D15 tranny fix?
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=6743
Printed Date: 06 Oct 2025 at 10:33am
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Topic: D15 tranny fix?
Posted By: Tracy Martin TN
Subject: D15 tranny fix?
Date Posted: 17 Jan 2010 at 7:57pm
| What is average cost to repair 2nd and 3rd gear in series II D15? Looking at one that jumps out and needs fixing. Thanks Tracy Martin |
Replies:
Posted By: Dave(NEPA)
Date Posted: 17 Jan 2010 at 8:05pm
| From what I hear pretty expensive, but most of it is labor tearing everything apart to get to it. Somebody that knows a lot more than I should be along soon to tell you how to check the shift fork and modify the detent to make it engage deeper into the gear, I learn more from this forum than any I and T manual. |
Posted By: Tracy Martin TN
Date Posted: 17 Jan 2010 at 8:26pm
| Dave, I can do the repair. I was wondering on parts cost. Thanks Tracy Martin |
Posted By: Rogers
Date Posted: 17 Jan 2010 at 9:24pm
|
Tracy,
I sent you a PM with some part numbers and costs. ------------- Think for yourself and be your own expert. Be willing to change your mind; however, willingness to change your mind doesn’t mean that you will. Blindly following any path is the pinnacle of insanity. |
Posted By: Tracy Martin TN
Date Posted: 17 Jan 2010 at 10:38pm
| Rogers,Thanks. Tracy Martin |
Posted By: Jack(Ky)
Date Posted: 18 Jan 2010 at 6:11am
| Tracy, I can also get the parts through an aftermarket supplier. I see about it today.JP |
Posted By: coastga
Date Posted: 09 Jun 2020 at 11:11am
| I started having the same problem last year with my D15 series II. What was the cost estimate? Thanks! |
Posted By: Tracy Martin TN
Date Posted: 09 Jun 2020 at 1:01pm
|
I still haven't got to it. Other stuff got in front! Tracy ------------- No greater gift than healthy grandkids! |
Posted By: Charlie175
Date Posted: 09 Jun 2020 at 1:58pm
|
I did my D12 which uses the same parts for around $800. I had to replace a bearing also. It really depends on what you need when you pull it apart. Shift forks wore out? Might as well do Reverse while you are in there. Figure $150 or so per gear and then if the main shaft or pinion or both sets you need to replace.... ------------- Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD |
Posted By: Charlie175
Date Posted: 09 Jun 2020 at 2:08pm
This is what you find. Rounded off Dog Gears ------------- Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD |
Posted By: DSeries4
Date Posted: 09 Jun 2020 at 8:47pm
|
Last average price on parts I had was around $1000. You won't know for sure until you get in there. The input shaft also needed replacing on my 190XT. That was extra. Gears, collars, and bearings at minimum. ------------- '49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080 |
Posted By: Lon(MN)
Date Posted: 10 Jun 2020 at 8:18am
| I rebuilt one. Had to replace the casting and the pinion shaft had parts of the teeth missing. I can't wait to rebuild another. (not) After I got it done the reverse gear sounded like the trans was full of a box of rocks. |
Posted By: Albert
Date Posted: 10 Jun 2020 at 9:17pm
|
Doing a 14 now 2nd 3rd and 4th with collars and three bearings gaskets seals and a few parts for power director and have $1500 Albert
|
Posted By: PrairieAC
Date Posted: 10 Jun 2020 at 10:38pm
I kinda have the same issue with my D15 series II. Shifts into third fine and will hold the gear, but sounds like a can of rocks rolling around when your driving in third. 
|
Posted By: Charlie175
Date Posted: 11 Jun 2020 at 5:28am
That's the reverse idler gear interacting with 3rd gear I have the same issue on my D10 Series 3. Mine is a early serial and AC decided to revise the idler is that series. Well it was known to make noises and AC put out a service bulletin to correct it (If the customer complained). Later serials had it fixed from the factory. I decided to fix this when I was redoing my brakes. I figured the gear alignment was off so I added a bit of medal to the shift collar. Now it pops out of 3rd, so my assumption was not right! Got to take it apart again and undo what I did. I think your gear "rack" Lash or what ever its called, affects this also. ------------- Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD |
PrairieAC wrote:Posted By: Dusty MI
Date Posted: 11 Jun 2020 at 7:19am
Charlie, Do you know at what serial number they changed at ? Thanks, Dusty ------------- 917 H, '48 G, '65 D-10 series III "Allis Express" |
Posted By: Charlie175
Date Posted: 11 Jun 2020 at 8:47am
|
I have to check and see if my service manual tells me. I need to find it first :( ------------- Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD |
Posted By: coggonobrien
Date Posted: 11 Jun 2020 at 9:05am
| The doctor reworked my shifter to improve engagement, doesn't pop out of gear anymore. |
Posted By: PrairieAC
Date Posted: 11 Jun 2020 at 11:55am
| Well that sounds like good news. Maybe a cheaper fix than I original thought. So I'm assuming they have a different style idler? Or is it like a shim or different shift fork? The story goes dad was trying to pull something out of the ground that was buried. Took a little run at it and heard a noise in the tranny. Now third has always been noisey. The tractor is an early 1965. Sorry, not trying to hijack the thread. Just got me curious. |
Posted By: Charlie175
Date Posted: 12 Jun 2020 at 6:23am
|
There are shims of various thickness to use as needed. But You have to tear it all apart to do that and then figure out which ones to use for the correct amount of slack. ------------- Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD |