biffidun Posted November 26, 2013 Share Posted November 26, 2013 Hi there. I would like to know if I can pull the drive shaft between the rear axles and make my truck a single axle drive? I am having some power divider issues and would like to drive the truck till I get the thing sorted out. I never was able to wrap my head around the peanut and wedge power divider, but I am thinking it might just send all the drive to the flange where the rear axle used to be... meaning the truck will not move.Can this be done? Is there a way? I don't encounter any muck as I am driving on roads 100% of the time so traction is not an issue. Quote Link to comment https://www.bigmacktrucks.com/topic/33642-1976-dm-power-divider-question/ Share on other sites More sharing options...
biffidun Posted November 27, 2013 Author Share Posted November 27, 2013 No thoughts? Guess I'll just do it. Quote Link to comment https://www.bigmacktrucks.com/topic/33642-1976-dm-power-divider-question/#findComment-218662 Share on other sites More sharing options...
David Posted November 27, 2013 Share Posted November 27, 2013 Unless you have an air lock on the power divider, pulling the short shaft will leave you sitting. Quote Link to comment https://www.bigmacktrucks.com/topic/33642-1976-dm-power-divider-question/#findComment-218678 Share on other sites More sharing options...
b61mack Posted November 27, 2013 Share Posted November 27, 2013 Its not that hard to put peanuts and inner cam if that's all it needs. just drop the front driveshaft, remove the 5/8s bolts where the seal is. the yoke and peanuts will pull out. Quote Link to comment https://www.bigmacktrucks.com/topic/33642-1976-dm-power-divider-question/#findComment-218694 Share on other sites More sharing options...
biffidun Posted November 27, 2013 Author Share Posted November 27, 2013 (edited) Well I replaced the peanuts less than 1000 miles ago. I think it is time to jack up both rear axles and see if the ratios match. I have had problems since I bought this truck over a year ago. I don't put a lot of miles on, but once there is any kind of sustained load it starts banging up the driveline. The problem went away when I replaced the peanuts (they were worn), but it has resurfaced. I didn't replace the inner cam,.... maybe that was a bad idea.All tires are new. Edited November 27, 2013 by biffidun Quote Link to comment https://www.bigmacktrucks.com/topic/33642-1976-dm-power-divider-question/#findComment-218719 Share on other sites More sharing options...
b61mack Posted November 27, 2013 Share Posted November 27, 2013 The ratio is stamped on the flat angle on front right side of the carrier. on another note, they made a 3.86 and a 3.87, it is close but they wont work together. scrape off the grease and see what you have. Quote Link to comment https://www.bigmacktrucks.com/topic/33642-1976-dm-power-divider-question/#findComment-218749 Share on other sites More sharing options...
biffidun Posted November 29, 2013 Author Share Posted November 29, 2013 Well I think the plate that indicated the gear ratios is gone or not legible on either axle.gallery image:http://www.bigmacktrucks.com/index.php?/gallery/image/14066-rear-axle-with-peanut-power-divider/I guess I just have to jack up one side of the rear and turn the drive shaft and count revolutions of the wheels. I'm just concerned that it will be difficult to see the difference between a 3.86 and a 3.87On another note, I can get a 3.87 top gear set is this all I need to change the ratio or do I need to remove the whole diff?Thanks for any help I get. Quote Link to comment https://www.bigmacktrucks.com/topic/33642-1976-dm-power-divider-question/#findComment-219080 Share on other sites More sharing options...
j hancock Posted November 29, 2013 Share Posted November 29, 2013 The number is stamped in the gear housing. No tag to fall off. 4.17 shown. Might have to take a scotch brite pad to clean it up. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/33642-1976-dm-power-divider-question/#findComment-219084 Share on other sites More sharing options...
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