Rebuilding a 440 reverser. Book calls for type 'A' transmission fluid. What is a substitute, can't find 'A' fluid.
Thanks,
Mark
440 reverser
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- 40C crawler
- Posts: 19
- Joined: Wed Apr 18, 2018 5:59 am
- Location: Southeastern Pennsylvania
Re: 440 reverser
When the use of automatics began the fluid for GM automatics was called Type A. Ford transmissions used Type F. Different friction coefficients. Lavoy or Stan may have more info but the Dextron II, Dextron III, etc. are the GM spec fluids that took Type A's place as transmissions and fluids improved. I used Dextron Type III in my 430 reverser. HYGARD or a equal might be ok but I can't say.
- Stan Disbrow
- 350 crawler
- Posts: 2898
- Joined: Fri Jul 15, 2005 3:13 pm
- Location: Raleigh, NC
Re: 440 reverser
Hi,
I would not use ATF. I use regular tractor hyd fluid, which is as close as we get to Type A these days. I find HyGard makes them rather noisy as it is thinner.
Stan
I would not use ATF. I use regular tractor hyd fluid, which is as close as we get to Type A these days. I find HyGard makes them rather noisy as it is thinner.
Stan
There's No Such Thing As A Cheap Crawler!
Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)
Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)
Re: 440 reverser
Run HyGard or equivalent only.
Lavoy
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com
Owner and moderator www.jdcrawlers.com
- Stan Disbrow
- 350 crawler
- Posts: 2898
- Joined: Fri Jul 15, 2005 3:13 pm
- Location: Raleigh, NC
Re: 440 reverser
Hi,
I should be a tad more clear. When I say hydraulic oil, I mean the modern transmission, gear and hydrauilc oil. Of which, Hygard is a brand name of John Deere. There are equivalents from other brands, some of which are of a higher viscosity than Deere's offering. The higher viscosity oils tend to make the spyder gears in the reverser run quieter than HyGard.
That said, that kind of product is what you need. You will not find a Type A out there anywhere.
Stan
I should be a tad more clear. When I say hydraulic oil, I mean the modern transmission, gear and hydrauilc oil. Of which, Hygard is a brand name of John Deere. There are equivalents from other brands, some of which are of a higher viscosity than Deere's offering. The higher viscosity oils tend to make the spyder gears in the reverser run quieter than HyGard.
That said, that kind of product is what you need. You will not find a Type A out there anywhere.
Stan
There's No Such Thing As A Cheap Crawler!
Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)
Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)
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