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Author Topic: Peerless 820 Transaxle & 017 Kit  (Read 38534 times)
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RoMow
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« on: March 02, 2010, 03:18:41 PM »

   For those interested in installing the 017 Kit in the Peerless 820 transaxle, the complete list of the Peerless parts you should have to properly set up this system, along with the quantities and the 820 Transaxle IPL Reference Numbers, are:
1) 776318 Output Shaft  5A
1) 778274 27T Spur Gear  15A
1) 778275 19T Spur Gear  7
1) 778276 31T Spur Gear  6
1) 778277 19T Spur Gear  6A
2) 780002 Spacer Bushing  117
6) 780045 Thrust Washer  31B
3) 786148 Gear Spacer  93
1) 1/4" square x 13/16" long Key (94)
3) 2AKH8 Grainger 1" ID Lock Ring, 1-piece (26) or
  3) 2ANZ5 Grainger 1" ID Lock Ring, 2-piece (26)
?) 788067C Peerless Bentonite Gear Lube  90
(Reference Numbers in parentheses refer to the reference number of the STOCK part.)
      These are the contents of the 017 Kit I sell either direct or on eBay.  I also include a set of color-coded instructions based on the Peerless 820 IPL Exploded View and the 820 Service Manual, as well as a 3.5 oz. tube of Permatex 599 UltraGrey RTV case sealant, and an 8 oz. bottle of Bentonite to replace that which is lost during conversion.  I can sell these kits for $279.00, shipping included, and, if you are outside of Missouri, no sales tax.

   To answer other questions I've seen posted:

   PEERLESS PARTS AVAILABILITY --
   What is left of Tecumseh Engines was sold to Certified Parts Corporation (CPC), 1111 W. Racine St., P.O. Box 8468, Janesville, WI, 53547-8468, (608) 752-9441.  Peerless Gear is NOT out of business -- they are alive and well and still producing transaxles (and 017 parts!) in Salem, IN.  And, yes, when Tecumseh went belly-up, Husqvarna bought Peerless, so they are now Peerless Gear, Division of Husqvarna.  If you do not have a local Peerless (formerly Tecumseh) parts source, please contact me.
  
   GEAR RATIOS
   820 ratios: I have seen some postings that tell the ratios of a 6-speed 820 transaxle.  These MAY or MAY NOT be correct!  It depends on what model 820 you have.  There are 11 possible gear-speed ratios available for the 820, and these ratios will differ depending on what Spec Number follows the "820-" on your transaxle (or what number DID follow the "820-" before someone threw the tag away!).  If you absolutely need to know the ratios of your 820, the only accurate way (unless you know you have an original 820 with the ID tag, and have access to an 820 IPL to determine the number of gear teeth for computation) is to remove the cover and count the teeth of all the gear pairs, then do the multiplication.
   The available 820 gear ratios, along with their respective number of gear teeth, are as follows, listed from lowest to highest:
RATIO     NO. of TEETH
4.55:1      9:41
3.08:1    12:37
2.33:1    15:35
2.13:1    16:34
1.78:1    18:32
1.50:1    20:30
1.17:1    23:27
1:1        25:25
0.79:1    28:22
0.67:1    30:20
0.61:1    31:19
Note that in the gear-teeth column, the first number is always the number of the teeth on the gear that fits on the countershaft with the bevel input-driven gear.  Note also that, with the exception of the 3.08:1 ratio, all the gear-ratio pairs have teeth counts that total 50.  And, on the 4.55:1 “granny low” ratio, the 9-tooth gear is part of the countershaft.
   The standard input ratio for the 820 transaxle is 2.54:1 (13T:33T); this cannot be changed.
   I keep most of these gear pairs in stock.

   Lastly, the stock output/final-drive ratio of the 820 transaxle is 8.02:1.  The 017 kit speeds this up to 2.31:1 and eliminates the differential.  Yes, I am also the one who has the 2-gear 5.61:1 and 3.44:1 output gearsets that allow you to keep the differential, should you ever want to use it at a later date.  And...I also offer the 2-tooth 820 axle spider gears that allow you to lock the differential without welding anything.  

Respectfully,
Rodney Rom
  Tecumseh-Peerless Master Technician
  Technician General, ULGE
ROMWORK, Inc.
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RR 1, Box 232
Butler, MO  64730-9627
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« Reply #1 on: March 02, 2010, 04:09:31 PM »

I use the 2 gear set up in my 820 and it works excellent. I would recommend this st up to anyone wanting a cheaper way lower (numerically) the final ratio of their 820.

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« Reply #2 on: March 03, 2010, 08:35:28 AM »

Rodney, I just received my 3.44 to 1 gearset.  Hopefully I will get it put in this week or so. 

Rodney is a great guy to deal with for those interested in running an 820.
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You never win a race by focusing on one aspect of the race!  Motor isn't everything, but you better have a good one!  Chassis too!  But remember, a driver can take a slow machine and make it faster!  I may not have/be the best of any of these but I'm trying!
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« Reply #2 on: March 03, 2010, 08:35:28 AM »

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« Reply #3 on: March 05, 2010, 11:12:55 AM »

AXLE Addendum:

   For those interested in stock axles to use as-is or to modify, Peerless lists axle shafts in the 820 IPL in the following lengths:
Length (Left)                   P/N                              Length (Right)                P/N
12-5/16" (31.3 cm)        774832                    16-3/16" (41.1 cm)        774831
13-9/32" (33.7 cm)        774960                    17-3/16" (43.7 cm)        774961
14-5/16" (36.4 cm)        774856                    18-3/16" (46.2 cm)        774855
15-7/16" (39.2 cm)        774938*                   22-1/16" (56.0 cm)        774915*
16-31/32" (43.1 cm)      774970*                   22-7/32" (56.4 cm)        774971*
                                                               23-13/16" (60.5 cm)       774823*
                                                               26-1/4" (66.7 cm)          774795A
                                                               27" (68.6 cm)                774825

Axles marked with an asterisk (*) are currently obsolete, but there may still be inventory on dealers' or distributors' shelves.

Axles can be interchanged left-to-right.  To determine overall end-to-end axle length (OAL) using these dimensions, remember that the differential spider-gear cross-pin is 1/2" diameter and the axles nearly butt against this pin, so add 1/2" to the total of the two axles you're wanting to use and you have the overall length.  

The popular 820-016 & 820-040 Sears/Craftsman transaxle uses the 774832 and 774831 axles.  The 820-037 Murray transaxle uses the 774832 and 774961 axles.

Peerless uses alloy steel for these axles, and the area just outboard of the spider-gear splines is case-hardened to ride inside the needle bearings.  The rest of the axle is not hardened, so it can be remachined, re-keyed, end-drilled-&-tapped, etc. with normal (machine) shop tools to suit your needs.  
CAUTION: Using a non-hardened axle, no matter what alloy, in the standard needle bearings will cause galling of the axle metal and rapid destruction of the bearings.  That is why Peerless makes the bronze bushings to replace the needle bearings if you are installing an 017 Kit.

Happy tinkering!

Respectfully,
Rodney Rom
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« Reply #4 on: March 05, 2010, 12:36:42 PM »

   
CAUTION: Using a non-hardened axle, no matter what alloy, in the standard needle bearings will cause galling of the axle metal and rapid destruction of the bearings.  That is why Peerless makes the bronze bushings to replace the needle bearings if you are installing an 017 Kit.


H Rod.  I bought my 820 and 017 kit from you almost 4 years ago before I knew Heymow existed.  Do you have a part number for those bronze bushings to replace the needle bearings?  I Never did like running the needles over a keyway to begin with.  I'd like to do something different with them.  Thanks.
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« Reply #5 on: March 06, 2010, 02:28:03 PM »

Hi Sporty! The P/N 780002 listed in the 017 Kit is the bronze bushing that replaces the needle bearing.  I presume you're still running the 820?

Sincerely,
Rodney
Sporty -- If you bought an 017 Kit from me, the bronze bushings should have been included in the kit.  Did you buy the kit minus the bushings?
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« Reply #6 on: March 07, 2010, 07:51:10 AM »

Still running the old 820.  Your 017 kit didn't have the bushings then.  I talked to you about running the bearings over a keyed shaft and you said guys do it all the time so I went with it.  I haven't seen you push any 700 trans.  You sell those and the parts to race prep too?
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« Reply #7 on: March 07, 2010, 08:55:32 AM »

Sporty,
   When I first started selling the 017 Kit, racers told me they did run their keyed axles in the needle bearings, but later, I learned better.  That's why I now include the bushings in my kit.

   I concentrate on the 820s and, occasionally, an MST 200-Series.  I can get you whatever Peerless parts you need for the 700.  I did set up one 700 a couple of years ago for a racer in Georgia.  There are many others who have more knowledge of the 700s than I do.  A while back, someone sent me a sheet George Herrin put out on what to do to race-prep a 700 -- you might check with him.
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« Reply #8 on: March 08, 2010, 10:20:43 AM »

Can you run the bronze bushings in place of the needle bearings without running the 017 kit?
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You never win a race by focusing on one aspect of the race!  Motor isn't everything, but you better have a good one!  Chassis too!  But remember, a driver can take a slow machine and make it faster!  I may not have/be the best of any of these but I'm trying!
Chris Cox- CP/Mod X, AP
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« Reply #9 on: March 08, 2010, 11:26:24 AM »

   When I first started selling the 017 Kit, racers told me they did run their keyed axles in the needle bearings, but later, I learned better.  That's why I now include the bushings in my kit.

Not a problem Rod.

I'm thinking these will work too.

http://www.mcmaster.com/#sleeve-bearings/=64p247
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« Reply #10 on: March 10, 2010, 08:45:46 AM »

Can you run the bronze bushings in place of the needle bearings without running the 017 kit?
Since the inner end of the axle is hardened to ride inside the needle bearing, I would think it would be more friction-free to use the needle bearings, but I am checking on this with my Peerless engineering contact.  I will get back to you as soon as I receive a reply. 
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« Reply #11 on: March 10, 2010, 09:26:00 AM »

Can you run the bronze bushings in place of the needle bearings without running the 017 kit?

   Reply direct from Peerless Engineering:
"We absolutely do NOT recommend substituting the needle bearing assemblies with the bronze bushings.
"The 820 series transaxle is a heavy-duty unit that is suited for ground engagement applications, and the differential is the most heavily-loaded area of the transaxle.  The bushings will not hold up at all under those conditions, and will quickly lead to failure and transaxle damage.
"The 820-017 has no differential and a solid axle. It was designed specifically for a different type of application. The bushings mostly support the axle solely for the output gear center distance. An inner needle bearing in that design could possibly induce premature failure due to alignment issues.
"Again, do not substitute needle bearing assemblies with the bronze bushings."

   Knowing that, and taking into account the differences between "ground engagement" (plows and tillers) and racing, replacing axle needle bearings with bushings would be one of those trial-and-error attempts you could report back on, if you chose to do it.

   "Knowledge is power!"

Sincerely,
Rodney
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« Reply #12 on: December 29, 2010, 07:24:52 PM »

RATIO Addendum

   If you are planning on using a Peerless 820 transaxle and are lucky enough to find a good used one that hasn’t been opened up and/or had the ID tag removed, the following chart will tell you the shift-gear ratios of all 820 transaxles.  With one noted exception, these ratios were compiled from the Peerless 820 Illustrated Parts Lists (IPL).
   Due to space limitations, only the reduction/overdrive part of the ratio is shown, but all ratios are ":1."

Model     1st       2nd     3rd     4th     5th     6th      Rev.      OEM
820-001   4.55   1.50   1.00   0.79   0.61            1.40      Murray
820-002   3.08   2.33   1.78   1.50   1.00   0.67   2.00      Ferris
820-003   3.08   2.33   1.50   1.00   0.79            2.00      Scag
820-004   3.08   2.33   1.50   1.00   0.79            2.00      MetalCraft   
820-005   3.08   1.78   1.50   1.17   1.00   0.79   2.00      Ransomes

820-006   2.33   1.50   1.00   0.79   0.61            2.00      (Export)   
820-007   2.33   1.78   1.50   1.17   1.00   0.67   2.00     Ferris
820-008   3.08   2.13   1.50   1.00   0.79            2.00      Bunton
820-009   2.33   1.50                                      2.00      Aeroil
820-010   4.55   3.08   2.33   1.50   0.79   0.61   2.00     FHP/Sears

820-014   3.08   2.13   1.50   1.00   0.67            2.00
820-015   2.33   1.78   1.50   1.17   1.00   0.79   2.00     Ferris
820-016   4.55   2.33   1.50   1.00   0.79   0.61   2.00     FHP/Sears
820-017
 Snapper   2.33   1.17   1.00   0.79   0.61           2.00
 Peerless   2.33   1.50   1.17   1.00   0.61           2.00

820-018   4.55   1.50   1.00   0.79   0.61            2.00      Murray
820-019   3.08   1.78   1.50   1.00   0.79            1.40   
820-020   3.08   1.78   1.50   1.00   0.79            2.00
820-021   4.55   2.33   1.50   1.17   1.00   0.79   1.40
820-022   4.55   2.13   1.50   1.00   0.79   0.61   1.40     Murray

820-023   4.55   2.33   1.50   1.17   0.61            1.40      Greencare   
820-024   4.55   2.33   1.50   1.00   0.79   0.61   1.40     Toro
820-025   4.55   3.08   2.13   1.50   1.17   0.79   2.00     Tecumseh
820-026   3.08   1.78   1.17   1.00   0.79            2.00       Garden Way
820-027   4.55   2.13   1.50   1.00   0.79   0.61   1.40      Smithco West

820-028   4.55   1.50   1.00   0.79   0.61            2.00      Murray
820-029   4.55   1.50   1.00   0.79   0.61            2.00
820-030   4.55   2.13   1.50   1.00   0.79   0.61   1.40
820-031   3.08   1.78   1.17   1.00   0.79            2.00
820-032   4.55   2.33   1.50   0.79                     2.00

820-033   4.55   2.33   1.50   1.17   1.00   0.61    1.40
820-034   4.55   3.08   2.33   2.13                      1.00
820-035   3.00   2.07   1.50   1.225   0.90   0.67   1.40
820-036   1.78   1.17   0.61                               1.40
820-037   4.55   1.50   1.00   0.79   0.61             2.00      Murray

820-038   3.08   1.78   1.17   1.00   0.79             2.00
820-039   3.08   0.67                                       1.40
820-040   4.55   2.33   1.50   1.00   0.79   0.61    2.00   Husqvarna
820-041   4.55   2.13   1.50                              1.40   U.S. Motor Power

NOTES
A.  Most 820s were 5- or 6-speed transaxles.  However, there are a couple of 2-speeds (820-009 & 820-039), one 3-speed, so far (820-036) and two 4-speeds (820-032 & 820-034).
B.  Letter suffixes behind the transaxle Model and Spec Number will have the same ratios as the unlettered base model.  For example, an 820-016D has the same ratios as a plain 820-016.
C.  I tried to supply as many OEMs as possible.   The “OEM” listing shows for whom the transaxles were made.  Therefore, if someone tries to sell you “an original, good condition 6-speed 820-016 off a Murray rider,” BEWARE, since Murrays didn’t come with the 820-016.
D.  The OEM designation also includes their “badge-engineered” models.  For example, Toro (820-024) can also include Lawn-Boy; Murray can include Scotts; Ferris = Simplicity; Garden Way = Troy-Bilt; Husqvarna = Poulan, Weed-Eater, Sears; etc.
E.  The 820-035 transaxle parts breakdown showed MST 200-Series gear ratios and part numbers for the gears.  I find no reason to doubt this, but I was not aware that the MST 200-Series gears would interchange with the 820 gears.  According to Peerless Engineering, "The 820-035 was released with the gears shown in the IPL based on the specific customer/application requirements. We do not recommend substituting gears in any model other than what the design specification dictates as shown by the parts in the IPLs. Doing so could result in transaxle failure."


F.  The Snapper IPL shows different Forward ratios for the 820-017 than the Peerless IPL. I have two original NOS 820-017 transaxles that came from a Snapper distributor, and these have the Peerless ratios.  I haven’t yet been able to learn why there is a discrepancy.
G.  The unique 1:.00:1 Reverse Ratio for the 820-034 is correct.  If anyone needs a high-speed Reverse, this special Reverse sprocket pair is the way to go!



Respectfully,
Rodney Rom
Rom’s Reworks
Butler, MO
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« Reply #13 on: January 07, 2011, 10:03:26 AM »

GREAT INFO RODNEY. I WOULD LIKE TO POST YOUR INFO TO MY SITE. IS IT OK WITH YOU?
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« Reply #14 on: January 11, 2011, 03:20:30 PM »

Hi John,
   My email is in my Profile.  Get back to me with your email address and we'll discuss it.  I have a couple of questions I need to ask.
Sincerely,
Rodney
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