mowerman Posted Tuesday at 11:33 PM Share Posted Tuesday at 11:33 PM OK, thanks for that. Maybe a part of it was able to hang on. Quote Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595527 Share on other sites More sharing options...
Vladislav Posted Thursday at 08:52 PM Share Posted Thursday at 08:52 PM On 5/4/2026 at 5:58 PM, james j neiweem said: Did the H-65 look like the H-63? What was the difference/upgrade? Do you like this? Just go to the top of the page. https://www.bigmacktrucks.com/collections/item/867-h65/?tab=comments#comment-194 1 Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595620 Share on other sites More sharing options...
mechohaulic Posted yesterday at 01:07 AM Share Posted yesterday at 01:07 AM On 5/2/2026 at 4:26 PM, mowerman said: Also, I was wondering what year tow drivers started removing the driveshaft actually there wasn't a year involved with the removal of driveshafts. dropping a shaft had more to do with each individual situation. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595660 Share on other sites More sharing options...
mowerman Posted yesterday at 12:29 PM Share Posted yesterday at 12:29 PM I heard a long time ago alotta transmissions don’t get oiled in neutral … a couple years ago we saw an import pickup on a car dolly … rearend locked up somehow burnt both back tires clean off and was scraping both rims when the guys pulled over I’m not sure what happened there 1 Quote Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595665 Share on other sites More sharing options...
Popular Post mechohaulic Posted yesterday at 03:09 PM Popular Post Share Posted yesterday at 03:09 PM 2 hours ago, mowerman said: I heard a long time ago alotta transmissions don’t get oiled in neutral … a couple years ago we saw an import pickup on a car dolly … rearend locked up somehow burnt both back tires clean off and was scraping both rims when the guys pulled over I’m not sure what happened there driveshaft drop during tow done not only lack of transmission lube in neutral , front end up in air on hook took away even more lube . disconnected shaft eliminated all issues of burning up transmissions. there were times (foul weather -rain/snow) when decision to drop shaft or not was challenging. B-81's/DM's don't have a light driveshaft . crawling on the wet ground hoisting that .*^_+><?<:" shaft !!. can look back now a laugh ;except when back /body is concerned. stay in school kids get a real job!! 3 Quote Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595668 Share on other sites More sharing options...
mowerman Posted yesterday at 04:08 PM Share Posted yesterday at 04:08 PM Ha ha, touché on the real job my parents trying to tell me the same thing and my pup was a union Freight hauler. They used to preach the same thing. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595670 Share on other sites More sharing options...
Brocky Posted yesterday at 08:10 PM Share Posted yesterday at 08:10 PM I remember in the early 70's as a dispatcher for Matlack supervising a recovery, the shop foreman told me to be sure the wrecker driver removed both of axle shafts on the same side of the R-600 maxidyne / 5 speed and capped them with cardboard. I have to assume this did the same as dropping a driveshaft???? And a lot easier on a snow bank!!!! 2 Quote Brocky Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595677 Share on other sites More sharing options...
Popular Post tjc transport Posted yesterday at 10:39 PM Popular Post Share Posted yesterday at 10:39 PM i was talking to a younger "mechanic" a few years ago about tow/push starting cars with auto trans. he said no way, cant be done!!! he just so happened to have a 59 Pontiac Catalina as a daily driver. so i challenged him. "take the battery out, and have your wrecker driver push us up to 35 MPH." they both accepted the challenge. at 35, i told him to turn the key to run, and drop the trans from neutral to drive. he was amazed when the engine started. back then, the auto trans had a live pump connected to the output shaft of the trans unlike cars today with the pump connected to the input shaft of the trans. 5 Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595686 Share on other sites More sharing options...
Geoff Weeks Posted 23 hours ago Share Posted 23 hours ago 3 hours ago, Brocky said: I remember in the early 70's as a dispatcher for Matlack supervising a recovery, the shop foreman told me to be sure the wrecker driver removed both of axle shafts on the same side of the R-600 maxidyne / 5 speed and capped them with cardboard. I have to assume this did the same as dropping a driveshaft???? And a lot easier on a snow bank!!!! Really you want to remove all the 1/2 shafts, If you only remove one side, the spider gears in the diff get quite a work-out and no lube. You can chain up the front drive if you pull from the front, and just pull the 1/2 shafts in the rear drive as long as the front drive tires don't touch the road, it will be ok. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595690 Share on other sites More sharing options...
Popular Post mechohaulic Posted 22 hours ago Popular Post Share Posted 22 hours ago the wrecker always kept a few plastic axle caps (courtesy of the new deck sets which came in to dealership).till they went to HD plywood . ..hooking a tandem . front drive chained up to frame before raising with wrecker ; axles removed from rear drive then caped with plastic covers. NOT every hook needed all the extra work, every job was different. driveshaft(s) down or axles pulled ;;;; rain/snow /dangerous location ::: did a road call I=84 dealing with loaded gas tanker ===what rule book!!! fortunately it was many years ago< won't find my a-s-s out there today. don't remember ever hooking a H model :::(back on topic=LOL) 2 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595696 Share on other sites More sharing options...
mowerman Posted 8 hours ago Share Posted 8 hours ago Brocky I remember when I used to do that with the new ones a few years ago I haven’t really noticed that practice lately I’m sure pulling the driveline is alot cleaner 1 Quote Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595745 Share on other sites More sharing options...
mowerman Posted 7 hours ago Share Posted 7 hours ago TJ I did the same thing with a 62 impala years ago I had someone push me just out if curiosity… just like you explained… it worked Quote Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595748 Share on other sites More sharing options...
Geoff Weeks Posted 2 hours ago Share Posted 2 hours ago I don't know when all mfg stopped putting rear pumps in the automatics. Chry I think was around '66, I know my '65 had it. Don't know about Ford or GM, Mercedes had them way longer, may still have them IDK. You need pressure to apply the clutches/bands for it to work, no tailshaft driven pump, no turning the engine. Quote Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595780 Share on other sites More sharing options...
tjc transport Posted 21 minutes ago Share Posted 21 minutes ago Ford was in 64 with the introduction of the "green dot" C-4 trans. GM was around the same time. 1 Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595802 Share on other sites More sharing options...
mowerman Posted just now Share Posted just now I just assumed it was a torque converter, spinning fast enough to turn the engine over but then again I guess something has to spin the converter I have rebuilt a few myself. I can only remember one front pump on all of them one Cadillac three Fords Quote Link to comment https://www.bigmacktrucks.com/topic/76617-h-series-macks/page/2/#findComment-595806 Share on other sites More sharing options...
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