Coolvibes
Well-Known Member
Married? Have kids? How about a girlfriend? What happens in the middle is often times the most fun of the entire endeavor, even if the end result is the same. LOL. Couldn't help but go there.
Is this a bad idea?
- Thread starter Rogerdodger
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Married? Have kids? How about a girlfriend? What happens in the middle is often times the most fun of the entire endeavor, even if the end result is the same. LOL. Couldn't help but go there.
Coolvibes
Well-Known Member
Seriously though, I am changing from 3 speed manual to 4 speed manual because I have all the parts. If I don't like the combo, then I will install the OD, which I don't have all the parts for.
Additional things I will need to go from non-OD to OD are:
- driveshaft (B&T flange to spline)
- shifter rods
- work by Brewers so non-OD BH can fit on OD transmission
- prayer and a patient wife
Dave_J
Well-Known Member
I use this tire calulator to figure size changes. It assumes total lockup so an autos torqueconveter slip is a guess.
275/60-R15 vs 265/75-R15 Tire Comparison - Tire Size Calculator | Tacoma World
275/60-R15 vs 265/75-R15 Tire Comparison - Tire Size Calculator | Tacoma World
Curvedglass
Member
One thing that has been overlooked in this post so far. The last time I checked, the 833 and 833OD bellhousings are NOT the same. The input shaft bearing retainer on the 833 is smaller in dia than the 833OD. So if you try to put the 833OD in place of the 833 it physically won't fit the bellhousing. If you have an 833OD bellhousing an 833 will go in the hole, but not register tightly to the bellhousing; it will only locate off the 4 mounting bolts. Once upon a time I remember that someone marketed a spacer ring to put on an 833 to snugly fit the 833OD bellhousing for people wanting to put an 833 into an 833OD equipped vehicle. I don't have the manuals in front of me but I don't think the 833OD bearing retainer being turned down to fit the 833 bellhousing was a recommended option. Maybe Passon had the spacer ring? I guess you could have the hole in an 833 bellhousing enlarged, but since the bellhousing has to come off I would just keep it stock and find an 833OD bellhousing out of an Aspen or Volare to replace it. Then if you want to go back to the 833 you would still have the correct bellhousing. 833OD's are aluminum cased, and since in OD you are actually running in third through the countershaft cluster and not straight through you may want to verify that the case isn't worn where the cluster shaft mounts. Hope I got the terminology correct and that this may help someone avoid a WTF moment while lying on their back trying to wrestle an 833OD into place.
Found an aluminum cased 833OD. Using Chinese calipers (probably more accurate than I can measure ham-fistedly at poor posture position), with a rusty bearing retainer I came up with a diameter in the range of 5.13-5.15". Curious how close I came to what it's supposed to measure. I don't have an 833 to compare it to.
CoolVibes and RodgerDodger, I would think the Aspen / Volare bellhousing would fit your Dart, guessing you have a 10 1/2" clutch now. I don't know what the Brewers mod will cost, but once the hole is enlarged you can't go back unless the spacer ring is still available somewhere. It might be cheaper to change the bellhousing, too; I don't know what Brewers charges for this mod.
With the 273 guessing the small clutch bellhousing. Unless I'm confused with two folks talking the same mod to two different cars. I thought going from the small clutch to the bigger clutch was worth it, had to trim one finger off the bellhousing. I didn't have an exotic exhaust system, I guess that may pose an issue if both want to occupy the same space in an early A.
I hope this helps, CG.........................
Found an aluminum cased 833OD. Using Chinese calipers (probably more accurate than I can measure ham-fistedly at poor posture position), with a rusty bearing retainer I came up with a diameter in the range of 5.13-5.15". Curious how close I came to what it's supposed to measure. I don't have an 833 to compare it to.
CoolVibes and RodgerDodger, I would think the Aspen / Volare bellhousing would fit your Dart, guessing you have a 10 1/2" clutch now. I don't know what the Brewers mod will cost, but once the hole is enlarged you can't go back unless the spacer ring is still available somewhere. It might be cheaper to change the bellhousing, too; I don't know what Brewers charges for this mod.
With the 273 guessing the small clutch bellhousing. Unless I'm confused with two folks talking the same mod to two different cars. I thought going from the small clutch to the bigger clutch was worth it, had to trim one finger off the bellhousing. I didn't have an exotic exhaust system, I guess that may pose an issue if both want to occupy the same space in an early A.
I hope this helps, CG.........................
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Ahoey
Well-Known Member
What rpm are you running at that speed. I have 3.21’s in my dart and a 25.5” tall radial tire and it pulls 3 to 3100 at 100 kms (62.5 mph)
arvzj
Member
I ran a 833OD with a 8 1/4" 3.21 rear end, 195/70/14 (24.8") tires and a fairly stock 81 Aspen 225 Super Six on my '65 V200 wagon (originally 318/auto). Put '76 wiring harness, front end parts and disc brakes and dual circuit master cylinder, sway bars, extra spring leaf, 340 torsion bars, Tom Condren alignment specs, etc. Drove this combination ~340K mostly heavily loaded miles (work car driving around Oregon, Washington, Idaho and Montana with tools and parts) after the rebuild and loved every mile except getting stuck in Portland traffic from time to time. That car rusted away or it would still be on the road! As it is, I swapped all the good stuff over to a '64 V200 wagon with no rust and rebuilt the engine. That 0.7 overdrive means you can let the engine relax and save gas; I cannot even imagine this great car without the overdrive gear. The lower 1st is handy, too. I consistently got 25 mpg with this car, correcting for everything. Fun facts: The overdrive means the top bearing is working overtime. I always overfill a couple extra ounces of ATF in it. I had a stock '76 electronic ignition and my brother gave me an MSD 6A and coil which I put on; it was like adding a cylinder to the engine and mpg went up. I met a retired Chrysler engineer who said he helped work on the cam for the 833OD; "25 MPG, right?" he said. I used Ethos in engine oil and gas many of these miles, and always ran some kind of top cylinder lube in the gas. Synthetic lubes. Michelins run at 40-44 psi to account for the heavy loads; tire pressure should be proportional to the load. AM Radio Eternal Life: The factory AM radio has a killer tuner section that pulled in stations my tape decks couldn't even find. The main output transistor is ballasted by the radio light bulb; when the bulb burns out, the output transistor burns up and the radio dies. You can take the radio apart and find the transistor that let the smoke out and replace it with a super robust modern Si transistor (TO-220 case, I think), replace the bulb, and the radio is better than new. I replaced the original dash speaker at one point and got the dead bugs out and the fidelity improved.
Rogerdodger
Active Member
I'm running about 2800 at 65. With my tires at 25.2" I would think your RPM should be lower than mine with your larger tires???
Coolvibes
Well-Known Member
Not sure if I did the correct thing in selecting quote, but I guess I'll need to learn a few more things about this site. LOL.
I think you are correct in saying that the 833 Bell Housing will not fit the 833OD gearbox; the input bearing hole on the 833 BH is too small for the 833OD. The plan was to have Brewers rebuild my 833OD, and put the internals into a 833 case with small IP, so I could use the 833 BH on both.
I have two 833od, one with iron and one with aluminum case (long tailshaft from a van). Wonder how much weight would be saved by an all aluminum 833OD?
Land in SoFlo is very expensive, and most of us here are migrants living the American dream, so a new car is mandatory. Because of this, it's lucrative to sell land; the number of junk yards are shrinking, and the ones that remain have modern cars. Finding a Volare or Aspen here is like finding hen's teeth.
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