The Stovebolt Site Forums The Shop Area Driveline 1946 gas shock conversion clearance

Installing new leaf springs and the leaf spring mount for the gas shock conversion on a '46 1/2 ton. Using a set of roll a round rims and tires, 235/75 R15. no clearance between the end of the shock bolt and the tire/rim. Anyone who has done the conversion have the same issue? I see two options. 1 change the tire and rim package, go to a 205 or 215 tire which will use a 5-6.5 inch rim along with a rim with 4" backspace, as opposed to the 9 inch rim 5.25 backspace on the 235. 2 install the shock and see if there is any length of bolt that can be trimmed off.

https://www.chevsofthe40s.com/detai...version_Kit_With_Gas_Shocks_4_12Ton.html

What tire and rim are you running with the shock conversion? Did you find that you need to use a longer wheel stud with modern rims?

You are going to have to post a picture of the issue, the shock mount should be close to the spindle, no where near the rim, and the top mount should be right near the frame rail. My '37 has tube shocks and are no where near the rims or tires, the '37 frame is very similar to the '46.

You must be referring to the rear lower shock mount. It sticks out toward the rim. Of course there's no issue with the stock 4-1/2" wide rims. The 9" rim you're using is quite a bit wider than stock. Is there any excess thread sticking out of the nut that you could trim off? If not, you'll need to switch to narrower rims, or different backspacing.

I didn't think about the rear shocks, mine mount on the inside of the frame rails to a cross bar I welded to the frames. Anyway to make the work on the inside of the frames?

It might be possible to turn the rear lower shock mounts inboard, and then mount the upper mounts inboard of the frame as well. But you'd have to weld a plate on the inside of the frame channel to bolt the upper mounts to. Or maybe dig up some 3/4 ton rear upper shock mount brackets which mount to the inside of the frame channel, and may work. Lower shock mounts on 3/4 ton trucks welded to the rear axle tube rather than being attached with the u-bolts. It would take some fiddling to get shocks mounted inboard of the frame.