The Nitro Posted October 28, 2022 Share Posted October 28, 2022 I have bought a new yolk, nut, seal, and uni joint for front diff input as the uni caps are spinning inside the straps and want to fix it if i can. what kind of impact wrench would i need to undo this nut? I dont have any impact gun or pullers yet but dont want to buy say a makita 40v 3/4 impact wrench for $1000 here in Au if it wont undo that big nut. any help appreciated thanks. Its a meritor 160 series diff Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/ Share on other sites More sharing options...
Onyx610 Posted October 28, 2022 Share Posted October 28, 2022 I’ve taken them off with 1/2 air impact 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-513877 Share on other sites More sharing options...
Popular Post Joey Mack Posted October 28, 2022 Popular Post Share Posted October 28, 2022 you got one hell of a half inch gun buddy... 3 Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-513878 Share on other sites More sharing options...
Onyx610 Posted October 28, 2022 Share Posted October 28, 2022 I must haha Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-513881 Share on other sites More sharing options...
Popular Post Joey Mack Posted October 29, 2022 Popular Post Share Posted October 29, 2022 When you use the impact gun to remove/install the yoke nut, do the best you can to hold the yoke with a homemade tool or your hand to keep the hammering of the gun from causing a clashing of the gears in the rear end.. do not rely on the ring and pinion to be the holder for the impact gun... jojo 1 2 Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-513924 Share on other sites More sharing options...
Onyx610 Posted October 29, 2022 Share Posted October 29, 2022 Very good advice! I always worried about that….but never applied a tool. Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-513926 Share on other sites More sharing options...
Adkat Posted October 29, 2022 Share Posted October 29, 2022 I use a Makita 18v 3/4" gun, usually works well, if not, gas axe on the nut to free it up does the job. You can also cut some shims out of an aluminium can to tighten the caps up in the straps if the uni is still in good nick. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-513935 Share on other sites More sharing options...
Joey Mack Posted October 29, 2022 Share Posted October 29, 2022 good idea about the shims.. here in the states we get trained to "Replace" but a "Mechanic" can re-use and Fix it !! I have a hard time, at times, explaining that you can, "Fix It!" jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-513936 Share on other sites More sharing options...
Adkat Posted October 29, 2022 Share Posted October 29, 2022 Yeah 9 times out of 10 it's a replace job, but if the seal ain't leaking, the yoke ain't loose and the unis good , can't see any point throwing money away unnecessarily. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-513956 Share on other sites More sharing options...
The Nitro Posted October 29, 2022 Author Share Posted October 29, 2022 I have a yearly inspection coming up so just bought the parts already. Was deciding wether to get the 40v makita 3/4 or a bigger 1 inch air gun. The cordless would be preffered as i could use it for other stuff out in the field if its up to the task. I thought about the soda can trick but my luck if would half fall out on the way in fir inspection and they would see it and kick my ass lol Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-513973 Share on other sites More sharing options...
terry Posted October 29, 2022 Share Posted October 29, 2022 10 hours ago, Joey Mack said: good idea about the shims.. here in the states we get trained to "Replace" but a "Mechanic" can re-use and Fix it !! I have a hard time, at times, explaining that you can, "Fix It!" jojo used that beer can shim on many a U joints! terry Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-513982 Share on other sites More sharing options...
mechohaulic Posted October 30, 2022 Share Posted October 30, 2022 On 10/28/2022 at 9:52 PM, Joey Mack said: When you use the impact gun to remove/install the yoke nut, do the best you can to hold the yoke with a homemade tool or your hand to keep the hammering of the gun from causing a clashing of the gears in the rear end.. do not rely on the ring and pinion to be the holder for the impact gun... jojo quick/cheap yoke holding tool is a ;; cut to length 4x4. cut a tad longer then yoke sitting horizontal to ground . you really want a fancy "tool" then 2 nails on opposite sides of the 4x4 to connect a short bungee cord over the yoke, it holds the yoke to the 4x4 tighter so you can put full effort in the impact gun . takes ALL the shock from traveling to the gear train. on a real budget then use a 2x4. 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-514047 Share on other sites More sharing options...
The Nitro Posted October 31, 2022 Author Share Posted October 31, 2022 I found a 40v makita 3/4 impact a few towns away and got it sent over. Walked around all the tool shops in our town wirh the new nut in my hand and no one had a 56mm socket to fit the nut lol. thought I was in luck in one shop when I saw a shelf with the big sockets on the wall. Walks over and they had a 55 and a 57. 56 was gone haha. Will have to order one. Trucks grounded anyway as I wait patiently for new electric tarp cover to be made by local upholsterer. Been waiting 3 weeks for the actual material to turn up. Starting to thing theres a shortage maybe. Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-514163 Share on other sites More sharing options...
Joey Mack Posted October 31, 2022 Share Posted October 31, 2022 wouldnt a 2 1/4'' do the trick.?? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-514164 Share on other sites More sharing options...
Hayseed Posted October 31, 2022 Share Posted October 31, 2022 One of These & a 10 yr Kid can undo your Yoke Nut.. https://www.maxiparts.com.au/CA3770-1-and-quot-drv-big-boy-torque-multiplier They're also Handy to carry with you to undo wheel Nuts when you get a Flat.. 2 Quote "Be who you are and say what you feel...Because those that matter...don't mind...And those that mind....don't matter." - Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-514171 Share on other sites More sharing options...
The Nitro Posted November 6, 2022 Author Share Posted November 6, 2022 Damn, I’ve got one of those tools in the truck…. Didnt think of it for the yolk nut. Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-514440 Share on other sites More sharing options...
Joey Mack Posted November 6, 2022 Share Posted November 6, 2022 I wish I had one of those, back when I was doing road service work.. Heck, I never even thought to look into buying one... $88.00 What a deal!! jojo Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-514441 Share on other sites More sharing options...
The Nitro Posted November 12, 2022 Author Share Posted November 12, 2022 I had no luck with the rattle gun on the yolk nut. Ended up using dremel and whittling away at nut and the flange of nut as well since it was glued at thread and back of nut flange. Quote Link to comment https://www.bigmacktrucks.com/topic/70630-what-tools-to-undo-big-nut-on-meritor-diff-yolk/#findComment-514824 Share on other sites More sharing options...
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