Official Chevrolet Beretta Owners Forums
https://www.beretta.net/forum/
i have a stick tranny in the garage waiting for time, money, and another daily driver in a few years, then more time to hook it up, and more money for a good clutch and other partsMy 89 5 speed gtu gets any where from 28 to 31 I never seen that from my 88 gtu auto, I find the car way fun to drive compared to the slush box 3t40. It will be fast if I would get my rebuilt 3.1 turbo intercooled in it though, also I wasn't trying to argue I was just seeing if anyone was interested in a good trans for free throw down freight and its yours been sitting in a heated garage for 4 years now and don't have a use for it, but its been getting in the way just would hate to scrap a good trans .02berettaboi wrote:i hear ya on the 'boo to auto' deal, but i'm happy with the decent mileage with the auto (due to keeping it under 2500rpms most of the time, where as stick i would be going through tires as well as gas a lot more!
scd88ga wrote:^^^ This is correct info! The 4T60-HD was ONLY available for the 89-90 TGP!ronaconda wrote:I really wouldn't worry about the trans unless it has high miles and you plan on beating the crap out of it. Even though the TGP trans is considered a "heavy duty" trans, that particular trans version was only offered in the TGP.
^^^ This is incorrect info... I thought you were a Pro Tech for GM in the early 90's!? You should really know things like this...!SuzukiGhostRider wrote: Also the 4t60 was available in MORE than the GTP. It was NOT specially built for just that model. Also naive and bad intel.
The difference between me and you is I don't have to TRY! I KNOW what parts came in what cars, or did you already forget what I do for a living!? I did not say 4t60, I did not say 4t60E, I said 4t60-HD, which IS the model specifically built for JUST that model! I know the history and various changes within the 4t60 and what variation came in what year and what model! There is NO NEED to blab on and on about whatever pile is sitting in your driveway, I really do not care!SuzukiGhostRider wrote: Yeah, right. No, I AM correct. I have a 4t60 sitting in the yard right NOW in an '94 Olds Achieva S , so yeah. Nice try though.
LoL. I realize they're trying to make the trans "special" because GM slapped an HD label on it with a few insignificant "upgrades" if you can call them that.
I'm trying to make them BOTH understand that 4t60's were around as far back as 1984 and came in cars until 1996. But you know, you can lead a horse to water.......
You can find 4t60's in Cutlass Cierra's, Achieva's, and a variety of front wheel drive cars, but hey, I must be wrong because ... Oh wait, I'm not wrong.
Turbo-Hydramatic 440-T4
A breakdown of THM440T4 is: Turbo HydraMatic Model 440 - Transversely Mounted - 4 Speed Fully Automatic transmission
A 4-speed version of the 125 was created for the 1985–1986 GM C platform (FWD)/GM H platform (FWD) cars, the Turbo-Hydramatic 440-T4. Many parts were identical to the 125, though it was generally stronger and included an overdrive fourth gear. This transmission was first used in GM's 1985 Buick Park Avenue, Oldsmobile 98, and Cadillac Deville. In 1986, after switching to FWD, the Buick LeSabre, Oldsmobile Delta 88, and later, the Pontiac Bonneville also used this transmission. A special strengthened F-7 version was also used for the 1987–1992 Cadillac Allanté.
One unique feature of this transmission is its use of both a modulator valve and a throttle valve (TV) cable. Most transmissions either use one or the other to control shift points and shift smoothness. On the Turbo 440-T4, the TV cable exclusively controls the shift points, while the modulator valve controls the shift feel. This feature makes it very easy for a home, "shadetree" mechanic to adjust the transmission shift points with minimum effect on the shift feel.
The 440-T4 was originally slated to be used with downsized C body cars for 1984, however, issues with failures led to introduction being delayed until 1984 for the 1985 model year.
The 440-T4 was later renamed the 4T60.
A heavy-duty version of the 4T60 was used for the 1989-1990 Pontiac Turbo Grand Prix.
The electronically-controlled 4T60-E was introduced in 1991. It would become the basis of the GM 4T65 transmission, still used today.
A heavy-duty version of the 4T60-E was used only in 1996 L67 Equipped vehicles.
Applications:
4T60
1988-1994 W platform
1985-1993 H/C platform
1985-1993 A platform
1988-1990 Buick Riviera/Reatta
1985-1990 Cadillac models
4T60-HD
1989-1990 Turbo Grand Prix
4T60-E
1997-1999 Buick Century
1994-1996 A platform
1991-1999 W platform (some models)
1991-1993 Cadillac models
1991-1997 H/C platform
1990-1992 Oldsmobile Toronado
1990-1993 Buick Reatta
1990-1993 and 1996 Buick Riviera
1994-1996 Corsica/Beretta
1992-1996 U platform (with L27 and LA1 engines)
4T60-E HD (When Equipped with L67 Engine)
1996 Buick Park Avenue
1996 Oldsmobile 88
1996 Pontiac Bonneville
1996 Buick Riviera
F-7
1987–1992 Cadillac Allanté
I thought you were talking about the 4t60E because you kept on babbling about the 94 Achieva in your driveway! Is that not a 4t60E in that car!? And to my knowledge they only made 4t60's till 94, not 96...ronaconda wrote:The TGP trans is considered a "heavy duty" trans, that particular trans version was only offered in the TGP.