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| Leaf springs revisited https://slantsix.org/forum/viewtopic.php?t=29671 |
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| Author: | NewSlanter [ Mon Jun 23, 2008 8:58 am ] |
| Post subject: | Leaf springs revisited |
I picked up a set of six-leaf springs I had stored at my dad's with the intention of rebuilding the spring pack in my car, but on closer inspection, I'm going to install them as a complete assembly. I have a few questions before I get started; -Can I safely sandblast the springs to remove the surface rust? -What kind of bushings should I get? Urethane, rubber, polygraphite, Uranium....? -What else should I replace while I'm under there? (Bolts and nuts are a no-brainer) -Can I re-use my two-month-old U-bolts? (I've been told they're one-use-only items) While I'm under there, I'm going to replace my rear wheel bearings (8 1/4 rear) What kind of gear oil should I be putting in? It's a highway ratio open rear (2.45:1 Ouch.) Thanks in advance, Nat |
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| Author: | slantzilla [ Mon Jun 23, 2008 4:42 pm ] |
| Post subject: | |
I would think you could blast them as long as you don't stay in one area too long. U-bolts a one use item? I hope not. I've got a set on my '66 that have been on and off a few times. Bushings are a matter of personal choice. The poly bushing will make the ride and handling a little firmer. |
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| Author: | NewSlanter [ Mon Jun 23, 2008 5:18 pm ] |
| Post subject: | |
Thank you sir. What about the gear oil? Any preferred type? Nat |
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| Author: | Joshie225 [ Mon Jun 23, 2008 6:04 pm ] |
| Post subject: | |
I used polyurethane leaf spring bushings to cure a tire rubbing under cornering issue. This was with 225/50R15 R-compound Kumho tires on the race track though. Rubber works fine for most and is quiet. Any good 80W-90 GL-5 gear oil is fine. Synthetic is probably overkill. Is something wrong with the wheel bearings? Now that I think about it I've never replaced wheel bearings that are installed in the housing rather than on the axle. |
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| Author: | NewSlanter [ Mon Jun 23, 2008 6:40 pm ] |
| Post subject: | |
With an 8 1/4 axle, you have to remove the rear cover to get the axles out of the tubes (there's a lock ring that holds them in). Nat |
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| Author: | Joshie225 [ Mon Jun 23, 2008 7:05 pm ] |
| Post subject: | |
I know all about c-clips and having to pull the cross pin. I've just never had occasion to replace the axle bearings in any of the 8 1/4s I've owned which is why I asked what was wrong with your bearings. |
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| Author: | NewSlanter [ Mon Jun 23, 2008 7:52 pm ] |
| Post subject: | |
I'm getting a bit of a growl from the rear end. Sounds like the bad bearing I had in the 7 1/4 I swapped out and I already have the parts. I might wait until I get another set of gears before I open up the rear end. 2.45:1 may be good on the highway, but they're a pig in town. I can't help but wonder if the gains in fuel economy on the highway are being eaten up in the stop and go in the city with such tall gears. Nat |
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