beatngu Posted August 8, 2006 Share Posted August 8, 2006 i found that not only does the b42s i want has a 20 spd. quad box, and a cracked engine block. but now i have taken notice that it has 8.15 rears! lol... a man there told me it will only go 45 Quote Link to comment https://www.bigmacktrucks.com/topic/1401-found-a-new-reason-to-replace-the-rears/ Share on other sites More sharing options...
Andy Wright Posted August 9, 2006 Share Posted August 9, 2006 Hi mateDoes it have a 711? They were pretty prone to cracking.CheersAndy Quote Whatever rubs your buddah. The Mack E Model Registry - 103 entries The Mack A Model Registry - 14 entries Link to comment https://www.bigmacktrucks.com/topic/1401-found-a-new-reason-to-replace-the-rears/#findComment-7008 Share on other sites More sharing options...
bulldog man Posted August 9, 2006 Share Posted August 9, 2006 the 64' B422T I have has a 6:17 ratio rearend & 711 (not orig motor was a gas bunner mack motor orig) & 10 duplex in it it wont run but 48 to 50 mph but will pull a house down ! later bulldog Quote You Cant Fix Stupid. But You Can Numb It With A Sledgehammer. Link to comment https://www.bigmacktrucks.com/topic/1401-found-a-new-reason-to-replace-the-rears/#findComment-7010 Share on other sites More sharing options...
beatngu Posted August 11, 2006 Author Share Posted August 11, 2006 well,that sounds very awsome! i should try that some day! lol,i want to take a bunch of people to the senior prom in the truck.i have a few people saying they would love it Quote Link to comment https://www.bigmacktrucks.com/topic/1401-found-a-new-reason-to-replace-the-rears/#findComment-7021 Share on other sites More sharing options...
beatngu Posted October 12, 2006 Author Share Posted October 12, 2006 how can you figure out the engine size? it is pretty rusted so no numbers really stick out. also, is this a truck i would be able to drive when i am 18? i was thinking about asking my dad who was a trucker but it has been 3 years that i last seen him and he dont even have a cdl anymore. Quote Link to comment https://www.bigmacktrucks.com/topic/1401-found-a-new-reason-to-replace-the-rears/#findComment-7933 Share on other sites More sharing options...
therabbittree Posted October 15, 2006 Share Posted October 15, 2006 damn my B81 has 9.02 rears argh i bet 38 would be pushing it ..halaterDeo Quote Keep on keeping on... Link to comment https://www.bigmacktrucks.com/topic/1401-found-a-new-reason-to-replace-the-rears/#findComment-7952 Share on other sites More sharing options...
beatngu Posted August 12, 2007 Author Share Posted August 12, 2007 I will keep the rears and knock the box off it. The box is rotten, so I will make it a platform dump or regular tractor when I buy it. Quote Link to comment https://www.bigmacktrucks.com/topic/1401-found-a-new-reason-to-replace-the-rears/#findComment-13373 Share on other sites More sharing options...
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