Possible bad rear tranny seal

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StarDiero75
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Possible bad rear tranny seal

Post #1 by StarDiero75 » Sat Feb 17, 2018 7:22 pm

Howdy guys!

So i recently bought a rebuilt 65 3.03 toploader to replace mine. The new one was rebuilt 7 years ago and has never been run. So i am about to put it in and decide to fill it with fluid first since its easier to fill it that way.

So its sitting on the bench, the tail shaft is pointing downwards due to the way it sits, and after i fill it, it starts leaking out the back after about a minute of being filled. Is that normal? Does it only not leak with the driveshaft in it? Or is this a bad seal from sitting 7 years without being used?

Thanks guys!
Ryan
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

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wsa111
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Re: Possible bad rear tranny seal

Post #2 by wsa111 » Sat Feb 17, 2018 8:11 pm

Ryan, you need the driveshaft in it. If you still have a leak with the driveshaft installed, it could be a hardened seal or did they replace the tailshaft bushing. Check for excessive play with the front yoke in it.
67 mustang,C-4, with mod. 80 hd, custom 500 cfm carb with annular boosters, hooker headers, dual exh.-X pipe, flowmaster mufflers, HEI dist. Engine 205" .030" over with offset ground crank & 1.65 roller rockers. 9.5 comp., Isky 262 cam.
2003 Ford Lightning daily driver. Recurving Distributors. billythedistributorman@live.com
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StarDiero75
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Re: Possible bad rear tranny seal

Post #3 by StarDiero75 » Sat Feb 17, 2018 8:17 pm

wsa111 wrote:Ryan, you need the driveshaft in it. If you still have a leak with the driveshaft installed, it could be a hardened seal or did they replace the tailshaft bushing. Check for excessive play with the front yoke in it.

Ok good, thats what i wanted to know! I have no idea what exactly was done to it, all i know is that it was rebuilt 7 years ago.

Ill check it with the driveshaft in, thanks man!

Ryan
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

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