What's up with the odd aerostar tire size? - Page 2 - Ford Truck Enthusiasts Forums



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What's up with the odd aerostar tire size?

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  #16  
Old 03-21-2008, 10:46 PM
99f350sd 99f350sd is offline
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Thanks.....much
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Old 03-23-2008, 10:21 PM
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I just looked at all my vans I have 215/70/14 which are avail...Hmmmm
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Old 03-24-2008, 12:22 AM
DaveMac2Vans DaveMac2Vans is offline
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I get mine at a place locally called TOPLINE TIRES; they had three different brands of 215 70 R 14 available. About $80 each mounted, balanced, and installed, with an 85K warranty.
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Old 03-24-2008, 03:03 AM
DCRB DCRB is offline
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I have 215-75 r14's all around... front two are kingstar tires from lesschwabe just over two years ago, rear are older ones... somethin along the lines of touring tires... idk.
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Old 03-24-2008, 06:44 PM
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The tire I have found I like is the All Position (Goodyear I think) 27x8.50R14LT

They firm up the ride without making it harsh, and really stabilize in corning. They dramatically improve the handling under weight. However, my van is used for work, and the rear seats are all removed, so I don't know how ride quality would be for them.

The size is only slightly larger than the largest factory tire used on the Aeros. I found it helped compensate for the inaccuracies in the speedometer. According to my GPS unit, I am going an average of 1 mpg slower than my speedometer indicates.

I bought my tires at Tire Pros.
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Old 03-24-2008, 07:51 PM
99f350sd 99f350sd is offline
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The stock tires on the awds that I have are all 215/70/14 thats what the door sticker says is stock from factory ..So what do the 215/75/14 tires go on? They are an inch different in dia.
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  #22  
Old 03-24-2008, 10:13 PM
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My 1990 awd came with 215/75/14.

Just keep in mind that these numbers are NOMINAL specs, provided at the discretion of the manufacturer, and will vary from brand to brand, sometimes even among models of the same brand.

I would get the biggest tires that would fit on the rim, and not rub anything on extremes of turns and suspenion travels.
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Old 03-24-2008, 10:35 PM
99f350sd 99f350sd is offline
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Yes I suppose if you don't car about your speedo. The door sticker will tell you the tire size the car was meant to have in order to keep everything the way it was designed..IMO


Dick
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Old 03-25-2008, 04:25 AM
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I put 6x15" ranger rims with 215/65 15's on my '97 shorty.
The rims and tires are the same diameter as the OE 14's. Speedometer is unchancged.
They look better and the tires are wider and the rims are "punched" somewhat. No rubbing or scraping. The tires are Yokohama Avids, high miliage tires.
I got the ranger rims for $25.00 apiece and the tires were $50-55 apiece from Tire Rack.
Beaned
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  #25  
Old 03-25-2008, 06:00 AM
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simple matter to change PSOM programming to adjust speedo for diff. tire size
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  #26  
Old 03-28-2008, 12:01 PM
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If I were to put different size tires on my Aero, I would want them to be significantly smaller diameter so as to give a boost to the gear ratio. I have a 3.73 and a tire 10% less diameter would make it effectively a 4.10. Not sure I would like the lowering effect, but then that would aid handling. Maybe I'll do that next time I need tires.

Or easier yet, maybe I can get something like a 4.50 ratio rear end.
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Old 03-28-2008, 02:37 PM
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The Aerostar is still a truck weighing around 4000 pounds, and I don't think you want to put too small of tires on it. Also, if you have AWD, you want to make sure the front and rear tires match, or it will try to lock the center diff from the speed differences that it will interpret as slippage.
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Old 03-28-2008, 03:23 PM
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96_4WDR - First, what's the PSOM? I'm assuming the computer in the dash that controls the speedo display? Second, how do you reprogram the PSOM? That'd be nice to know if I go with a differing tire size.

TallPall - That's funny you have a 3.73 and want a 4.10 rear in your aero. I have a 4.10 in my 3.0 and I'm thinking about getting a 3.73 rear for a little better mpg. Is your van a dog with the 3.73? Do you have a 3.0? Why do you want to get rid of it and go with a 4.10? Thanks...
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Old 03-28-2008, 06:13 PM
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easily found using search function
http://www.ford-trucks.com/forums/69...highlight=psom
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Old 03-30-2008, 10:08 PM
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Quote:
Originally Posted by Aero-fan
TallPall - That's funny you have a 3.73 and want a 4.10 rear in your aero. I have a 4.10 in my 3.0 and I'm thinking about getting a 3.73 rear for a little better mpg. Is your van a dog with the 3.73? Do you have a 3.0? Why do you want to get rid of it and go with a 4.10? Thanks...
I would like a little more umpf off the line, that's all. I feel it's a bit of a dog with the 3.73. I don't know if you should change it out, especially since you have the longer and presumably heavier van. We could trade rear ends, but you'd get a 134,000 miler and that's a bit much. I did have the dope changed at 100,000 miles to Valvoline synthetic though.
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