I am thinking about putting 22in Lezaro Omega 3 piece wheels on my 99 Lightning. Any drawbacks or complications with rear gearing if I go to a taller than stock tire, and how to correct? Thanks for any input. I am a long time reader but first time poster to the forum. P.S. ride height is stock.

 

I have 22's on my truck and the only problem is the speeedo. When I am going 60 I am actually going 67.

 

I forgot to mention that you lose some braking capability also. The looks though more than make up for it.
https://www.f150online.com/galleries...4358&anum=4195

 

What size tires are you running?

 

Toyo proxes S/T 305/40/r22 I also have a 3-2 drop on the truck and have no problems.

 

Cool -I have the exact same tires and a 2/2 drop. I was wondering how far off my speedo was.

Have you gone to 4:10's yet?

 

No gears yet. Just moved to Cali and getting settled in and have not had time to do anything.

 

Did any of you guys with the 22's have any computer reprogramming done or are all shift points the same?Will 4:10 gears return performance to stock with the taller tires?

 

I didn't have anything other than the gears installed -it actually seems a little lower geared than stock. I like it better.

The moderator here has a cool tire/wheel size calculator link on his website. With the 305/40r/22's it was an 11.1% increase over stock. So, I somewhat assume it works backwards with 4:10's and the 11% increase to bring the gearing back down somwhere around 3:90? I'm sure there's probably a factor or two I'm leaving out. My shift points seem fine -but my speedo is off. I know it could be fixed with a chip -but I'm still enjoying my very very rare "Non Voided Warranty" status, that alone carries more weight than the SVT badge...or something. Well, at least until they void for gears...doh!

 

most of the trucks on here with 22s
seem to be running 295/30/22 . they are the closest
diameter in a 22 to stock 18s.

 

kind of O/T but..if your speedo is reading lets say +/-10 high...doesnt that mean that over time your mileage on your odometer would be way off? or does the odometer read off of somethinge else besides the speedo???

 

cut n pasted from calculator=

Dimensions

Dimension Tire A: 295/45 R 18 Tire B: 295/30 R 22 Difference
Width
Sidewall height
Overall height
Circumference
11.61" (295.00mm)
5.23" (132.75mm)
28.45" (722.70mm)
89.39" (2270.43mm)

22s
11.61" (295.00mm)
3.48" (88.50mm)
28.97" (735.80mm)
91.01" (2311.58mm)
+0.00" (+0.00mm)
-1.74" (-44.25mm)
+0.52" (+13.10mm)
+1.62" (+41.15mm)






Speedometer Error

Actual Speed Indicated Speed with Tire B Speedometer Error
5 mph (8.04 kph) 4.91 mph (7.90 kph) -0.09 mph (-0.14 kph)
10 mph (16.09 kph) 9.82 mph (15.80 kph) -0.18 mph (-0.29 kph)
15 mph (24.13 kph) 14.73 mph (23.71 kph) -0.27 mph (-0.43 kph)
20 mph (32.18 kph) 19.64 mph (31.61 kph) -0.36 mph (-0.57 kph)
25 mph (40.23 kph) 24.55 mph (39.51 kph) -0.45 mph (-0.72 kph)
30 mph (48.27 kph) 29.47 mph (47.41 kph) -0.53 mph (-0.86 kph)
35 mph (56.31 kph) 34.38 mph (55.31 kph) -0.62 mph (-1.00 kph)
40 mph (64.36 kph) 39.29 mph (63.21 kph) -0.71 mph (-1.15 kph)
45 mph (72.41 kph) 44.20 mph (71.12 kph) -0.80 mph (-1.29 kph)
50 mph (80.45 kph) 49.11 mph (79.02 kph) -0.89 mph (-1.43 kph)
55 mph (88.50 kph) 54.02 mph (86.92 kph) -0.98 mph (-1.58 kph)
60 mph (96.54 kph) 58.93 mph (94.82 kph) -1.07 mph (-1.72 kph)
65 mph (104.58 kph) 63.84 mph (102.72 kph) -1.16 mph (-1.86 kph)
70 mph (112.63 kph) 68.75 mph (110.62 kph) -1.25 mph (-2.01 kph)
75 mph (120.67 kph) 73.66 mph (118.53 kph) -1.34 mph (-2.15 kph)
80 mph (128.72 kph) 78.58 mph (126.43 kph) -1.42 mph (-2.29 kph)
85 mph (136.76 kph) 83.49 mph (134.33 kph) -1.51 mph (-2.43 kph)
90 mph (144.81 kph) 88.40 mph (142.23 kph) -1.60 mph (-2.58 kph)
95 mph (152.85 kph) 93.31 mph (150.13 kph) -1.69 mph (-2.72 kph)
100 mph (160.90 kph) 98.22 mph (158.04 kph) -1.78 mph (-2.86 kph)
105 mph (168.94 kph) 103.13 mph (165.94 kph) -1.87 mph (-3.01 kph)
110 mph (176.99 kph) 108.04 mph (173.84 kph) -1.96 mph (-3.15 kph)
115 mph (185.03 kph) 112.95 mph (181.74 kph) -2.05 mph (-3.29 kph)
120 mph (193.08 kph) 117.86 mph (189.64 kph) -2.14 mph (-3.44 kph)
125 mph (201.12 kph) 122.77 mph (197.54 kph) -2.23 mph (-3.58 kph)
130 mph (209.17 kph) 127.69 mph (205.45 kph) -2.31 mph (-3.72 kph)
135 mph (217.22 kph) 132.60 mph (213.35 kph) -2.40 mph (-3.87 kph)
140 mph (225.26 kph) 137.51 mph (221.25 kph) -2.49 mph (-4.01 kph)
145 mph (233.31 kph) 142.42 mph (229.15 kph) -2.58 mph (-4.15 kph)
150 mph (241.35 kph) 147.33 mph (237.05 kph) -2.67 mph (-4.30 kph)
155 mph (249.40 kph) 152.24 mph (244.95 kph) -2.76 mph (-4.44 kph)
160 mph (257.44 kph) 157.15 mph (252.86 kph) -2.85 mph (-4.58 kph)
165 mph (265.49 kph) 162.06 mph (260.76 kph) -2.94 mph (-4.73 kph)
170 mph (273.53 kph) 166.97 mph (268.66 kph) -3.03 mph (-4.87 kph)
175 mph (281.57 kph) 171.88 mph (276.56 kph) -3.12 mph (-5.01 kph)
180 mph (289.62 kph) 176.80 mph (284.46 kph) -3.20 mph (-5.16 kph)
185 mph (297.67 kph) 181.71 mph (292.37 kph) -3.29 mph (-5.30 kph)
190 mph (305.71 kph) 186.62 mph (300.27 kph) -3.38 mph (-5.44 kph)
195 mph (313.75 kph) 191.53 mph (308.17 kph) -3.47 mph (-5.59 kph)
200 mph (321.80 kph) 196.44 mph (316.07 kph) -3.56 mph (-5.73 kph)




If your speedometer has been calibrated for 295/45 R 18 tires, replacing them with 295/30 R 22's would result in the speedometer reading low by 1.78%.





Odometer Error

Actual Mileage Indicated Mileage with Tire B Odometer Error
1 mi (1.61 km) 0.98 mi (1.58 km) -0.02 mi (-0.03 km)
5 mi (8.04 km) 4.91 mi (7.90 km) -0.09 mi (-0.14 km)
10 mi (16.09 km) 9.82 mi (15.80 km) -0.18 mi (-0.29 km)
50 mi (80.45 km) 49.11 mi (79.02 km) -0.89 mi (-1.43 km)
100 mi (160.90 km) 98.22 mi (158.04 km) -1.78 mi (-2.86 km)
500 mi (804.50 km) 491.10 mi (790.18 km) -8.90 mi (-14.32 km)
1000 mi (1609.00 km) 982.20 mi (1580.35 km) -17.80 mi (-28.65 km)
5000 mi (8045.00 km) 4910.98 mi (7901.77 km) -89.02 mi (-143.23 km)
10000 mi (16090.00 km) 9821.96 mi (15803.54 km) -178.04 mi (-286.46 km)
50000 mi (80450.00 km) 49109.81 mi (79017.69 km) -890.19 mi (-1432.31 km)
100000 mi (160900.00 km) 98219.62 mi (158035.38 km) -1780.38 mi (-2864.62 km)




Same as with the speedometer, if your odometer has been calibrated for 295/45 R 18 tires, replacing them with 295/30 R 22's would result in the odometer reading low by 1.78%.




Effective Gear Ratio Change

Rearend ratio with 295/45 R 18's Rearend ratio with 295/30 R 22's
3.73 3.66



As far as gearing goes, if you have a 3.73 rearend and 295/45 R 18 tires, changing to 295/30 R 22's would be the same as if you kept your current wheels and tires but changed your rearend gears to 3.66's




RPM Change

In order to calculate your RPM change, you have to input an RPM on the form...



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That's a good looking wheel