Mopar92
Well-Known Member
Been on the lookout for an A833OD. This has a "dual mount" shifter. The pics I got aren't super clear. Looking for a 4 speed to fit my 73 Duster small block. Any idea what this is?
Looks like a 71-74 B/E-Body shifter location trans with a homemade adapter bracket to make the a-body shifter work....possibly from a truck? Check out the linky below....the more pictures and part numbers you post will helpWhat is this? Was told it was out of an F body. Looking for an A body to fit in my 73 Duster and don't want to get stuck with some truck or van BS. It is a small block bellhousing and the case is aluminum. Can't tell if that's an iron tailshaft in the pic or not. Thanks for the help guys.
View attachment 1714994357
Truck/van overdrive. I know it can be done, but save yourself the trouble and find an A/F version of the overdrive if that is what you want. Especially since you don't own it yet...Been on the lookout for an A833OD. This has a "dual mount" shifter. The pics I got aren't super clear. Looking for a 4 speed to fit my 73 Duster small block. Any idea what this is?
View attachment 1714994356
Truck/van overdrive. I know it can be done, but save yourself the trouble and find an A/F version of the overdrive if that is what you want. Especially since you don't own it yet...
In that caseThe fabrication for mounting the shifter is not a big deal to me. I'm doing a resto mod so staying original is not important.
Truck/van overdrive. I know it can be done, but save yourself the trouble and find an A/F version of the overdrive if that is what you want. Especially since you don't own it yet...
In that case
I highly recommend the long-tail, because in an A-body with bucket seats, you can move the shifter to wherever you want it to be.
I put it about 7inches back and up high enough to install the upper shifter bolt from the cabin. New rods are easy to fabricate.
I can't recommend the od box for a high-reving, low-compression engine tho, cuz the ratios are quite far apart, specifically the 1-2.
And I guarantee you that when you forget you are shifting a 3+1 you will zing all the teeth off the M/S od gear in an instant. That gear was designed for a 150hp 318. With a torquey 360 it don't take much to shred the teeth off it. I have two or three od boxes in the shed to prove it. Count your shifts! First thru third seem to put up with 400hp ok.
But IMO, the Command box is a better solution. You get the 3.09 low, and the rest is like the standard box. So you can run 3.23s and still have real good take-off, with a reasonable cruise-rpm. With 3.23s this works out to a starter gear of 9.98 ( same as 3.73s with a standard 2.66 low), and a cruise of 65=2600 with 27" tires. The penalty is that second gear is 1.92x3.23=6.20, and 32 mph is 2460 rpm, so your engine is gonna need some grunt to pull that...... unless you downshift.
I run the Commando with 3.55s, which is awesome, except for 65=2870 with 27s..... so I got me a GVod to cure that. Now 65=2240
But IMO, the Command box is a better solution. You get the 3.09 low, and the rest is like the standard box. So you can run 3.23s
you got itKinda sounds like your shifter may have been located behind the rear mount with lengthened rods?
I have put over 400hp into the first three gears, with a CenterForce II, and 295/50-15s tp 325/50 15 BFG- DRs, and powershifting it, and gearsplitting it; All without hurting it even a bit. So I'm guessing you can do same. It is only the M/S od gear that is fragile. When it blows up; the rpm hits the rev limiter, the teeth go everywhere, and shred the cluster gear. On one occasion, some of the teeth went into the input gear, and shredded that as well. On another occasion, I was able to drive a further 30 miles without any other damage.After a third occasion, I knew there was something wrong with me, because I seemed to have a hard time remembering NOT to speedshift into overdrive,lol. So I pulled the whole works outta there, and installed the Commando Combo, which turned out to be the best thing for my combo. It's been in there now since 2005ish.Honestly there is nothing wrong with the OD boxes, even the long tail truck and van variants, they are the same length as a 727 and fit an a body just fine with a shifter adapter plate. Dont get caught up in the weak aluminum box overdrive ratios bs. They are plenty strong, offer a nice low first for snappy launches and a slight overdrive in fourth which is awesome on the highway.
Edit; Commando box; the 3.09-1.92-1.40-1.00 box as found behind the 273-4bbl Commando engines. My 360HO streeter has not been able to damage it in the least yet, in something like 60,000 miles or more, with thousands of full-power 7000 rpm powershifts.OK, WHUT?? ............is a "command box?"
Only 3X low gear 4 speeds I know of (non OD) were some slants and 273?
By the way I don't think the 3X low gear boxes are particularly strong, either