Kaitsu
Well-Known Member
Well, theyre reconditioned instead of reman but at least the connectors are original.
How much would you guys think is a mono AM/FM radio worth if it has been completely gone through and is in great shape? I got the first radio I bought from the shop yesterday and I don´t need it anymore since I got the C-cassette radio on my own car? A friend told me they are rare to find in this part of the world since the dealer usually removed the radio and sold the cars WO any kind of OEM radios. I told him I could swap em for the torsion bars he claims to be from a police Aspen, but I doubt it as no police were using American cars here at any time: what is the difference between the stock and HD/police torsion bars?
I browsed for info about 727 trannies in F-bodies and found out they were actually available with 727.
Sorry to barge in on this thread, but I wanted to ask about the A518. The A518 is basically a TF727 with an overdrive and a lock-up torque convertor, correct? Being TF727 based, it has the 2.45 first gear, as do all models of the TF727. The way to get around that is to go with a lower rear end gear, isn't it? As in if the car originally had, lets say, a 2.94 rear end gear, go to a 3.23 or a 3.55 rear end gear. With the overdrive gear in the A518, those rear end ratios are liveable on the highway, are they not? A 3.55 becomes a 2.63 in overdrive, and 3.23 becomes a 2.39 in overdrive, both considerably better than the 2.94 in 3rd on a TF999/998. Low gear overall works out to be 7.91 with the 3.23, and 8.69 with the 3.55 using an A518. The TF999/998 with a 2.94 rear end gear ends up with an overall low gear of 8.05-8.06. You should be able to pick up both low end acceleration and a lower rpm level with the A518 with the 3.55 rear end and very marginally (perhaps even un-noticeably) less low end performance with the 3.23/A518 than the A999/A998 and a 2.94 rear end gear. There will still be more losses and weight with the A518, but there isn't much you can do about that, unless you want to look at some serious (read: expensive) transmission work. Of course, it will still require a shortened drive shaft, and working out the linkages -Kostas
12345A518 = A727 + an overdrive, nothing more. Not only is there more parasitic drag than the A9xx transmission series, but they don't have the low first gear of the A99x used in most of the M/J-body cars so they could get away with such pathetically-high gear ratios and still be livable. The A998/999 has a low ratio of 2.74, whereas all A904/727 transmissions have a low of only 2.45. So, if you replace an A999 with an A727 and have 2.26:1 rear end, it's like you just put 1.99:1 axle gears in the car as far as first gear is concerned. It'll be the same performance in 2nd as always, but it'll take longer to get there while the engine tries to climb over that ratio. On the flip side of this, if you replace an A904/A727 with the lower-gearset A99x, you suddenly just picked up a bunch of first gear acceleration. In a car that has 2.94 axle gears it's like installing 3.30:1 axle gears--but again the difference is only in first; your second- and third-gear acceleration would not change. To keep the gearing advantage, you have to stick with the A500, which is unfortunate because as far as I know, it's only available as a lockup transmission and Chrysler lockup converters are, well, not particularly reliable with any kind of power.
I'm sure you guys both realize all this, but I'm posting it as general information so that folks unfamiliar with this arrangement (or the importance of gearing overall) might learn something. It never ceases to amaze me how guys will drop in a $4,000 crate motor and complain that the car suddenly isn't running 12s, only to be told they never touched the rear axle gears. Fuel economy is a beautiful thing, but I think a lot of board members would be shocked at how quickly their car would accelerate with nothing more than a swap to even a mild ratio like a 3.23 or 3.55 out back, especially if they've got the low-first transmission.