Speedo problem
Senior User
Joined: Sep 2011
Posts: 442
Likes: 1
From: Roanoke, VA
When looking up the correct drive (output shaft) and driven (end of the cable) speedo gears in the 1980/89 truck parts catalog, three things must be known.
Axle ratio, trans type and tire size. How many 1980's F350's (or F250's) came with factory installed 215/85/16, 235/85/16 or any other size of P-Metric radial? NONE!
If I knew what the 235 tires on your truck cross referenced to the original tire size, then I can give you the info.
Axle ratio, trans type and tire size. How many 1980's F350's (or F250's) came with factory installed 215/85/16, 235/85/16 or any other size of P-Metric radial? NONE!
If I knew what the 235 tires on your truck cross referenced to the original tire size, then I can give you the info.
However I got the original size from the door sticker. This truck I believe was an original chassis cab truck it that makes a difference.
Here is a picture of the door sticker.
Thank you for your help with this.
Old School Hot Rodder
Joined: Feb 2006
Posts: 6,472
Likes: 11
From: Exmore, VA
Speedo problem
hadfield, the first part of your VIN, 2FTJW35L is exactly the same as mine, if you look right underneath that it says "truck" your truck was a complete F350 crew cab DRW just like mine except 85 rather than 86 and a 4 speed instead of a C6. Here is the label form mine.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
Series code (first 3 digits of the VIN): 2FT = FoMoCo of Canada LTD - Complete Vehicle // Type-GVW: W353 = F350 2WD Crew Cab, 10,000 GVWR.
Parts catalog does not list any 215 or 235 tires for the 3.54-1 ratio, so I need the equivalent size, example: 8.00-16.5.
Parts catalog does not list any 215 or 235 tires for the 3.54-1 ratio, so I need the equivalent size, example: 8.00-16.5.
Old School Hot Rodder
Joined: Feb 2006
Posts: 6,472
Likes: 11
From: Exmore, VA
Bill, can you get him in the ballpark using my truck's information but with his transmission? My label and his both show the LT metric tires, or should it be tyres since they are both Canadian built. LT215 is an 8.50-16 as near as I can determine and LT235 would be a 9.25-16. I can pull my old C6 driven gear and get a tooth count if that will help.
Last edited by 85lebaront2; Mar 8, 2012 at 12:24 PM. Reason: typo
Senior User
Joined: Sep 2011
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From: Roanoke, VA
Thread Starter
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Posting Guru
Joined: Jun 2004
Posts: 1,092
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From: Casa Grande
Just wanted to get on here and say Thanks to everyone for the help and a BIG thanks to NumberDummy for the parts numbers and vendors.
Got the gear and snap ring ordered. Carpenter had both, $39.99 to my door.
Thanks again.
Got the gear and snap ring ordered. Carpenter had both, $39.99 to my door.
Thanks again.
Moderator
Joined: Nov 2007
Posts: 22,415
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From: Denver Metro Area, CO
I think he had plans for the weekend; some sort of SoCal FTE GTG yesterday, and he's been dealing with contractors working on his house.
That, and he sleeps *weird* hours........
That, and he sleeps *weird* hours........
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Senior User
Joined: Sep 2011
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From: Roanoke, VA
I'm sure he'll be back eventually. I'm not tearing my tranny apart for a week or so.
Fleet Mechanic
Joined: Jun 2010
Posts: 1,251
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From: North Carolina
That place (Dennis Carpenter Ford) is right down the road from me. I keep wanting to go by there but haven't yet. That's the extent of my contribution to this discussion!
Good going kedwin, I'l be interested to know what your mpg are once you have the odometer reading right.
Good going kedwin, I'l be interested to know what your mpg are once you have the odometer reading right.
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Posting Guru
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From: Casa Grande
That place (Dennis Carpenter Ford) is right down the road from me. I keep wanting to go by there but haven't yet. That's the extent of my contribution to this discussion!
Good going kedwin, I'l be interested to know what your mpg are once you have the odometer reading right.
Good going kedwin, I'l be interested to know what your mpg are once you have the odometer reading right.
Senior User
Joined: Sep 2011
Posts: 442
Likes: 1
From: Roanoke, VA
So as I was driving it we used my buddys GPS and figured with the tire size increase I am reading 10% low. So if it say 50 it's actually 55.
When we pull the tranny I'll get the original gear info off it. Then once it's regeared I'll do it again with the gps and figure where I need to go.
When we pull the tranny I'll get the original gear info off it. Then once it's regeared I'll do it again with the gps and figure where I need to go.