alex g Posted January 27, 2017 Share Posted January 27, 2017 I've been thinking about converting my 88 R model from stud pilot to hub pilot. Has anyone done this and if so do you have any part #s for hubs. Mine is all Mack 12 f/a and rears 38s. Quote Link to comment Share on other sites More sharing options...
theakerstwo Posted January 27, 2017 Share Posted January 27, 2017 I would like to do that also.mine is a 44000. Quote glenn akers Link to comment Share on other sites More sharing options...
kscarbel2 Posted January 27, 2017 Share Posted January 27, 2017 The correct way to reach your goal is to contact your preferred local Mack brand dealer, or Watts Mack (provider of the BMT website) and provide them with your model and serial number off the vehicle identification plate on your driver's door. They'll take that information and submit a "changeover request" to Mack parts operations, who will research what parts would have been used had the truck originally been ordered/built that way. They'll provide the list of necessary parts to your chosen Mack dealer who can then order them for you. Quote Link to comment Share on other sites More sharing options...
6368 Posted January 28, 2017 Share Posted January 28, 2017 Ironic that i was just reading about this http://www.tru-bal.com product today and then i come here and see this post. Essentially it takes hub piloted wheels and recenters them to the studs.... making me wonder were stud piloted wheels better all along? Quote Link to comment Share on other sites More sharing options...
6368 Posted January 28, 2017 Share Posted January 28, 2017 Of course the whole thing made me chuckle thinking about people worrying if their hub pilot wheels were the tiniest bit out of true because i run spokes on my daily driver. 1 Quote Link to comment Share on other sites More sharing options...
Underdog Posted January 28, 2017 Share Posted January 28, 2017 Of course the whole thing made me chuckle thinking about people worrying if their hub pilot wheels were the tiniest bit out of true because i run spokes on my daily driver.I have used TRU-BALANCE in the past, and would not be without it on any hub Pilots. Quote Link to comment Share on other sites More sharing options...
dogg rescue Posted January 28, 2017 Share Posted January 28, 2017 Just out of curiosity why do you want to switch to hub pilots? They can be a total bitch to remove the inside dual if it has been on a long time. Quote Link to comment Share on other sites More sharing options...
superdog405 Posted January 28, 2017 Share Posted January 28, 2017 44k mack rears are about $250 a hub new from mack, I'll see if I can come up with a number. Check your hub close, late model stud pilot hubs where early hub pilot, had the flanges just not the newer style nut. My '95 CL was this way, you could drill stud holes out for bigger stud and be good to go ! I still have original set from that truck I kept for that purpose some day. Quote Link to comment Share on other sites More sharing options...
6368 Posted January 28, 2017 Share Posted January 28, 2017 9 hours ago, Underdog said: I have used TRU-BALANCE in the past, and would not be without it on any hub Pilots. Good to know. Always like to hear real world results. On their website they sell dial indicator type tools for checking your tires runout. Would be interesting to use such a tool on different types of wheel mounting systems. When i change the tires on the brockway i just use the old block of wood method. I'am not sure if the guys at the tire shop even do that. Quote Link to comment Share on other sites More sharing options...
Underdog Posted January 28, 2017 Share Posted January 28, 2017 Good to know. Always like to hear real world results. On their website they sell dial indicator type tools for checking your tires runout. Would be interesting to use such a tool on different types of wheel mounting systems. When i change the tires on the brockway i just use the old block of wood method. I'am not sure if the guys at the tire shop even do that.The centering tabs on my CX were deteriorated enough to where the steer wheels would not hold center. TRU-BALANCE saved me from buying new hubs. Quote Link to comment Share on other sites More sharing options...
Vladislav Posted January 28, 2017 Share Posted January 28, 2017 (edited) Actually stud- and hub-piloted wheels have different size of the central hole. That's not a great difference to spot by an eye if you don't pay attention to it but it exists. Hub-piloted wheel has the ID a bit smaller to fit a hub snug. Or about snag. So the idea of fit stud-piloted wheels on hub-piloted hubs is wrong on its very matter. People do it but get out of shape. Correctly - off the center. I had experience of putting hub wheels on stud hubs. Redrilled the stud holes and made recesses over them. Did it with a drilling machine using pilot tool and got fine. Was worrieing of the central hole to not clear my "stud" hubs but got Ok due to some corrosion or wear. My story was a different one though. I preferred to keep the truck original. As for hubs you can swap them using the same bearing's inner fit (and offset?) hubs of a different truck and an off-brand one either. For the axles you have on your R I can tell you the bearings ## and sizes since I have the similar setup in my trucks. Front: inner MH212049/MH212011, spindle OD 66.8 mm (2-5/8"), outer 45280/45220 44.5 mm (3/4") Rear: inner 582/572 82.7 mm (7-3/8), outer 563/567 73.1 mm (2-7/8") Actually you don't need hubs with almost similar bearings. Just ones with bearings of similar ID's to fit your axle tubes. Edited January 28, 2017 by Vladislav 1 Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment Share on other sites More sharing options...
ws721 Posted January 29, 2017 Share Posted January 29, 2017 On 1/27/2017 at 10:05 PM, Underdog said: I have used TRU-BALANCE in the past, and would not be without it on any hub Pilots. I was wondering about those. You think they worth the cost? Quote Remember if it's got a hood it's no good! Link to comment Share on other sites More sharing options...
Underdog Posted January 29, 2017 Share Posted January 29, 2017 I was wondering about those. You think they worth the cost?Especially on older units, where mating parts may be worn and allow movement. The steer axle sleeves make a difference in ride and tire wear for sure. Quote Link to comment Share on other sites More sharing options...
ws721 Posted January 29, 2017 Share Posted January 29, 2017 OK. Thank you for the info. I will buy those for my truck Quote Remember if it's got a hood it's no good! Link to comment Share on other sites More sharing options...
Underdog Posted January 29, 2017 Share Posted January 29, 2017 OK. Thank you for the info. I will buy those for my truckThe sleeves for drive and trailer are actually a tool used for wheel installation. They do not stay mounted on the hub. Keep them in your toolbox and use them over and over on any truck you're working on. Quote Link to comment Share on other sites More sharing options...
ws721 Posted January 29, 2017 Share Posted January 29, 2017 Where do you purchase this? Quote Remember if it's got a hood it's no good! Link to comment Share on other sites More sharing options...
Underdog Posted January 29, 2017 Share Posted January 29, 2017 Where do you purchase this?Tru-bal.com Quote Link to comment Share on other sites More sharing options...
ranchhopper Posted January 30, 2017 Share Posted January 30, 2017 You can call gunite that's where I got mine for the front axle tell them what the casting number is on your current hub they will cross it for you like they did for me. There is a place called find it parts they are drop shippers but get great rates on some parts I got my front hubs for just over a hundred dollars each shipped to me and they were not Chinese junk either. Find it parts is a crap shoot some parts are a fantastic deal some are not but its all brand name stuff worth a try though. Quote Link to comment Share on other sites More sharing options...
alex g Posted January 30, 2017 Author Share Posted January 30, 2017 Thanks I'll call gunnite. Also try find it parts after I get #sSent from my SM-G386W using Tapatalk Quote Link to comment Share on other sites More sharing options...
Hobert62 Posted January 31, 2017 Share Posted January 31, 2017 I second finditparts. If you put the item In your shopping cart for a day or two they always email me and give me an extra 5%-10% off. Like stated though some good deals some way over priced. Quote Link to comment Share on other sites More sharing options...
kscarbel2 Posted January 31, 2017 Share Posted January 31, 2017 . . Quote Link to comment Share on other sites More sharing options...
IH Farms 2 Posted May 26, 2017 Share Posted May 26, 2017 On Fri Jan 27 2017 at 9:31 PM, dogg rescue said: Just out of curiosity why do you want to switch to hub pilots? They can be a total bitch to remove the inside dual if it has been on a long time. One reason would be the brake drums are considerably cheaper like 50% bought cast drums in March for my stud piloted hubs 215 a piece. A 3600A drum which is standard hub pilot is 100 a piece or less. Quote Link to comment Share on other sites More sharing options...
Truck Shop Posted May 27, 2017 Share Posted May 27, 2017 Too bad your not closer to me, I have lots of Conmet steer and drive axle hubs hub pilot. Truck Shop Quote One ping only Link to comment Share on other sites More sharing options...
Popular Post Donny @ Global Truck Posted October 1, 2019 Popular Post Share Posted October 1, 2019 (edited) I've been getting many calls saying they have been referred on here, Big Mack Trucks. Thank you all first of all. And for those who are inquiring about the hub-pilot conversion, I thought I would respond. I stock complete axle conversions for Mack trucks 12K/14K, 18K/20K fronts and 38K, 44K, 46K/50K rears. An axle conversions includes: both hubs, drums, inner & outer bearing combinations, wheel seals, studs(4.75" hp w/ aluminums), flange cap nuts, abs tone rings if needed. We primarily service, sell & part out Mack trucks. Determining what you need, crossing, availability, pricing and all the troubles with these has been my niche on these conversions, figuring it all out and supplying the parts. If you're looking to do this, give me a call. I should add that I supply them for lift and tag axles as well. Also, with more going to hub-pilot, I have built up an abundance of good used spokes for all of these rigs; common, rare and obsolete. Donny Global Truck Traders (603)239-7008 Edited February 8, 2020 by Donny @ Global Truck 3 Quote Donny Jones Global Truck Traders www.gttparts.com (603)239-7008 Link to comment Share on other sites More sharing options...
wilbur Posted October 3, 2019 Share Posted October 3, 2019 On 5/27/2017 at 6:50 PM, Truck Shop said: Too bad your not closer to me, I have lots of Conmet steer and drive axle hubs hub pilot. Truck Shop Where you located.? Quote Link to comment Share on other sites More sharing options...
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