Messages

1

Engine compartment / Re: Flywheel resurface or not?

« on: August 22, 2020, 11:31:50 PM »

Thanks again. Excellent advice.

2

Engine compartment / Re: Flywheel resurface or not?

« on: August 22, 2020, 09:47:40 PM »

So I went out and put the flywheel (with the pilot bushing still in) on the transmission shaft. It was waaaay loose!!!  The shaft measures .624 and the inside of the bushing was .639! I'm going to order a new pilot bushing and throw out bearing from walcks. Hopefully the new bearing will be ok.  I plan to have the machine shop team the pilot bearing at the same time they resurface the flywheel.
Not sure where I would locally source a throw out bearing other than my LAPS?  Would autozone/oreillys have these in stock??

3

Engine compartment / Re: Flywheel resurface or not?

« on: August 22, 2020, 05:42:59 PM »

Thanks Rus. I’m in no rush so I’m gonna get it resurfaced. I did get a new throw out bearing from Walcks and it was junk. I pressed it on gently in my hydraulic press and after it was very hard to turn and was kind of grinding. It took it off and put the old one back on. Spins smoothly so I might keep it. The bushing seems on inspection as well. How to tell if it’s worn?

4

Engine compartment / Flywheel resurface or not?

« on: August 22, 2020, 03:32:13 PM »

Had to replace the ring gear so I figure while I’m in there better get a new clutch disk. Old one was a bit worn but not too bad. I got this 3a about 6 years ago and have no clutch issues so I’m guessing it was replaced sometime in the not so distant past. Do I need to resurface this flywheel before installing the new clutch disk?

5

Gearboxes and axles / Re: Gears too worn or replace?

« on: July 21, 2020, 10:09:50 PM »

Certainly sounds like a great option. Unfortunately it’s a bit cost prohibitive at this point. I ordered a new 1st gear and small parts kit from Novak. Maybe I’ll do that conversion in the next rebuild!

6

Gearboxes and axles / Re: Gears too worn or replace?

« on: July 20, 2020, 12:30:36 AM »

Thanks. I was prepared to replace both but you may have just saved me about $175. 

7

Gearboxes and axles / Gears too worn or replace?

« on: July 19, 2020, 11:00:31 AM »

So I committed the cardinal sin while taking out the transmission by not wiring the main shaft. Yep - clink, clink and all the needle bearings fell out. I’ve always wanted to rebuild a T-90 so here we go. I have everything apart and the counter shaft and low/reverse gears look pretty worn out. Should I replace?  FWIW before I took it out the transmission worked great. The only reason I was taking it out was to get at the clutch/flywheel.

8

Gearboxes and axles / Re: Dana 41 Issues - need help

« on: May 30, 2020, 06:34:54 PM »

Success!  New spider gears installed. When I took out the old Pinion Mate Shaft there was quite a bit of wear. All back together now and no more clunk. Thanks to all for the help.

9

Gearboxes and axles / Re: Dana 41 Issues - need help

« on: May 24, 2020, 11:27:24 PM »

Thanks for the info Russ. I did check the side gear clearance when I had the carrier out before. Tolerances were within spec. Hopefully it’s a quick swap. Just ordered the spider gear kit from Walcks with the 10% holiday discount.

10

Gearboxes and axles / Re: Dana 41 Issues - need help

« on: May 23, 2020, 05:27:49 PM »

UPDATE - new pinion bearing and carrier bearings installed. Put it all back together and NO CHANGE. After staring at it for an hour moving the hubs back and forth, double checking the U-joints, driveshafts, wheel bearings, etc. I'm convinced it's the spider gears. There's a ton of play in the shaft so something has to be worn. Good news is I have all new bearings, bad news is that I have to take the hubs, brakes and axles all back out!😫😖.  Can I replace the spider assembly without removing the carrier again?

11

Gearboxes and axles / Re: Dana 41 Issues - need help

« on: May 22, 2020, 09:43:08 PM »

Parts arrived yesterday. The carrier is set up and ready to install but I’m struggling with the pinion. The inner and outer races went in fine. Used the same size shims under the inner race. I put the same thickness of shims on the shoulder of the pinion shaft and installed. Tightened the outer bearing down with the yolk in place using a impact. It was very tight and I could barely turn the yolk. Obviously WAY more than the recommended 10-25 inch-pounds in the manual.  Could I have over tightened it? Is that possible with the same thickness of shims? I backed the pinion nut off and gave the shaft a couple solid whacks with a punch and it loosened up to what feels about right. Not sure this is good though. Need advice

12

Gearboxes and axles / Re: Dana 41 Issues - need help

« on: May 17, 2020, 01:02:12 PM »

Checked the side gears. I have 0.003 gap. Manual says up to 0.006 is good. Order submitted to Walcks for all the new bearings, etc. I’ll update once it’s all back together.

13

Gearboxes and axles / Re: Dana 41 Issues - need help

« on: May 16, 2020, 09:07:41 PM »

I got it all disassembled today.  Carrier popped out pretty easy.  Carrier bearings looked ok but based on how easy it came out, they must have some wear. The pinion bearing was definitely worn out.  I'm making a shopping list right now - new bearings, races, seals and all new shims.  Ring and pinion gears look ok so I'm not going to change them. Anything else I should do while the diff is completely torn apart?

14

Gearboxes and axles / Re: Dana 41 Issues - need help

« on: May 14, 2020, 09:09:20 AM »

Ring gear is tight. All the lock tabs are intact too. I’ll try to pull the shafts when I get home from work tonight and get some pics of the splines. How much play is there supposed to be in the spacer shaft with the axles out?

15

Gearboxes and axles / Re: Dana 41 Issues - need help

« on: May 13, 2020, 11:32:52 PM »

The rear driveshaft is disconnected. There is minimal play with rotation of the yolk. Maybe 2-3 degrees with a slight click. I think the backlash is ok.  The major amount of play is when I try to rotate the hubs/drums. With this there is major play In The axles and spider gears