Productive Wednesday

Dr.Jass

Pastor of Muppets
Picked up a few more "must have" parts the other day, and was able to not spend any money doing it. :dance:

A friend of mine with a '71 Challenger was looking for some parts of which I had spares, including some door panels, rear interior panels (both sets were green), and a dual-exhaust rear valance. I also gave him my fiberglass reproduction '70 Go-Wing with under-lid mounting brackets since I had no plans to use them, and he took my Rallye dash heater-control bezel off my hands since I have AC and had to get the right one for that (holy expensive, Batdog!).

In trade, I got a complete '71 close-ratio 23-spline 4-speed transmission from a B-body, an aluminum LA bellhousing that matches the transmission, and a '72 Challenger rear axle complete except for brake hardware & drums with a 2.76:1 open 489 case and 7290 yoke.

The stuff I got was looking pretty sad from sitting outside for many years, and both the transmission and axle appeared to be stuck solid from rust. Well, I couldn't contain myself and got to the disassembly of both post-haste. The transmission's bearing retainer was rusted to the input shaft, but plenty of PB Blaster and some light tapping got it removed quickly, after which the rest of the transmission turned over like butter. I haven't had the side cover off yet, but I don't expect to find anything ugly--the rust stopped exactly at the seal in the bearing retainer, and all looks good behind that. The rear axle-shaft nuts came off more easily than expected with just a 9/16" wrench and no major force, but it took a little beating to remove them. It was obvious they'd never been out of the housing. One shaft looks like it's been lying in a swamp for 20 years, possibly because it has been, but the other is perfectly preserved. I have no idea why, since the axle was sitting level though it was sunk about 5" into the ground. The backing plates look very nice, and turned out to be for 11" drums which is a bonus. I popped the center section out and found the gearset is actually still in pretty good shape but the diff is pretty much done--no big deal since I have no use for an open diff anyhow.

The irony of it is that he got the transmission and bellhousing from me, just prior to my moving to Atlanta. :D I sold him the engine, the transmission, and the bell, along with the 400-4V out of my '77 Cordoba (and later the Black Bitch) and some other stuff for a whopping $150 back in '96--Dad had told me, "get that stuff out of my garage before you move," and I think Wayne bought it two nights before I hit the road. He still has the 400 lying there, still on the same pallet and untouched since 1996... it's looking pretty sad too.

The 4-speed and bell will be going into the Challenger after I inspect them closely and determine whether the transmission needs rebuilding. The axle will go into the Imperial after I swap in a 2.94:1 with an Eaton True-Trac and install my new springs and rear shock plates. Those were two big items I really wanted to avoid paying dearly to obtain, so this worked out very well. Wayne even bought me lunch, and I think he still feels as if he owes me something. I'm pretty happy with what I got, though, so if he's good, I'm good.
 
Sounds like a great day Doc...Congrats on the good barter.

Once you get the 833 apart I would toss in a small parts kit, with new bearings and seals and call it done. They rarely need much more then that.
 
I have pictures I'll post in the near future of the disassembly process. That was beyond comparison the nastiest 8.75" I've ever taken apart. Rust like I've never seen before. I hadn't popped the pig apart yet when I posted, and I definitely spoke too soon about the gears. No big loss since they were 2.76:1, but suffice to say, one should not be able to hold up a pinion gear by the crush sleeve. No joke--it was rusted that solid. I've never had to beat on a pinion like that to get it out, either. The front bearing was rusted solid, both to the pinion shaft over which it should slide easily and to itself. The rollers, cage and inner race are quite literally one piece. The rear bearing's no better and should be a joy to press off so I can recover the depth shim. :doh:
 
Oops...Guess you spoke too soon. ;) Start soaking with the PB Blaster, and cycling the heat....should help in the bearing removal.
 
In case you didn't know, the pig in the challenger is a 2.94 one legger. I don't remember it giving me any trouble. The weak ass 440 that was in the car certainly didn't give it any trouble.
 
I got the pig totally disassembled, Cow. The only thing I didn't take apart was the rear pinion bearing, which requires a press anyhow (it'll have to come to work with me for that). Everything I actually need looks like it can be used, so I'm pretty happy with the whole deal.

v8440, I remember you telling me it was a 2-series peg-leg. I wondered to myself if that wasn't the problem with the 440--it takes a long time to climb on top of even a 3.23 unless you're spinning the tires. :D The Black Bitch would've been an eternal giggle fit with 3.91s or 4.10s. :dance:
 
No, that wasn't the problem. The car had 4.10's in it when I got it. I decided that if it was gonna be a turd until I got around to doing something about the motor it might as well be highway cruisable. The car dynoed 260 hp at the tires, with the 2.94's in it. It would have been a little less with the 4.10's. The crux of the problem was this: Stock replacement pistons generating about 8:1 compression, comp XE 274 hydraulic cam, performer rpm intake, stock hipo manifolds, repro stock 1970 challenger exhaust system (which you now have). Good parts but not with each other.

It sounded mean as hell at idle, as long as you ignored the lack of "compression crackle" in the tone. Low end torque was killed by the cam and low compression, and high end power was killed by the exhaust system. It made impressive power nowhere while drinking plenty of gas to not do it.
 
The car dynoed 260 hp at the tires, with the 2.94's in it. It would have been a little less with the 4.10's. The crux of the problem was this: Stock replacement pistons generating about 8:1 compression, comp XE 274 hydraulic cam, performer rpm intake, stock hipo manifolds, repro stock 1970 challenger exhaust system (which you now have). Good parts but not with each other.

It sounded mean as hell at idle, as long as you ignored the lack of "compression crackle" in the tone. Low end torque was killed by the cam and low compression, and high end power was killed by the exhaust system. It made impressive power nowhere while drinking plenty of gas to not do it.
It should be no mystery as to why I left that engine there rather than taking it with the car. :D
 
Heh... I totally missed that last post, Stretch. But yes, I finally sorted through my pictures.

Ever had a rear axle so rusty you could hold the pinion gear up by just the crush sleeve? :doh: :D

100_0068.jpg


Other highlights of my 44th birthday...

100_0057.jpg

100_0058.jpg

100_0059.jpg

100_0060.jpg

100_0061.jpg


Yes, both of these axle shafts came out of the same housing. :wtf:

100_0063.jpg
 
Dude, that's rust. :doh:

The case and its attendent small bits are fine, as are the axle shafts and main housing. The brake backing plates were in astonishingly-good condition, considering they were half-buried in the ground for God knows how long. I neglected to mention it in the original post, but this axle was partially under the pallet that contained the 400 that I sold him back in '96. So the axle had been in the ground for over 18 years when we dug it out.

The excellent (and 11") backing plates:

100_0067.jpg
 

SiteLock

SiteLock
Back
Top