By torch-heating a portion of the tubing close to the pumpkin, the housing slowly contracts in that area, pulling the open end of the tubing a fraction of an inch in that direction. Anyone have any info they might be able to offer up? In addition, any tips would be appreciated on the sequence and precautions to minimize warping.
We still disagree on the end result for the OP. A tool like this is not inexpensive but is worth the investment if you will be narrowing several rearends. I was curious what a jig for such an operation looks like/consists of and how the process is carried out. Narrowing a 9-inch rearend the old fashioned way. Jig making: DIY expansion slots (shorts tip) by Make Things on 2023-03-14 05:30:18. Does anyone have any pictures? So, rather than cut 2 13/16" (5 5/8" / 2 = 2 13/16") from each side we will cut 4 13/16" from the driver's side and 13/16" from the passenger's side. I am using a 2 inch bar, and really want to custom make my own donuts. Typically, rearends used for '32 Ford applications will have a backing plate to backing plate width of between 56" - 58".
Start by determining what the overall width (the face of the brake drum to the other brake drum face) on your particular vehicle will be. Rear End Measure Tool, Housing Length, Each. Floater Rear-End Narrowing Kit 2 9". Narrowing Kit, Rear Axle, Chevy, Dana, Ford, Chrysler, 72 in. Have a good ground heavy duty shaft to use. Homemade rear end narrowing jim.fr. Every part on this old rear is available as reproduction new but, if you want an original housing under your ride you have to use the old stuff. The metal rod assures correct alignement no matter how much welding was done on the housing.
Just take your time and skip around allowing ample cool time is about all I can is where experience cant really be clearly explained. See all 27 photos To set the bearing end in the correct position (so the brake backing plate will line up correctly), the housing is first dialed in with 5 degrees of angle to the rear. Homemade rear end narrowing jig for metal. The passenger's side was warped about a 32nd of an inch but the housing end was welded back on using the tool so it is perfectly aligned even though the tube is ever so slightly out of alignment. We came up with 1-3/8 inches per cup. 875 inches from both sides of the center of the housing for a final width of 45-3/4 inches (a lot more narrow than you'd find under a 1934 with 8-inch American five-spoke wheels).
Pinion Centering Plate, Pinion Center Line Gauge, Each. There is a fair amount of configuring when cutting down a rearend. We really would like to tack the pads on before we weld the rear brace. I can make denario quicker doing other things. You can order this part by Contacting Us. Axle narrowing jig for sale. 5-Speed Richmond faceplate Liberty box. The guy that posted on pirate 4x4 is on the right track, I have narrowed rear ends and the set up I used was 2" and 2 1/4" solid round bar through the middle, believe it or not when you weld the tubes, TIG or MIG it still pulls and bends that 2" solid bar, but if you heat and cool the tubes until the bar slides out nicley then you know it is straight.
Before installation and welding, both the flange and the housing tube were chamfered to create a better and stronger weld. Finally, the jig end flanges are removed along with the metal rod and then the center chunk is removed. With the rod installed, the correct size jig flange is installed in the bearing race and the housing flange can be slid on the rod and secured. The housing end retainer's also use a thumb set screw and not a pinch bolt. And the method they use isn't one used too much anymore; it's definitely old school in its origins. With all this done correct welding technique must be followed to insure everything stays in alignment. For this project, which will use adapters for the original Ford 17-inch wires, the measurement will be 53-1/2 inches. Tips on making a rear end narrowing jig. Been using this axle for about 3 years on my daily driver.
PINION CENTERING TOOL. The jig has several flanges of different sizes that fit the different Ford 9" rearends and it's just a matter of using the correct size for your application. Both Walden and Eaton offer an intriguing and unique method of getting the job done, so we followed along to see how it was done. With a mig the heat has to balance the faster will just reduce penetration. If the housing tubes warp, it will cause the axles to be out of alignment, which in turn will cause premature bearing failure (among other things). See all 27 photos Currie Enterprises sells these new bearing ends for the 3-inch-diameter housings. The key to using one of these jigs is a spare center section. Part Number: WEH-WM448. We could have used an aftermarket spring, but they're only sold with straight leafs (requiring a different/longer spring mount bracket), and it would still need to be narrowed. Outer Line Up Blocks, Chevy Car, Ford 8. Axle Housing Narrowing and Alignment Tools, 72" Long Narrowing Fixture Alignment Bar. Axle Housing Narrowing and Alignment Tools, Jig Shaft, 72. 69 GTX (clone) - build in progress...... Re: Tips on making a rear end narrowing jig? On our body the wheel housing measurement is 45".
75 mopars and it has worked great. 001 inches on the housing end donuts. See all 27 photos After the old rearend is disassembled and cleaned, Walden Speed Shop's Matt Bryant begins the assembly by cutting off the old bearing ends. The Ford 9" has an offset pinion. Once that's done, it can be re-installed in the chassis and you're on to another part of the project. See all 27 photos With the adapters bolted to the wheels and the wheels sitting where we want them in relation to the fenderwell, a measurement was taken between the two adapter surfaces, indicating the overall width of the new rear end. Mig or Tig dictates alot about the process. The picture below shows the rearend and the amount removed from each end. Axle Housing Narrowing and Alignment Tools, Centering Jigs, Chrysler, Dana, Ford, GM, Each. We will be using a narrowing jig, which is designed to hold the end of the housing in perfect alignment with the center section mounting flanges. Narrowing Kit Component, Strange Floater Line-Up Puck, 1.
That is very close to what I was planning on. You can cut a rear with a reciprocating saw, cutoff wheel, or any of a number of different tools, but keep this in mind: the more accurate and square your cuts, I'd make a straight (scratch) on the top of each axle (longer than what I'm removing) where I want to make my cut the easier it will be to weld things back together ( aligning) when you're done. I will keep looking and if I find the source I will repost. It gives nice square clean cuts every time. Axle Housing Narrowing and Narrowing Tool, Pinion Centering Plate Included, Each. It's a precision tool, and perfectly turned so a late Ford (large) bearing cup can slide down its length. See all 27 photos With the brake assembly bolted up to both sides, measure in 2 inches from the backside of the backing plate, which is where the center of the spring shackle eyelet should be. We used a much larger shaft diameter. Line Up Bar, Pinion Centering Plate Included, Kit.
Actually you have that backwards. This rear is out of a mid 70's Ford F-150 and the tag decodes this one as an open rear with 31 spline axles and 3:25 gears. Where do you get the shafts?