+3 Through Frame Fittings - Short TF-S $31.99 In stock Quantity: 1 Add to Bag Product Details Through Frame Fittings - Short These stainless fittings make a clean pass through frame. Short fittings fit 1-3/4" to 2-1/4" wide frame rails. The "wheel" side is #3 AN male. The "chassis" side is 1/8"npt female. Requires a 9/16" hole in the frame. Save this product for later Favorite