DCR Posted September 28, 2013 Share Posted September 28, 2013 I am looking at a 1986 MH613 with Mack rears. Forged in the housing is 64KH595 P4. Can anyone tell me the rating of this rear end. It is a tandem. Quote Denny330-550-6020A "Mack Pack" Charter Member Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/ Share on other sites More sharing options...
j hancock Posted September 28, 2013 Share Posted September 28, 2013 There is a machined pad on the right front corner of the carrier that will have the ratio stamped in it. Don't think you can get the ratio from the casting number.Jim Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208863 Share on other sites More sharing options...
j_martell Posted September 28, 2013 Share Posted September 28, 2013 I think he's looking for the weight capacity.... Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208869 Share on other sites More sharing options...
j hancock Posted September 28, 2013 Share Posted September 28, 2013 Good point! Rating and ratio look the same by this time on a Sat. night. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208870 Share on other sites More sharing options...
vision386 Posted September 29, 2013 Share Posted September 29, 2013 Good point! Rating and ratio look the same by this time on a Sat. night.National Drink Beer day? LOL!....................................Mark Quote Mack Truck literate. Computer illiterate. Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208875 Share on other sites More sharing options...
j hancock Posted September 29, 2013 Share Posted September 29, 2013 "They were just little drinks" Richie Cunningham"How may did you have?" Mr. Cunningham"Ahhhh, 72....." Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208879 Share on other sites More sharing options...
bullhusk Posted September 29, 2013 Share Posted September 29, 2013 Take some pictures of the springs and the axels flat or coned?BULLHUSK Quote Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208897 Share on other sites More sharing options...
br549 Posted September 29, 2013 Share Posted September 29, 2013 By looking at the spring box on the passenger rear it appears to be alum. The springs are camelback and if i was guessing it would be a 34,000. Drinking milk here. lol Quote Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208906 Share on other sites More sharing options...
DCR Posted September 29, 2013 Author Share Posted September 29, 2013 Thanks for all of the replies. Springs are camelback. Quote Denny330-550-6020A "Mack Pack" Charter Member Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208908 Share on other sites More sharing options...
DCR Posted September 29, 2013 Author Share Posted September 29, 2013 Additional photos Quote Denny330-550-6020A "Mack Pack" Charter Member Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208911 Share on other sites More sharing options...
2stacksuperdog Posted September 29, 2013 Share Posted September 29, 2013 looks like 34000# with aluminum bottoms and small springs Quote Matt Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208917 Share on other sites More sharing options...
thomastractorsvc Posted September 29, 2013 Share Posted September 29, 2013 I concur, the torque rod placement is different on the larger setups to Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208921 Share on other sites More sharing options...
David Posted September 29, 2013 Share Posted September 29, 2013 34k springs. 38k axles. Quote Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208924 Share on other sites More sharing options...
fullfuel01 Posted September 29, 2013 Share Posted September 29, 2013 38k axle. Quote Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208925 Share on other sites More sharing options...
bullhusk Posted September 29, 2013 Share Posted September 29, 2013 That was an E/Z one!! And don't put a dump body on it like some a these Jersey nuts do!! LOL Quote Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208948 Share on other sites More sharing options...
DCR Posted September 29, 2013 Author Share Posted September 29, 2013 That was an E/Z one!! And don't put a dump body on it like some a these Jersey nuts do!! LOLYou just ruined my plans! LOL. No if I get it I will keep it as a road tractor. It needs a lot of TLC but can be bought for scrap price. Not sure if I need another project. Thanks for all of the help everyone. Quote Denny330-550-6020A "Mack Pack" Charter Member Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208951 Share on other sites More sharing options...
r686st Posted September 29, 2013 Share Posted September 29, 2013 My dad's is a converted tractor with 38k's and it does fine. Total truck/cargo is 54k. Quote Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208954 Share on other sites More sharing options...
2stacksuperdog Posted September 29, 2013 Share Posted September 29, 2013 My dad's is a converted tractor with 38k's and it does fine. Total truck/cargo is 54k.Ive seen a lot of frames break right behind the cab because of guys doing that. Quote Matt Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208956 Share on other sites More sharing options...
r686st Posted September 29, 2013 Share Posted September 29, 2013 What kind of terrain are they running them in? Quote Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208963 Share on other sites More sharing options...
blackdog2 Posted September 29, 2013 Share Posted September 29, 2013 Ive seen factory small double frame tractors people put lift axle on with a15.5 dump body frame didn't last long .I had three 82 r- models where the frame broke right under the drivers seat pulling gas tankers. End up stretching and double the frame from front to rear with all new rails & x members Quote Ed Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-208970 Share on other sites More sharing options...
farmer52 Posted September 29, 2013 Share Posted September 29, 2013 Denny - if you decide to NOT buy the MH, let me know. Perhaps there are some cab parts I can use. Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-209042 Share on other sites More sharing options...
DCR Posted September 30, 2013 Author Share Posted September 30, 2013 Will do Ken. I hope to be at Litiz and talk to you about it. Quote Denny330-550-6020A "Mack Pack" Charter Member Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-209074 Share on other sites More sharing options...
bullhusk Posted September 30, 2013 Share Posted September 30, 2013 My dad's is a converted tractor with 38k's and it does fine. Total truck/cargo is 54k.If you have 38's in back with a 10 or 12,000 lb front your still under the 54k. If you have maybe a 10 yd body and gross around 50k I guess it would be ok but I have seen some a these guys put 70,000 on these and you can smell the brakes and gear oil when they come in to dump there loads!BULLHUSK Quote Link to comment https://www.bigmacktrucks.com/topic/32946-mack-rears/#findComment-209089 Share on other sites More sharing options...
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