Here's a few photos of Mopar Power steering pumps. I'll make this thread a sticky. There are always questions.
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Power Steering Pump differences
- Thread starter toolmanmike
- Start date
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Here's a quote from Slantsixdan about this pump pictured. The pump in the pic appears to be a Thompson/TRW item. Federal and Thompson pumps are interchangeable on the same brackets (though you have to check pulley alignment; there are multiple different pulleys for each pump); Saginaw pumps take different brackets. The early Saginaw pump has an oval filler neck and a scalloped plastic combination cap and dipstick. The late Saginaw pump has a "ham can" shaped reservoir rather than a round section housing the actual pump at the bottom of a filler neck, and still uses the scalloped plastic combination cap and dipstick.
4spdragtop
Well-Known Member
Heres another with 3 pumps
Z_Parker
Member
I'm trying to find the correct pump and reservoir for a conversion I am doing. The big question is do I need the new or the old style Saginaw pump/reservoir. I am going to use Classic Industries part# MD2675 bracket for an LA small block to a Saginaw pump but I'm not sure which pump will fit. I am also ordering the hoses for Saginaw to Mopar (MN7508) and a conversion steering box for 1962 to 1976 (MN7505). Can anyone point me in a direction? This is for a 1964 Dodge Dart SW with a newer LA 360 and a newer K member (though the K member shouldn't be a problem since the box is 1962 to 1976).
The trw
Eliminate all the hassle. Run manual steering. lol
moparspares
Well-Known Member
Id like to run a Saginaw Type 2 pump but it seems like no one makes the brackets for Mopar. I hate the old Saginaw pumps I have had nothing but problems with leaking/weeping pumps over the years.
72Dinger
Well-Known Member
Chrysler used the later pump up into the 80s on LA motors. I don't know about your part of the world but in the States you can score everything you need off trucks + vans at the junkyard. Mine came off an '85 Fifth Avenue.
And GM used the same pump at least into the late 70s.
BasinStBlue
Well-Known Member
Thanks Toolmanmike. You head must hurt knowing
Al the info that’s in you brain. LOL.But much appreciated.
Al the info that’s in you brain. LOL.But much appreciated.
Gadabout
Well-Known Member
Back in January I put out a thread seeking a dual groove power steering pump pulley and was surprised that several senior members said that there was no such animal; that they ere only aware of a single groove wheel. I'll need to reread my 1960 service manual. Anyways, I could not find anything close, and inquired about a 3D reproduction which at $500 motivated me to look some more. The eventual solution was to insert a solid bit of aluminum rod, weld it in, chop off the excess and carefully bore the precise diameter to match the spindle to some crazy 1/1000th of an inch tolerance. But Jerry's Show and Go got it exactly right and the steering works fine- except that wornout bushings on the Pittman and idler arms became the next Easter egg hunt, which was mission accomplished thanks to Mopar Mall.
abodyjoe
Well-Known Member
here is the actual link with all the information... https://www.bigblockdart.com/threads/power-steering-pumps.45861/
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BillGrissom
Well-Known Member
I probably mentioned this in another thread. A few additional data points: There were different TRW pumps. I found that OE on my 1965 Chrysler 383 has a larger diameter shaft than OE on my 1965 Dart 273. Found when I tried to use the Dart one on my Chrysler, after rebuilding it with a kit. But since the pulley didn't fit, nada. As mentioned in the post, there are many different pulleys, with different axial offsets and diameters.
Any changes to OE parts can lead you down a rabbit-hole of "can't get there from here". I found that in my 1965 Dart when I got the bright idea to use the later aluminum water pump. Seemed the OE design of disimilar metals: iron block to aluminum timing cover, to iron water pump defined "battery". Perhaps true since I found the OE timing cover almost corroded thru on the inside. Would have been bad to leak coolant into the crankcase. Also, the aluminum water pump was half the cost, lighter, and easier to source. What could go wrong? The inlet is on the passenger side, but I knew that and it matched a new radiator for a 1972 Dart (oldest I could order from Autozone). The radiator turned out for a slant, so had to adapt the return hose ID. A bigger problem was that the alum water pump is 1" thicker, so that changed the pulley alignments and belts, plus moved the fan closer to the now-thicker radiator, but worked all those issues. Another was that nobody makes a bracket to fit the TRW p.s. pump to the alum water pump (missing outer bolt hole of iron pump), so I had to buy a later Federal pump and bracket, after rebuilding the O.E. TRW pump. Thought, "no problem, I'll use it on my 1965 Chrysler someday." But foiled again (above). Whoever inherits this car someday will wonder, "WTF, why doesn't this fit?".
Any changes to OE parts can lead you down a rabbit-hole of "can't get there from here". I found that in my 1965 Dart when I got the bright idea to use the later aluminum water pump. Seemed the OE design of disimilar metals: iron block to aluminum timing cover, to iron water pump defined "battery". Perhaps true since I found the OE timing cover almost corroded thru on the inside. Would have been bad to leak coolant into the crankcase. Also, the aluminum water pump was half the cost, lighter, and easier to source. What could go wrong? The inlet is on the passenger side, but I knew that and it matched a new radiator for a 1972 Dart (oldest I could order from Autozone). The radiator turned out for a slant, so had to adapt the return hose ID. A bigger problem was that the alum water pump is 1" thicker, so that changed the pulley alignments and belts, plus moved the fan closer to the now-thicker radiator, but worked all those issues. Another was that nobody makes a bracket to fit the TRW p.s. pump to the alum water pump (missing outer bolt hole of iron pump), so I had to buy a later Federal pump and bracket, after rebuilding the O.E. TRW pump. Thought, "no problem, I'll use it on my 1965 Chrysler someday." But foiled again (above). Whoever inherits this car someday will wonder, "WTF, why doesn't this fit?".
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