Technical 8.8 Ford rear end in a 1940 Ford coupe

I have a 8.8 and want to change that yoke flange to a u joint style rather than the flange style? It's a 31 spline axle type off a explorer. Any tips on part numbers to swap the flange out to a u joint style? Thanks.

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03/04 Cobra would be my guess

 

Denny's sells yokes for various std. U joints. But considering the cost I prefer to use an adapter U joint myself. Only about $25, vs. $150 for the yoke.

https://www.dennysdriveshaft.com/p3...ion_yoke_1350_series_fits_ford_8.8_inch_.html

 

When I built my '39 Chev coupe I set the engine, and bolted up the trans. Then made my trans mounts, and set the 8.8" rear axle to center in the rear fenders. Got underneath and measured up the driveshaft length, and the length seemed like maybe a common size? So I began searching the internet and found a 3rd Gen Camaro V8 had a driveline very close to what I needed. I looked on local CL and found a guy parting one out, and bought the driveline for $40. Took it, and the Ford flange to my local driveline shop, along with a new 7" input yoke I determined I'd need for enough total length. Had new u joints installed, and one the adapter joint to go from the Chev driveline to the Ford flange, plus balancing. Whole deal, including the driveline purchase came in under $200. And if I ever needed another driveline i just use a 3rd Gen Camaro stock V8 unit.

 

I bought this one,

https://eastcoastgearsupply.com/i-5767542-ford-8-8-forged-1310-u-bolt-yoke.html

 

Thanks man!!

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Hate to link another site for info. BUT, Check this out. Very well put together data source for 8.8's.

https://www.therangerstation.com/tech_library/Ford-8_8-axle.shtml

Im looking for a few 8.8's now, even though I have a few factory narrow 9"s on the shelf. Some builds just dont a 9" and the cost associated. A ready to go 3.55 to 3.73 "posi" that needs brackets is perfect for a driver, cruiser that'll never see slicks.

 

Your welcome. Its a Yukon piece, so it should be available just about anywhere. East Coast Gear Supply just happens to be the closet to my house.

 

By any chance, did u have clearance issues in the driveshaft tunnel with the old 5 inch coupler vs the u joint style?

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That's not a 1940 ford coupe tho.

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