Jake Kuhn 1,556 #1 Posted July 28, 2013 Hey Guys, I am currently working on rebuilding an 8 speed I had as a spare. It has 1 1/8" axles with the 8 pinion diff. This is the first 8 speed I have done, I have only done 4 speeds so far, haven't had the guts to try a rj trans yet. I opened up the trans and it looked great inside! It is in great shape! The gears are super nice and there is not much rust if any inside! I soaked everything in mineral spirits and everything cleaned up great. The bearings are all pretty nice. One of the needle bearings came apart after being soaked so I might just replace all the needle bearings in the case to be safe. The needle bearings in the gears will stay, they are good enough. I still have to sandblast the case. I sometimes glass bead the inside but this one is good enough, I just will blast the outside. So I just need to blast the case. Probably order some bearings, and then see if I can put it back together. I will just put a coat of primer on it and put it away. I have no use for it but wanted to see the inside of one. I got this trans off a tractor that was very cheap, and with the money I made off of selling whats left I can probably cover the cost of everything I used to rebuild this tranny. Here are pictures after everything has been cleaned up. 2 Share this post Link to post Share on other sites
WH-AG 5 #2 Posted July 28, 2013 Hey jake I got the part today I may be able to make it work. Are the 8 speeds the good pulling trannys? Share this post Link to post Share on other sites
Martin 2,133 #3 Posted July 28, 2013 thats great jake! i have only done a 3 speed so far, but it was fun. i have an 8 i need to do and am looking forward to getting into it. much nicer than doing engines. Share this post Link to post Share on other sites
groundhog47 347 #4 Posted July 28, 2013 (edited) Jake, am sure I'm not the only one amazed at your work and tenacity. Like you were, I am really curious about the inards and tremendously stevasaurus's video on the older 4 speed. A T-10 from a mustang is easy compared to that, can't imagine will ever get a spare but would really like to give it a go. Thanks for the inspiration! Edited July 28, 2013 by groundhog47 Share this post Link to post Share on other sites
Wheelhorsedairyfarmer 13 #5 Posted July 28, 2013 Jake, I'm getting ready to work on the 8 speed on my c-141. Now I've got a question, which part in the pic is the hi/lo shift fork? I haven't torn my tranny apart yet, but getting ready to in the next few days! Share this post Link to post Share on other sites
stevasaurus 22,883 #6 Posted July 28, 2013 Jake, I have no idea why you are shying away from one of the 3 piece transmissions. That trans looks to be in excellent shape...piece of cake my friend. Share this post Link to post Share on other sites
pfrederi 17,910 #7 Posted July 29, 2013 Jake, I'm getting ready to work on the 8 speed on my c-141. Now I've got a question, which part in the pic is the hi/lo shift fork? I haven't torn my tranny apart yet, but getting ready to in the next few days! It is just to the left of the main shifter forks. Share this post Link to post Share on other sites
Jake Kuhn 1,556 #8 Posted July 31, 2013 Well here is a little bit of an update. The differential is back together, I blasted the hubs and pulleys. Also took the needle bearings out today so I can sandblast the case, I have taped over the 1533's after I took the picture. I am going to order all new bearings for the trans, but will wait until after charlotte show. Here are some pictures. ~Jake old bearings diff back together bearings out of the case hubs, pulleys, and shifters bead blasted. 1 Share this post Link to post Share on other sites
Jake Kuhn 1,556 #9 Posted July 31, 2013 Got the case blasted this morning. Thats as far as I can go until I get new bearings which will probably be a few weeks. Here's a pic. 3 Share this post Link to post Share on other sites
W/H JUNKY 43 #10 Posted October 28, 2013 Hi again guy Does any one know where i can find stevasaurus's video on rebuilding the trans. in my C81 i have seen it once before but can not find it now. I am putting it back together and cant seem to get the balls compressed and put the fork back in all at once lol. Just need a few suggestions on how to do this. Thanks guys. Chris Share this post Link to post Share on other sites
dparke 16 #11 Posted October 28, 2013 Just sent you a PM with the link, Chris. Share this post Link to post Share on other sites
W/H JUNKY 43 #12 Posted October 29, 2013 Hi Jake I just put my trans. together today i am just waiting for the case gasket to come in from Toro. It was pretty easy especially after watching stevasaurus video. The only question i have now is where he used the allen wrench to push the ball and spring over to get the shifting fork in. I had a metal plug in there that I had to tap out with a punch do you think I could just use silicone to plug this hole. I will post some images shortly. Thanks Chris Share this post Link to post Share on other sites
bowtiebutler956 650 #13 Posted October 29, 2013 Very nice work Jake! What happened to this project? Did you ever get it finished? Matt Share this post Link to post Share on other sites
Jake Kuhn 1,556 #14 Posted October 29, 2013 never got around to finishing it....its sitting in a box on a shelf right now. Have found other things that have caught my eye and haven't purchased any bearings for it. Just need bearings and it is ready to put back together.....hope to finish it this winter sometime. Share this post Link to post Share on other sites
stevasaurus 22,883 #15 Posted October 29, 2013 WH JUNKY...yes, you can just put a dab of silicone in that hole. Jake...you mean you did not get the bearings for your birthday??? Share this post Link to post Share on other sites
AMC RULES 37,134 #16 Posted October 29, 2013 For those bearings Jake? Remember..no naughty, all nice. Xmas is just around the corner. 1 Share this post Link to post Share on other sites
Jake Kuhn 1,556 #17 Posted February 14, 2015 well here is an old thread....Finally finished this one up last week Here's the new bearings, and the gears after a quick clean up after sitting a long time... Case cleaned up with new bearings installed ready to put the 2 halves together. done It recieved a coat of red paint today, but didn't get any pictures. This one is going to go in my c160 or c125 when I restore them, whichever comes first...probably one of the nicest 8 speeds I'll ever have, no gears had any wear. Thanks, Jake 1 Share this post Link to post Share on other sites
bowtiebutler956 650 #18 Posted February 14, 2015 Wow, almost a year an a half later it done! Nice work Jake. Matt 1 Share this post Link to post Share on other sites
