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| | | | Joined: May 2008 Posts: 49 Wrench Fetcher | | Wrench Fetcher Joined: May 2008 Posts: 49 | The transmission in my 55 2nd series has been changed to a later model. The trans has the following numbers cast into the side:
GM23
8825647
F82
The following number is stamped on a machined spot above these on the right side of the transmission:
12w419838
Can anyone tell me from these numbers what transmission this is?
Since it is not the original transmission, is it the same or a different length as the stock? Length measures 21.5 inches from front to back. How will this effect a change to a T5? Will the T5 still be longer than 21.5? I am trying to figure out if I will need a shorter driveshaft.
Thanks,
Hugh
| | | | | Joined: Oct 2005 Posts: 1,317 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 1,317 | If you're bolting an S10 T5 to a 235 in an AD the short wheelbase S10 driveshaft is almost a perfect fit. Not knowing the type of transmission you're currently running in your TF, the shortbox S10 driveshaft would have the correct yoke and u-joint to bolt to a Chevy differential if the T5 was from an S10. You may or may not have to shorten the driveshaft depending on the specific differential you are running.
A little more specific info about your engine might be helpful for the TF folks to help you with your question.
Dave | | | | | Joined: May 2008 Posts: 49 Wrench Fetcher | | Wrench Fetcher Joined: May 2008 Posts: 49 | Sorry for the lack of information. Truck is a 55 2nd Series. PO said "350 engine and transmission is out of a '69 Chevelle". Engine numbers check out to be a '72. I was trying to find out what year the trans actually was. Engine and trans are mounted to stock bellhousing with crossmember mounts. Rear end appears to be stock. 7 bolts on trans side plate means it is a Saginaw? Notice from the photo that the top right mounting hole is broken off, only 3 bolts holding it in. http://i231.photobucket.com/albums/ee39/h4040510/1955%202nd%20Series/Trans.jpgSecond photo shows floor shift in relation to seat, too far back and too close to the seat. http://i231.photobucket.com/albums/ee39/h4040510/1955%202nd%20Series/DSC_2713-1.jpgI plan on getting a T5 and installing over the winter. I am trying to find out if this transmission is shorter that the T5 and will I need to shorten the driveshaft. I don't know if the driveshaft in the truck is original or if it is shorter or longer because of the previous trans swap. All comments appreciated. Thanks, Hugh | | | | | Joined: Oct 2005 Posts: 1,317 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 1,317 | Can't help you with the ID of your current transmission but suggest you do a search for W/C (World Class) T5's used in Camaro's behind the 305 engine. This transmissions rating would make it in stock form, only marginal behind a 350.
Several modifications to the shifter location and speedometer drive gear position are outlined in the "Hybrid T5".
Sorry I couldn't be of more help!
Dave | | |
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