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  1. J

    Rear end swap/install

    mancini, year one, espo you'll get the right parts amazon or ebay, cheaper but unknown quality and fit local rear-end or spring shop, probably cheap, likely good quality, but may need to cut to fit.
  2. J

    Rear end swap/install

    what, you don't salt the garage floor, burn sage and say the incantation printed in the FSM to ward off broken bolts and stuck fasteners? i thought everybody did that... (technically it's four bolts, i pull it at the body mount. ain't no way i'm pulling apart shackles unless i absolutely...
  3. J

    Rear end swap/install

    i always found it easier to let the springs down and just ease it right on out the back rather than futz around with trying to jump it over the springs and lever it in/out from the side coming and going. different strokes for different folks and all that.
  4. J

    Rear end swap/install

    #8- if you aren't going to reuse your cables and the replacement rear is already set up, then you can just pull the cables up line at the stirrup leaving everything intact. #10- by nature the the rear is nose heavy and going to want to rotate down, so know that going into it. after you zip...
  5. J

    Rear end swap/install

    lolz on the 40 min. but you can totally do it by yourself. spray down all your fasteners with whatever weapon of choice on the slick stuff a few days in advance. this includes the brake line fittings and e-brake stuff as well as the u-joint fasteners. are you reusing your brakes or going with...
  6. J

    Short Shaft Slip Yoke 727's in Old Airport Tugs?

    tom, i don't know if this helps in any way, but i stumbled on this while looking for something else. https://offerup.com/item/detail/4651a0b2-ca04-37cc-b158-7d496da3a471?q=727+transmission
  7. J

    Short Shaft Slip Yoke 727's in Old Airport Tugs?

    in my travels i've seen a handful out in the wild. eons ago i bought a 74 W200 with a 440 that had a shorty w/ a slip yoke and a divorced NP205. the 440 and NP205 were absolutely how it left the factory, but i can't say with 100% certainty that the shorty 727 was there from the start, although...
  8. J

    Short Shaft Slip Yoke 727's in Old Airport Tugs?

    yeah a lot of them are flange mounts. the slip yoke are out there, but seem to be quite a bit less common. if you're in the market, there's one on offer up out here.
  9. J

    Short Shaft Slip Yoke 727's in Old Airport Tugs?

    i've seen short tail 727's in four wheel drive applications that have divorce mounted transfer cases. also in some RV's like SC said, anything is possible on them tugs!
  10. J

    KA-thunk

    the stock trans should shift smoother than the legs on the checkstand girl down at the piggly wiggly. me thinks you needs a service. or maybe just some fluid.
  11. J

    2.76 vs 2.94 gearing

    at the time, how many miles were on that 10 year old rear end? and what size were the tires?
  12. J

    2.76 vs 2.94 gearing

    the 7.25 gets a bum rap for a few reasons. it was a lightweight axle to begin with, and people tend to forget these cars were built as basic disposable transportation back then. ma mopar didn't intend for these axles to last 40, 50, 60 years. another part of it is that as people upgraded they...
  13. J

    2.76 vs 2.94 gearing

    exactly! you can buy at least 10 7.25's for the price of a 8.75 and then we get to have the discussion about the difference in power between a 2.45 and a 2.76 the next time. i see this as a win-win
  14. J

    2.76 vs 2.94 gearing

    something about forests and trees... with 273 2bbl backed by a 904 with 7.25 in a dart as a daily grocery getter, the answer is half a gnats ***. or practically nothing. swap it and roll till it pukes its guts out, rinse and repeat.
  15. J

    8 3/4 spitting gear oil out of breather vent

    or as i like to say: the tale of how to turn an afternoon project into a two day love affair that costs several hundred dollars and leaves the stink of gear oil around for weeks.
  16. J

    8 3/4 spitting gear oil out of breather vent

    stranger things have happened... i once installed a rear for a guy. he'd just dropped it off, said it was out of his other car and had lube in it, ready to go. what he failed to mention was that he "topped it up" while it was in the back of his pickup. the outcome was about what you would...
  17. J

    8 3/4 spitting gear oil out of breather vent

    is it possible that you overfilled it?
  18. J

    7 1/4 to 8 3/4 Newb Questions

    it's all part of the process amigo. it a collective effort and, at times, knowing what is wrong can be just as valuable as knowing what it right. the reason i say to call the shop doing the work and verify with them how they wanted it measured is because i got jammed up on that deal. shop i...
  19. J

    7 1/4 to 8 3/4 Newb Questions

    what is this, amateur hour? my tool kit starts with 100mph tape and progresses to stainless steel zip ties. the bailing wire and linesman pliers live in the glovebox.
  20. J

    7 1/4 to 8 3/4 Newb Questions

    100% we've all been young and dumb and clueless. believe it or not, even i paid the fine and did my time for crimes against automotive decency. but these days, there's no excuse. the information is out there, the resources exist, and yet the collective ignorance still perseveres. it's only...
  21. J

    7 1/4 to 8 3/4 Newb Questions

    that's an excellent attitude to have. trust but verify. just because somebody else got away with their bobo *** fix don't mean it's gonna work for you. and more importantly, that big old spinny bit is right there up under you, don't want that mess comin' apart and taking out big jim and the...
  22. J

    7 1/4 to 8 3/4 Newb Questions

    here's a thread for quick reference: https://www.forabodiesonly.com/mopar/threads/add-your-abody-driveshaft-length-for-quick-reference.139090/ the correct and bestest way to do it is to measure with the new rear end installed and talk to the driveline shop doing the work and ask them how they...
  23. J

    1968 Dart sudden rear end noise.

    thanks for the heads up. cleared now.
  24. J

    Advice on potential gear swap

    oh, btw i hadn't caught that you're running a 28" tall tire. with a 2.94~3.23 gear that maths out to 75~85mph speed at 3K newer converters are built for this type of driving, but i still would keep it in mind in that heat is the enemy of transmissions and all that. and operating something...
  25. J

    Advice on potential gear swap

    i think the best compromise gear is always 3.23, but i can certainly see the appeal of a 2.94 and i don't think i would personally go to a 2.76 unless i was specifically building a car for long haul road tripping. given your cam specs, with those long legs it'll change the overall behavior of...
  26. J

    8 3/4 rear seals

    there's a seal in the axle tube, that one is before the bearing and keeps the lube in the housing. there is a seal on the tube flange it's metal with a coating (sometimes) then there is a seal on the axle retainer, that one keeps the grease in the bearing area. then there is the foam seal...
  27. J

    1968 Dart sudden rear end noise.

    they're actually about 3" wider WMS, but you are correct in that they're only 1" wider on the perches. which some people fake it by just pushing in the springs. but that's some back yard hackery bobo ****. so you need really deep backspaced rims to run them on our cars. not an ideal...
  28. J

    1968 Dart sudden rear end noise.

    the spider gears are more likely than the pin walking. but yes, 7.25's fail in all kinds of spectacular ways
  29. J

    1968 Dart sudden rear end noise.

    to answer your questions on drop in, no muss, no fuss rear ends: any a-body 7.25 from 65~76 will drop in, with the caveat that rear ends from 73~75 darts *must* be from drum brake cars, because they will be the correct bolt pattern. a-body 8.25 rear ends from 73+ are big bolt pattern, they...
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