Instructables
Picture of Rally style polyurethane mud flaps for $20
this is just one of many ways you can have nice aftermarket knock off mud flaps for $20.

we made these for a 95 subaru impreza but these steps are universal for any car!

tools you need:

two semi truck thick plastic mud flaps - about $10 each (from peterbilt shop in WA)
t-square ruler
ruler
ratchet and socket set
skil saw or rotory dremel tool 
drill
pencil or pen to mark you lines

optional:
can of spray paint or similar (for rounding off the edges)

 
Remove these adsRemove these ads by Signing Up

Step 1: Measuring and marking

Picture of measuring and marking
116_6603.JPG
116_6601.JPG
116_6604.JPG
116_6606.JPG
116_6609.JPG
116_6605.JPG
116_6608.JPG
measure your mud flaps on the car so you can determine how far you want yours to stick out, in our case we decided on the front having 1" more outwards and 1" longer and the back 1 1/2" wider and 1 1/2" wider

first remove the front mud flap and put it on top of the semi flap. make sure the flat side is facing down.

measure how much extra length you want and put the outside edge of your stock mud flap on that line, so you have the extra 1" of material, mark your lines. and trace the outline of the mud flap: this is where the t-square comes in handy!

dont forget to mark the mounting holes from the original mud flap

Step 2: Cutting

Picture of cutting
116_6612.JPG
116_6614.JPG
116_6615.JPG
now that you have your lines all traced on the truck mud flap its time to cut.

take your time! we left a little extra material on the edge so we could sand it down to look smooth.

when your done cutting it, lay the original mud flap on top of the new one to make sure your cuts, and measurements are good!


Step 3: Test fit

Picture of test fit
116_6617.JPG
116_6619.JPG
116_6620.JPG
now that its cut roughly. mount it on your car, you can get a feel of how it will look, and decide if you want it smaller.

(optional) also we measured and marked the top edge of the flap to cut the notch to look like armor mud flaps.
digdug1811 months ago
Great idea!