002, 05:59 AM JR,
Your portals $ comparable to 60s :confused:
I thought yours were a custom one off kind of job. Did Fatcity build them? I'm sure I could search and read more than I ever want to know but since you're in the discussion I figure you can tell me. So where did you get them and how are they made(9"/mog hybrids?).
Thanks for the info. Nice job at TTC
oldjeep 06-26-2002, 06:19 AM Originally posted by JR
My axles were comparable in price to 60s.
Well, I paid $50 for my rear D60, so If that's the case, I'll take 2 pair of those portals :D :D
Are you talking a Dynatrac D60 or the non gold plated type?
Well, I paid $50 for my rear D60, so If that's the case, I'll take 2 pair of those portals :D :D
and there is probably someone on here who paid $25 for theirs, or better yet, someone paid them take the axles away :flipoff2: :D
notcrazyjustNuTz 06-26-2002, 08:24 AM Originally posted by Jeepskickass
I think they run somewhere around $10,000 for a steering axle. :eek:
Wife wouldn't have to lift a foot, if I spent that much on an axle I'd kick my own ass :rasta:
Magoo 06-26-2002, 08:30 AM I got a rear for my truck for nothing.:D Working on one for my HEEP that's already shortened needs rebuild for 200. Now I need to find a D60 for the front of the truck so I can retube the HP44 for the HEEP.:D
Magoo 06-26-2002, 08:30 AM I got a rear for my truck for nothing.(40,000 miles on it):D Working on one for my HEEP that's already shortened needs rebuild for 200. Now I need to find a D60 for the front of the truck so I can retube the HP44 for the HEEP.:D
taradon 06-26-2002, 09:46 AM Last time I checked, CTM was around 4500US for a 9"/Mog steering axle with a pinion brake.
It sure the hell isn't 10 000 per axle.:barf:
Well, I paid $50 for my rear D60, so If that's the case, I'll take 2 pair of those portals :D :D
and there is probably someone on here who paid $25 for theirs, or better yet, someone paid them take the axles away :flipoff2: :D
evilfij 06-26-2002, 05:48 PM Hey JR.
Yes I know the weak parts upstream are effectively stronger by the reduction (2.1ish for a volvo). But if you compare the stub and spur gears they based on my guessimate and half-assed math are more than twice as strong as the inners, thus my conclusion is that the inners will need to be upgraded first. Seconding guessing volvo, hell yes, just like CTM is second guessing spicer. For the intended use stock is fine. You want more you got to upgrade. And for me this means inners that are made of something I can find and most likely won't break.
"CVs give half the angle of misalignment. They are stronger by design. Why would you want to replace them with single phase u joints? "
Humm, the cv is about the size of a toy birf or rover cv. We will let the gallery decide which is stronger, a D44 sized CTM or a cv :)
"CTMs and alloy inners probably would be around another grand"
Guess again."
CTMs are 300 a pair and I can get custom inners for 600. some machine work on the side gears if need be and I am right at a grand. I would not be bugging jack for custom inners.
" In fact it's better if they're small so that shock loads are better absorbed. "
To a point yes, but hy-tuff is quite interesting as one of its properties is that it is quite elastic, so my gut tells me any increase in shock loads will be minimal, but I dunno for sure. I am certianly not goign to lose sleep over it :)
So yes I have done my homework but as always take it FWIW.
I do apprecaite the comment as yes I do believe that the end product of a modified C303 portal is going to be intetesting. Its really too bad that my rig and driving is not really in a position to test it to its limits. I am still light years away from TTC.
Ron
lowrider 06-26-2002, 06:28 PM What is your source for the volvo axles and how much are they costing you?
road1will 06-26-2002, 06:35 PM hey JR, i think you are letting YOUR fame get to your head a little bit, quit steppin on the guy like hes dirt. we know you have a kick ass rig, awesome axles, and can drive like the best of them. but leave ron alone, hes pushing his own personal envelope (and checkbook, im sure) doing this and im sure it will turn out great.
not everyone needs $4500 axles in a $65,000 rig to be happy.
Originally posted by evilfij
Ron
Is it quad steer?
Jack charged me a grand to do 4 shafts. He said he lost money making the shafts because they are so labor intensive ( the side of the shaft that mates to the cv is trunion in shape, not splined)
With this info, I don't see how you could do it all for a grand.
CVs in steering axles are supported on both ends via (bronze) bearings, unlike CVs on drive shafts which integrally rely on center mounted (small) bearings. This makes the steering CVs stronger.
Lets let the gallery that has experience with steering CVs decide which is stronger. :)
Ron, have you talked to people that have had problems with C303s, I mean, have they broken parts? Or are you chasing problems that aren't there?
If a toy birf. holds up fine to a 30" tire, than the same birf will hold up fine with a much bigger ( though probably not twice as big) tire if it has half the stress due to the 2:1 reduction.
9-volt, evilfij can defend himself just fine. When I see my rig and name on a thread, I just might respond,especially when it's a topic that I know a lot about. We'er just having a discussion (argument ha,ha,). J.C, this is POR after all! Besides, we're having fun. :D
My axles aren't in the planning stages, they're done.
Ron, no offense :D
evilfij 06-26-2002, 09:17 PM No offense taken JR. :flipoff2:
Thats what I like about POR. Everyone gets a voice. The TTC winner and me. This has not yet degraded to argument.
I have not talked to anyone with any problems with the volvos, then again I know of only about 6 people that have them. Most are in malaysia (internet is a wonderful thing) All of them are on 35s or so. I would like to be on 38s or so (I have some 16x9.00 36in michelins for it now). Stock C303s ran 35s and had quite a payload and they never gained any rep for breakage (to my limited knowledge) So I am basing me concern on the fact that the cv is a hair over 3in in diameter (ie small) and the inners are only 27 spline.
My axles are somewhere in the atlantic right now so we are a little father along than the planning stage :) As soon as they get here they are going on and I am wheeling them until I have the upgrades figured out. I have litterally been looking for over 2 years for a set (they are seriously unobtainium). My logic has been covered elsewhere but basically they are BOLT ON for my rover. Given that I have invested so much time in finding them, I want the to not break and leave me trying to find another one.
It is not quad steer (this is extreme enough for me for now). CTMs would be off the shelf normal ones and the inners I can get made (one pair) for 600. So there is the grand. Obviously to do two steer axles would be more, however a set of non steer rear inners would not be too much $$$.
I am not sure I agree that a stock cv in the rear steer would be stronger than a 44 sized CTM so I am waiting to hear from the gallery on that one :flipoff2: I can tell you with certainty that a rover cv breaks WAY before a stock 297 u joint in a front axle.
As far as my source, I am getting them from my importer. As soon as they get into my grubby hands I will tell everyone how to get in touch with him. He only bought two sets (I got one the other is going to someone restoring a C303) but he is looking for more. I paid 2k for the pair including wheels and springs, they come stock with vacuum lockers (easily converted to cable).
For the platinium card set xtremeaxle.com sells C303 axles for ~8000 a pair.
Ron
Originally posted by evilfij
Seconding guessing volvo, hell yes, just like CTM is second guessing spicer.
Ron
BTW, CTM is not second guessing spicer, CTM is meeting the challenge of Warn and Moser (axles).
I think what you're doing is cool :D What are the axles going in anyway?
marilyn 06-27-2002, 12:21 AM Originally posted by 9-Volt
hey JR, i think you are letting YOUR fame get to your head a little bit, quit steppin on the guy like hes dirt.
not everyone needs $4500 axles in a $65,000 rig to be happy.
You seem like a pretty happy guy. Tell us, what's your secret?:D :flipoff2: :D
road1will 06-27-2002, 10:43 AM Originally posted by marilyn
You seem like a pretty happy guy. Tell us, what's your secret?:D :flipoff2: :D
a rig i built with my own two hands that i am proud of and wheel the piss out of.
Rerard 06-27-2002, 11:15 AM The secret is to keep on keep on-in, life's a garden...dig it.
Hey 9v your thing under your name used to be my sig! Retard-e .. its really classy like :)
RockRover 06-27-2002, 11:26 AM Originally posted by evilfij
My axles are somewhere in the atlantic right now...
Ron
Damn Ron...Bummer.
--D
road1will 06-27-2002, 11:34 AM Originally posted by Rerard
The secret is to keep on keep on-in, life's a garden...dig it.
Hey 9v your thing under your name used to be my sig! Retard-e .. its really classy like :)
lol its pronounced DEER-TAY. :laughing:
evilfij 06-27-2002, 05:35 PM Ok, they are somewhere ON the atlantic Doug. Not in it. They might even be at the port by now.
JR, they are going under my 1959 Land Rover SWB P/U. Except for a little brake piping and the spring mounts they are bolt on.
Ron
Jeepmangled87 06-27-2002, 09:22 PM any pics of this Bronco I wanna see theese axles.:eek:
Originally posted by 9-Volt
a rig i built with my own two hands that i am proud of and wheel the piss out of.
Originally posted by 9-Volt
http://www.pirate4x4.com/forum/attachment.php?s=&postid=662682
Did you mean to say with your own one hand?? Maybe you should stay on the Chit-Chat.:)
Wheelr 06-27-2002, 11:11 PM :laughing: :laughing: :laughing: :rasta:
Originally posted by Jeepmangled87
any pics of this Bronco I wanna see theese axles.:eek:
I'll put some axle pics up when I get home from work.
road1will 06-28-2002, 08:36 AM lol, i didnt know that that chop would be such a hit, i thought it sucked! lol :D
Originally posted by JR
http://www.pirate4x4.com/forum/attachment.php?s=&postid=662682
Did you mean to say with your own one hand?? Maybe you should stay on the Chit-Chat.:)
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