2 speed for wc.
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Topic: 2 speed for wc.
Posted By: Robacpuller
Subject: 2 speed for wc.
Date Posted: 18 Sep 2017 at 9:19pm
| Dr. U make a high low for a wd45, will it fit in a wc. |
Replies:
Posted By: AaronSEIA
Date Posted: 19 Sep 2017 at 6:06am
|
I doubt it. They are 2 completely different transmissions. Not sure the good Dr really has a "2 speed". It's more of a set of split speed gears, isn't it? A 2 speed in my mind can be shifted like the D series Power Director or the IH's TA. AaronSEIA |
Posted By: DrAllis
Date Posted: 19 Sep 2017 at 7:27am
| My 2-speed as it is won't fit in a WC chassis. I'm sure I could make one, as long as the WC has the newer "disconnect" style rear end. Cost would be the next thing. Not one person asked to have a 2-speed built for a WD/WD45 like mine when they found out what it cost. I now have 50 plus passes down the track the last two seasons with zero trouble. A 15% under-drive would be ideal for the WC, which would place gear speeds 1/2 way between what is already there. |
Posted By: Robacpuller
Date Posted: 19 Sep 2017 at 9:05pm
| Dr.I have 18.4 - 34's that I am putting on my wc. A little gear reduction would help. I have 400 cubes but know that the tires will make my 1st. GEAR EVEN FASTER. I have 15.5-38's at 30% over I can hit 5.5 mph. At 4 mph I will have to idle down the track. I have motor apart know for a refresh, and Marty Nelson is doing some work on some parts. It will have more hp. I would like to pull some NATPA division 3. Can I make a smaller axle gear to run with bull gear. ? |
Posted By: Charlie175
Date Posted: 20 Sep 2017 at 6:00am
I forgot what the cost was, remind me. ------------- Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD |
DrAllis wrote:Posted By: CAL(KS)
Date Posted: 20 Sep 2017 at 7:40am
Semi load of corn if I recall. ------------- Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20 Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15 |
Posted By: DrAllis
Date Posted: 20 Sep 2017 at 7:58am
| Four custom made gears, one custom made countershaft and four bearings were about $1800 if I remember right, and then the machining of the torque housing and fabbing of the lower front bearing mount....... all labor. In the installation in a WC, there would have to be a "gear case" made for everything to fit inside. |
Posted By: Ken(MI)
Date Posted: 20 Sep 2017 at 9:03pm
| As for the question about making half shafts with smaller pinions to mate with the bull gears, yes it can be done, but to do so, you will need to make new bull gears and make new backing plates for the gear housing pans in order to move them to make everything fit. I've done this, not rocket science, but it would get pricey if you can't do much of it yourself. Gears themslves are not really that expensive unless you expect the gear cutter to do the engineering, then it becomes pricey,and you may be disappointed with the final product, especially for one offs. Knowing exactly what you want, what you want it made out of, how you want it made, finished, heat treated and finish machined in very specific terms is the key to buying economically produced and suitable gears for the expected use. |
Posted By: Robacpuller
Date Posted: 21 Sep 2017 at 5:52pm
| Thanks everyone for the advice. I will just have to do some more research. Gearing up for next year. |
Posted By: joetom08
Date Posted: 22 Sep 2017 at 4:13am
|
Easiest route is to just get a RC rear end since you have a unstyled wc. If you had a styled wc I'd look into the Sherman step down transmissions. Both of these options are a lot cheaper than having custom gears made. Hope to see you in symco next year rob! |
Posted By: DrAllis
Date Posted: 22 Sep 2017 at 9:15am
| I haven't done the gear ratio math but, changing to an RC rear end (slower ring and pinion) makes second gear like low gear and third gear like second. In the end, you wind up with a very slow Low gear and not much else. This is what I've been told by someone who tried it. The Sherman or Heisler 2-speeds work well, but don't like 75 HP or more run thru them. Eventually they fail from the strain. |
Posted By: Ken(MI)
Date Posted: 22 Sep 2017 at 12:11pm
| As the Dr. Pointed out, unless you are pulling dead weight, an RC rear end by itself isn't of much value. For transfer the real key is to be able to pull in 4th gear without adding additional gearing, thus keeping hp losses to a minimum, hp is only good if you don't waste it in transmission. |
Posted By: Dakota Dave
Date Posted: 05 Oct 2017 at 8:44pm
| WC with the disconnect removed has enough room for a short shaft Saginaw between the transmition and the rearend. Three speeds are cheap , small and plenty strong enough. |
Posted By: Robacpuller
Date Posted: 08 Oct 2017 at 12:46am
| Dakota Dave were do I get one |