Maxwell-8 4,290 #1 Posted February 13, 2021 I am gone start working on 3 trannys, two 8-speeds and one 4speed. And probably this has been asked a lot, but can't find anything. So my question is, what are the torque specs on the diff bolts and case bolts? Thanks! Share this post Link to post Share on other sites
ebinmaine 68,325 #2 Posted February 13, 2021 Tight. Should be 3/8-16 bolts? Bout 30 foot lbs dry. Honestly I don't check em. Just tighten til it feels right to me. 1 Share this post Link to post Share on other sites
Jeff-C175 7,203 #3 Posted February 13, 2021 (edited) 10 hours ago, Maxwell-8 said: torque specs on the diff bolts You should be able to find torque spec charts for various size bolts into various materials and various grades of bolts on the web. https://www.portlandbolt.com/technical/bolt-torque-chart/ for example That chart doesn't mention material into which you are threading though, Aluminum requires less torque of course. It's not so much a manufacturer thing as it is a materials thing. Edited February 13, 2021 by Jeff-C175 1 Share this post Link to post Share on other sites
Maxwell-8 4,290 #4 Posted February 13, 2021 2 hours ago, Jeff-C175 said: You should be able to find torque spec charts for various size bolts into various materials and various grades of bolts on the web. https://www.portlandbolt.com/technical/bolt-torque-chart/ for example That chart doesn't mention material into which you are threading though, Aluminum requires less torque of course. It's not so much a manufacturer thing as it is a materials thing. I have a torque chart for metric. Except my horse, i have nothing with standard size bolts. Share this post Link to post Share on other sites
Maxwell-8 4,290 #5 Posted February 13, 2021 13 hours ago, ebinmaine said: 30 foot lbs dry so no lock tight. Share this post Link to post Share on other sites
Jeff-C175 7,203 #6 Posted February 13, 2021 12 minutes ago, Maxwell-8 said: so no lock tight. A dab of BLUE loctite should not affect the torque setting. I've done it for years and years with no ill affects. 1 1 Share this post Link to post Share on other sites
pfrederi 17,866 #7 Posted February 13, 2021 From Kohler service manual 2 2 1 Share this post Link to post Share on other sites
Handy Don 12,460 #8 Posted February 14, 2021 On 2/13/2021 at 10:00 AM, pfrederi said: From Kohler service manual Replying to this to add keywords so it'll come up in a search for: Torque settings for bolts and drain plugs Grade 2 Grade 5 Grade 8 1 Share this post Link to post Share on other sites
