keg1 Posted December 26, 2016 Share Posted December 26, 2016 Besides bell housing and mounts does anything else need done when going from Mack trans to a Fuller? Quote Link to comment Share on other sites More sharing options...
fjh Posted December 26, 2016 Share Posted December 26, 2016 (edited) Drive shaft and stick Edited December 26, 2016 by fjh Quote Link to comment Share on other sites More sharing options...
keg1 Posted December 26, 2016 Author Share Posted December 26, 2016 I thought I saw somewhere the pilot bearing needed changed or snap ring taken off. Didn't know if that was true or not. If so what holds it in? Quote Link to comment Share on other sites More sharing options...
alex g Posted December 26, 2016 Share Posted December 26, 2016 Your on to something with pilot bearing. I remember when I had fuller out we checked the pilot bearing and had to change it because whoever installed the fuller wasn't aware of difference. I think the difference was the input shaft didn't sit far enough in the pilot bearing . It was simple fix we just changed bearing but measured distance from bellhousing to input shaft to make sure it sat in there properly Sent from my SM-G386W using Tapatalk Quote Link to comment Share on other sites More sharing options...
blackdog2 Posted December 26, 2016 Share Posted December 26, 2016 what years motor size trans torque 1o-5-13 12-5-13 the fist two numbers tells torque range Mack trans take 1800lbs torque 5-6-7-8-9-12 speed-do to the triplet counter shafts older Mack produce a lot of power Eaton-fuller don't last long GMC trucks have bell housing mounts Quote Ed Link to comment Share on other sites More sharing options...
jkruss82 Posted December 28, 2016 Share Posted December 28, 2016 The pilot bearing floats in the flywheel, nothing holds the new ones without snap rings. Good idea to replace the pilot bearing, they tend to go bad from the clutch dust and such. Quote Link to comment Share on other sites More sharing options...
luke andres Posted December 30, 2016 Share Posted December 30, 2016 I just changed my mack 2080 tranny to a eaton 8LL I didn't change the pilot bearing Had to shorten driveshaft and the rear from a 573 to 442 to maintain top end speed not a bad job to do love the difference in the truck Quote Link to comment Share on other sites More sharing options...
TeamsterGrrrl Posted December 30, 2016 Share Posted December 30, 2016 Why? Quote Link to comment Share on other sites More sharing options...
luke andres Posted December 30, 2016 Share Posted December 30, 2016 why what? Quote Link to comment Share on other sites More sharing options...
TeamsterGrrrl Posted December 30, 2016 Share Posted December 30, 2016 Why swap a near indestructible Mack for a Fuller that's going to require more shifting? Quote Link to comment Share on other sites More sharing options...
luke andres Posted December 30, 2016 Share Posted December 30, 2016 the 2080 is a 8 speed but more like a 5 speed if you will the 3 lows I never use unless off road when loaded I can take off in 1st high and only have 4 more gears to go There is a big jump between gears I would red line rpms and then grab next gear and she would fall on her face almost like I skipped a gear that's why the swap a guy in pennsilvania did the same thing buy took a 2070 out and put a 2130 mack tranny in He said it was a big difference too Quote Link to comment Share on other sites More sharing options...
keg1 Posted December 30, 2016 Author Share Posted December 30, 2016 9 hours ago, TeamsterGrrrl said: Why? The reason WHY I'm thinking of doing it is you can get a fuller for about half the price of a Mack. I had a fuller in my ch and didn't have any problems. Quote Link to comment Share on other sites More sharing options...
keg1 Posted December 30, 2016 Author Share Posted December 30, 2016 Thanks for the replies. Quote Link to comment Share on other sites More sharing options...
TeamsterGrrrl Posted December 30, 2016 Share Posted December 30, 2016 Luke, sounds like your Maxidyne engine may not be running right- It should have enough power to pull the next gear after an upshift, even at 1200 RPM. Perhaps a pervious owner swapped in a conventional torque rise engine or the pump off of one? Keg 1, the Fullers are cheap because there's so many of them laying around. 1 Quote Link to comment Share on other sites More sharing options...
luke andres Posted December 30, 2016 Share Posted December 30, 2016 thanks for the feed teamstergrrrl You are probably right about the running of the engine Im sure is due for a overhaul when I decide to do it id like to get it up to more like 350 to 375 horse Any advice on how I can sent you some pics of the engine and truck if you want to see it Its a work in progress I call it the Big Stack Mack Quote Link to comment Share on other sites More sharing options...
Vladislav Posted December 30, 2016 Share Posted December 30, 2016 Do you need to swap the chassis mounting brackets to put Fuller in place of Mack or vice versa? Just today looking my MH model frame (which should be similar to Suerliner) I noted those brackets the tranny housing seats on have only one rubber unsulator pad on each side of the truck. MH has Fuller 9 speed. On the other hand my R's with Mack T2090 have two pads on each side. Wonder what do MH/RW2 with Mack tranny have of them? Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment Share on other sites More sharing options...
keg1 Posted December 30, 2016 Author Share Posted December 30, 2016 4 hours ago, Vladislav said: Do you need to swap the chassis mounting brackets to put Fuller in place of Mack or vice versa? Just today looking my MH model frame (which should be similar to Suerliner) I noted those brackets the tranny housing seats on have only one rubber unsulator pad on each side of the truck. MH has Fuller 9 speed. On the other hand my R's with Mack T2090 have two pads on each side. Wonder what do MH/RW2 with Mack tranny have of them? I was told Superliners and Mh have one bolt and R models have two. But the mounts on the trans are different between Mack and Fuller. 1 Quote Link to comment Share on other sites More sharing options...
luke andres Posted December 30, 2016 Share Posted December 30, 2016 the mounts on transmission are definitely different on my dm I did not have to change the brackets on the frame mine was a 2 bolt per side set up 1 Quote Link to comment Share on other sites More sharing options...
Vladislav Posted December 31, 2016 Share Posted December 31, 2016 19 hours ago, keg1 said: I was told Superliners and Mh have one bolt and R models have two. But the mounts on the trans are different between Mack and Fuller. So does it mean there are both one bolt and two bolt tranny brackets for every kind of transmission used on those Macks? Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment Share on other sites More sharing options...
Challenger Posted January 3, 2017 Share Posted January 3, 2017 On 12/26/2016 at 7:14 AM, keg1 said: I thought I saw somewhere the pilot bearing needed changed or snap ring taken off. Didn't know if that was true or not. If so what holds it in? Gray engine with Mack or Eaton trans--pilot bearing with snap ring Red engine with Mack or Eaton trans-no snap ring on pilot bearing 1 Quote Link to comment Share on other sites More sharing options...
keg1 Posted January 3, 2017 Author Share Posted January 3, 2017 16 hours ago, Challenger said: Gray engine with Mack or Eaton trans--pilot bearing with snap ring Red engine with Mack or Eaton trans-no snap ring on pilot bearing Thank you Quote Link to comment Share on other sites More sharing options...
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