ducky698 Posted July 2, 2009 Share Posted July 2, 2009 Hi All, my flintstone chassis is now 315 inches long. its a twin chassis. it will have a wheel base of about 216 inches. how many cross members should a chassis of this length have?an Rob I will be in Il, from the 4th August, provideing they let me in the country. ( they should do? )Grant Quote Link to comment https://www.bigmacktrucks.com/topic/9938-cross-members/ Share on other sites More sharing options...
Rob Posted July 2, 2009 Share Posted July 2, 2009 Hi All, my flintstone chassis is now 315 inches long. its a twin chassis. it will have a wheel base of about 216 inches. how many cross members should a chassis of this length have?an Rob I will be in Il, from the 4th August, provideing they let me in the country. ( they should do? )GrantHi Grant, my R795 has a 215 inch wheelbase measured center of the tandem. I will count the crossmembers tonight but I think there are three total from the cab to rear of truck.Looking forward to meeting you.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/9938-cross-members/#findComment-37607 Share on other sites More sharing options...
ducky698 Posted July 2, 2009 Author Share Posted July 2, 2009 Hi Grant, my R795 has a 215 inch wheelbase measured center of the tandem. I will count the crossmembers tonight but I think there are three total from the cab to rear of truck.Looking forward to meeting you.RobHello, is that not including the H section above the diffs? whats there locations? thanks.will have to bring some aussie truck stuff with me.Grant Quote Link to comment https://www.bigmacktrucks.com/topic/9938-cross-members/#findComment-37608 Share on other sites More sharing options...
Rob Posted July 2, 2009 Share Posted July 2, 2009 Hello, is that not including the H section above the diffs? whats there locations? thanks.will have to bring some aussie truck stuff with me.GrantHi Grant, no I did not include the trunion stand, only the crossmember that is at the rear of cab, (supports rear cab mount) the one about three feet back, (carrier bearing hangs on this one), and the one to the rear of the framerails behind 5th wheel. Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/9938-cross-members/#findComment-37611 Share on other sites More sharing options...
ducky698 Posted July 2, 2009 Author Share Posted July 2, 2009 Hi Grant, no I did not include the trunion stand, only the crossmember that is at the rear of cab, (supports rear cab mount) the one about three feet back, (carrier bearing hangs on this one), and the one to the rear of the framerails behind 5th wheel. RobThats the same as this then. it seems like a big jump from centre bearing cross member to trunnion support, its a long way back.Grant Quote Link to comment https://www.bigmacktrucks.com/topic/9938-cross-members/#findComment-37613 Share on other sites More sharing options...
Rob Posted July 2, 2009 Share Posted July 2, 2009 Thats the same as this then. it seems like a big jump from centre bearing cross member to trunnion support, its a long way back.GrantIf I remember correctly it is a little more distant to the trunion support as opposed to the cab support but not more than 24 inches further.I'll get you a couple photos tonight.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/9938-cross-members/#findComment-37616 Share on other sites More sharing options...
ducky698 Posted July 3, 2009 Author Share Posted July 3, 2009 If I remember correctly it is a little more distant to the trunion support as opposed to the cab support but not more than 24 inches further.I'll get you a couple photos tonight.RobHello, just seems a long way, I would have atleast 6 feet from last cross member to trunion support, I would have expected to see atleast one more cross member in there.Grant Quote Link to comment https://www.bigmacktrucks.com/topic/9938-cross-members/#findComment-37684 Share on other sites More sharing options...
ducky698 Posted July 3, 2009 Author Share Posted July 3, 2009 why cant i get pics up? 50 kb and it still says its to big.Grant Quote Link to comment https://www.bigmacktrucks.com/topic/9938-cross-members/#findComment-37686 Share on other sites More sharing options...
Rob Posted July 3, 2009 Share Posted July 3, 2009 Hello, just seems a long way, I would have atleast 6 feet from last cross member to trunion support, I would have expected to see atleast one more cross member in there.GrantI think you are right but I forgot to look and snap the photos I promised. Will be there in a couple hours and will set it straight.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/9938-cross-members/#findComment-37688 Share on other sites More sharing options...
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