1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

What tranny do I have?

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Old 04-27-05, 12:33 AM
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What tranny do I have?

Ok, I tried to install a new tranny mount in my '83, as it has only a rubber washer between the tranny and crossmember. I bought a tranny mount that is supposed to fit the car, an 83 GS 5 speed. However, the mount would not fit, as the bottom of the transmission has a closer bolt pattern than the mount has. I know the trans has been swapped, due to the shifter being about 1-1.5 inches farther back than it should be. The shifter tower hits the back of the hole in the floor, even though it has been lenghtened a little, via the BFH method.
I have determined that I will likely have to make something fit, which is not a problem. The problem is, I don't know what the tranny is.
Here is a brief description, based on what I could see.
The shifter sits about 1-1.5 inches farther rearward than stock.
The overall length seems to be the same as stock.
The case is not smooth, it has a ribbed case.
It appears to fit the 12a perfectly at the bellhousing.
Any idea as to what tranny I have in this car?
I have a feeling it is a later model, but I have no clue as to what it originally fit.
4K in 5th = 75-80MPH w/ 205/50-15, is this close to the stock ratio? Of course, this is assuming the tach and speedo are somewhat close to accurate.
Old 04-27-05, 12:38 AM
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Just from the description of the shifter placement and smooth case, it sounds like a 2nd gen NA tranny.
Old 04-27-05, 12:47 AM
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Originally Posted by trochoid
Just from the description of the shifter placement and smooth case, it sounds like a 2nd gen NA tranny.
Nope !!!he said the tranny has ribs on it So YOU HAVE A TII Tranny ...........LUCKEE!
Old 04-27-05, 12:47 AM
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Originally Posted by trochoid
Just from the description of the shifter placement and smooth case, it sounds like a 2nd gen NA tranny.
Not a smooth case, has ribs around it.
Old 04-27-05, 12:52 AM
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Originally Posted by Rogue_Wulff
Not a smooth case, has ribs around it.
IS it the forum or mY computer is slooooow?
YOU HAVE A TII Tranny
Old 04-27-05, 12:54 AM
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Originally Posted by Rogue_Wulff
Not a smooth case, has ribs around it.
Sorry, misread that. It is more than likely a TII. I think most of the older ribcase trannys were 4-speeds.

It's the forum that's slow.
Old 04-27-05, 12:55 AM
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Forum seems to be a little slow.
TII Tranny huh? cool. Thanks
Guess I got my $500 worth when I bought the car. Now to just aquire the 87 13BT the was offered to me a few days back..........................
Old 04-27-05, 01:00 AM
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Originally Posted by Rogue_Wulff
Forum seems to be a little slow.
TII Tranny huh? cool. Thanks
Guess I got my $500 worth when I bought the car. Now to just aquire the 87 13BT the was offered to me a few days back..........................
$500





I hate you!
Old 04-27-05, 01:08 AM
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Originally Posted by TurboSE
$500





I hate you!
Thanks
Old 04-27-05, 05:00 PM
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Anyone have a pic (or a link to a pic) of a T2 tranny? I would like to have a visual, for comparison. If this is indeed a T2 tranny, I would likely need to do further investigating, in the event that I ever need to replace the clutch or starter.
From what I have seen, these appear to be different between a stock 1st gen, and the T2.
I tried looking in the archive, but all threads relating to a T2 tranny swap seem to have lost the images that were once attached. This is where I seen the info about the clutch/flywheel/starter differences.
Thanks.
Old 04-28-05, 12:48 PM
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Bump.
Anyone got pics, so I can tell which tranny this is?
Also, would it be possible for me to drill a couple new holes on the mounting location, so I can use the stock 1st gen mount? That is what I am currently contemplating.
While I may have gotten a killer deal when I purchased this car, it has a downside. I purchased it at an impound auction, which makes contacting any former owners quite difficult. Also makes me have to become a "detective" of sorts, to determine what has previously been done to the car.
Old 05-01-05, 12:28 AM
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The older 5 speeds looked alot like the TII tranny they both have ribbed cases and I know the early ones had a bolt on aluminum pan on them and I pretty sure the TII had the same ribbed cast aluminum pan as the early units. I had a 1974 RX3 with a 1976 RX3SP 5 speed in it that I got the tranny as a basket case.
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