Auto Trans

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Auto Trans

Postby dl_sledding » Thu Oct 02, 2008 12:23 am

Anyone ever try to fit an auto trans in a Sprite? Thinking a Ford C-3 or C-4, maybe a Chev 180?

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Re: Auto Trans

Postby Charlie Tolman » Thu Oct 02, 2008 9:42 am

I had sent a similar question to Rivergate, the company that offers Datsun 5-speed manual transmission kits for a Sprite / Midget. In particular, I asked about the fitment of an automatic transmission from a Datsun, which was used in the same time period as the 5-speed. They replied, saying that they did not have any information.

There is a small bellhousing for the C-4 Ford transmission, which was used in a few Mustang II models, from 1975-79. The casting number is D5ZP-7976-AA, with an OEM number of D5ZZ-7976-A. I have one for a project, which is not a Sprite. I do not know if this will help with the C-4 fitment in a Sprite.

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Re: Auto Trans

Postby garyeanderson » Fri Oct 03, 2008 7:23 am

I have a couple of the C4 ford automatics that were origanally used in the early (1972 to 1974) Ford Pinto with the 2 liter OHC engine. they are a large gearbox and with the small torque converter weigh more than 100 lbs. They are fairly big for the job and I would think involve some cutting to make them fit. I could really only see using the the gearbox if you were going to swap in the ford engine too. I took some photos of the C4 gearbox and bellhousing and other components a while back. if you need some dimensions I can get them fairly easily.

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Re: Auto Trans

Postby Charlie Tolman » Sun Oct 05, 2008 1:53 am

Installing an automatic transmission that is not a perfect match for an engine, would be a challenge, but it probably could be done.

Rivergate suggests using a 5-speed manual transmission from an Aug. '79 through '82 Datsun 210. Some earlier years also fit, but the drain plug is different.

I did some searching, and found some 3-speed automatic transmissions from 1979 Datsun (Nissan) 210 models, with the correct transmission number of 3N71B (Hollander 52738 ?). I also found some 1981 units, but there was no part number listed. This tranny has gear ratios of 2.46:1, 1.46:1, and 1:1.

The case and bellhousing might be close in size to that of the 5-speed manual, since both trannys fit the same Datsun car. Therefore, the auto tranny might fit into the space afforded by a Sprite. However, connecting the Sprite crankshaft and Datsun tranny input would be a challenge.

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Re: Auto Trans

Postby dan » Fri Oct 24, 2008 9:36 pm

That would be an interesting conversion...have never heard of anyone pulling that off!
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Re: Auto Trans

Postby yloboxcar » Sun Nov 08, 2009 8:19 pm

Has anyone attempted to mate a Austin Marina (73-75), 1.3L, A Series, automatic transmission with the 1275 cc engine of the Bugeye? The automatic was an option on the Marina.
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Re: Auto Trans

Postby Charlie Tolman » Mon Nov 09, 2009 1:22 am

From the information that is on the Internet, the 1973-75 Austin Marina had a 1275 cc engine, but it was also fitted with a 1.8 liter engine (MGB ?).
An automatic transmission, the Borg Warner T-35 (Leland # SA303), was available with the 1.8 liter engine, and probably not with the 1275.

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Re: Auto Trans

Postby opplee » Wed Nov 24, 2010 4:53 am

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