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Topic: Steering box leak update pic (Read 1169 times) previous topic - next topic

Re: Steering box leak update pic

Reply #25
I really don't know.
Frank & Daisy
NO LONGER  "looking for the perfect Foretravel
36' or less non slide preferred."  She has been found and is ours.
2003 U320 36' non slide  Unit 6103
Cummins ISM 450
Allison 4000MH

Re: Steering box leak update pic

Reply #26
Chalk's is better since they use the Shepherd kit plus more internal parts Shepherd deleted from their kits.

Blueprinting is only documenting the process
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: Steering box leak update pic

Reply #27
Actually, as Red Head explains it, blueprinting a Sheppard steering box to reduce play involves installing new bearings that vary by extremely small increments rather than just standard size bearings.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Steering box leak update pic

Reply #28
They did say they change the bearings if needed.

Frank & Daisy
NO LONGER  "looking for the perfect Foretravel
36' or less non slide preferred."  She has been found and is ours.
2003 U320 36' non slide  Unit 6103
Cummins ISM 450
Allison 4000MH

Re: Steering box leak update pic

Reply #29
Just talked to Chris at Chalk's.  There are no varing sizes of bearings for the box.  There are several different bearings in different locations in the box.  For a bearing location there is one bearing.  There are some thrust washers too.  If a shaft is worn so it does not fit the bearing correctly, they replace the worn shaft.  if a bearing is bad, it gets  replaced with the bearing for that location.

Saying bearings vary by small increments and long time Shepherd rebuilder Chalk does not know what they are talking about is marketing BS.  So, I respectfully disagree that Red Head is the very best.  But I will agree they are okay especially if they are close to your location.
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: Steering box leak update pic

Reply #30
From Red Head's website: About/Process. Red-Head Steering Gears

RedHead
Our re-manufacturing process:

    Machining out the housings and installing needle bearings
    Flame-spraying or replacing the shafts as needed
    Installing new control valves on some applications
  Custom fitting each worm & piston assembly with special ordered, precise over-sized ball bearings.

Other things we do to produce a top quality product include:

    Install every sector shaft on a lathe to check for straight and true
    polish the sealing surface to a higher polish than new.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Steering box leak update pic

Reply #31
Chris has seen these comments on Red Head site.  The process discussed is for older pickup trucks, not heavy duty truck units.  This is an excellent rebuild for those boxes.  He did not see the words"Blue Print" on their site.  Chris agrees on the machining needed for the pickup boxes but not needed on our boxes.
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: Steering box leak update pic

Reply #32
From Red Head's website: About/Process. Red-Head Steering Gears

RedHead
Our re-manufacturing process:

    Machining out the housings and installing needle bearings
    Flame-spraying or replacing the shafts as needed
    Installing new control valves on some applications
  Custom fitting each worm & piston assembly with special ordered, precise over-sized ball bearings.

Other things we do to produce a top quality product include:

    Install every sector shaft on a lathe to check for straight and true
    polish the sealing surface to a higher polish than new.

Yep that's how you make them better than new. And this is a skilled task that a seasoned mechanic develops threw repetition. Like setting up a ring gear on a rear end. And yes some will be better than others and some worse. I was happy with my factory gearbox and resealing for under a hundred bucks made sense to me. Could it be better, sure and possibly worse. Having six sets of matched bearings isn't cost elective for most shops for each gearbox type

 

Re: Steering box leak update pic

Reply #33
I'll take SWAG at this ball bearing question and guess it refers to some p/s gearboxes that have recirculating steel balls that resemble ball bearing. At overhaul I would assume these balls should be checked for wear.
Steve & Sandy
2003 U320 4220 WCDS, build#6160
Motorcade #17794
USMC '67-'71