The Ford Barn - T86/R10: I6 versus V8

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T86/R10: I6 versus V8

I just read this in another thread:

Quote:

Originally Posted by georgewarren (Post 351947)

Things are looking good! I always thought that 312s came with the heavy duty t85. All my 312s had the t85, and my 272 and 292s had a different tranny than the one you have; they had a rectangular side cover (the same as all my flatheads) The only tranny that I had that had a top cover was in a 56 F100. Good luck!

I don’t want to hijack Hivolt5.0's thread, so I’ll ask seperately: Is there a difference between the T86/R10 run behind the 292 V8 and the T86/R10 run behind the 223 I6? Or was the only break between the 292 V8 and the 312 V8? The latter of which received the T85/R11.

The reason I asked is that I'm setting up my Falcon 200 to use a T86/R10 from behind a '57 Ranchero 223. I also have a V8 bellhousing in case I someday want to run a 250 or a mild 289/302. I'm wondering if the 6-cylinder T86 is up to the task if not abused, or if it would be better to seek out a V8 T86 for if/when that happens.

I would think a T85 would be overkill for those applications, however.

Thanks,

Dave

Re: T86/R10: I6 versus V8

This is a really interesting question. I wish I had an answer for you but I'm pretty new to these trannys too.

Oh, and no worries about hijacking my other thread; I'm here to learn too.

Dave

Re: T86/R10: I6 versus V8

Well, in the interest of spreading the information around. Here's the response I got when I reposted on the HAMB:

Quote:

Originally Posted by Hnstray (Post 7725252)

While I cannot tell you I know with absolute certainty, my belief is that the T86 trans is the same capacity for both the six and smaller V8's. There may be a difference in ratios between the two, and in theory that could affect it's torque capacity, but I seriously doubt that small difference would be worth worrying about.

I didn't start out with this post with the following comment in mind, but did just think of it. I have a '63 Ford Galaxie trans, 3 spd w/OD. It is, technically, a 'top loader' (tin cover on top, gears go in through that opening) but I don't think it is the same as the HD units usually referred to as "Top Loaders". It has the '49 thru '64 bolt pattern.

Ray