Cubflyer Posted October 7, 2023 Share Posted October 7, 2023 I need a little help here. My turn has come to replace my M100-PMN31 Sheppard steering box, it is leaking fluid, not a hose or a fitting. So I called Weller and they said “There is no TRW box that cross references to the Sheppard”. “We have cores to rebuilt Sheppard boxes, but none ready on the shelf, these are available with a 15 day wait”….. not what I expected when I asked for the 'drop-in' replacement for the Sheppard. So here is my question, since ‘everyone’ says it’s a must to go to a TRW, what is the part number of the TRW that fits? And the part number of the correct pitman arm? so I shop for the TRW steering box. P.S. It is possible to remove the hoses, hook them together with a union fitting (stop the leak and keep fluid in the pumping system) and drive without power steering from Denver to Memphis.... but it will not be fun! Ken Link to comment Share on other sites More sharing options...
Solution JDCrow Posted October 7, 2023 Solution Share Posted October 7, 2023 Here is the one that they sent me 1 Link to comment Share on other sites More sharing options...
klcdenver Posted October 7, 2023 Share Posted October 7, 2023 Look and see which fluid is in your reservoir. Then get some compatible stop leak and see if you can slow it down until a TRW comes available. Link to comment Share on other sites More sharing options...
Cubflyer Posted October 7, 2023 Author Share Posted October 7, 2023 26 minutes ago, klcdenver said: Look and see which fluid is in your reservoir. Then get some compatible stop leak and see if you can slow it down until a TRW comes available. First thing I tried.... no joy, with no parts availably, I went to plan "B" and bypassed the leak (steering box) ate a big can of Popeye the sailorman's spinach and drove home! JDCrow, Thanks! I'll look it up and see if I can get one heading my way! I have more traveling to do! Ken Link to comment Share on other sites More sharing options...
JDCrow Posted October 7, 2023 Share Posted October 7, 2023 42 minutes ago, JDCrow said: Here is the one that they sent me The value of never permanently deleting emails 2 Link to comment Share on other sites More sharing options...
Cubflyer Posted October 7, 2023 Author Share Posted October 7, 2023 Looks like Weller has stock somewhere, I'll have to wait until Monday to find out... hopefully in stock in Memphis! Thanks again! Link to comment Share on other sites More sharing options...
vito.a Posted October 7, 2023 Share Posted October 7, 2023 Over 100 pages of steering box info including contact names at Weller and part numbers. Steering Box Play- Sheppard M100 SHIM or Swap for a TRW ? - iRV2 Forums 1 Link to comment Share on other sites More sharing options...
timaz996 Posted October 7, 2023 Share Posted October 7, 2023 I went with Matt Miller at Weller Truck MI 616-724-3762 mamiller@wellertruck.com Link to comment Share on other sites More sharing options...
dennis.mcdonaugh Posted October 8, 2023 Share Posted October 8, 2023 There's at least one Sheppard box that has no direct TRW replacement. Link to comment Share on other sites More sharing options...
Cubflyer Posted October 8, 2023 Author Share Posted October 8, 2023 50 minutes ago, dennis.mcdonaugh said: There's at least one Sheppard box that has no direct TRW replacement. Dennis, Do you happen to know the Sheppard part number? According to my 'build sheet' my unit is a M100 PMN31..... it has a 10.5" steering arm attached. I believe the unit and arm that JDCrow suggested is a good replacement. Ken Link to comment Share on other sites More sharing options...
klcdenver Posted October 8, 2023 Share Posted October 8, 2023 The attached should take out any guessing. I completed this change out about 6 months ago. I used a portable mag drill to drill the adjustment hole which worked great. If you have any questions just contact me. Kenneth Link to comment Share on other sites More sharing options...
dennis.mcdonaugh Posted October 8, 2023 Share Posted October 8, 2023 2 hours ago, Cubflyer said: Dennis, Do you happen to know the Sheppard part number? According to my 'build sheet' my unit is a M100 PMN31..... it has a 10.5" steering arm attached. I believe the unit and arm that JDCrow suggested is a good replacement. Ken I think it’s the M80. There’s a wealth of info on iRV2 about the various Shepard steering gears. I believe the M100 is the direct swap. Link to comment Share on other sites More sharing options...
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