8.8 swap yoke question

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72smallairparticler

72smallairparticler

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Context: swapped out my 7.25” rear for an Exploder 8.8 rear. Previously I had a slant 6 904 transmission in and a 7260 yoke

Two things. The flange from the 8.8 is in need of some yoke or converter. I have no idea if my driveshaft will even work but wont know the shaft length needed (to order) til I drop the engine/trans back in and find the distance to the flange.

Do I need an adapter yoke? Should I order that first and then measure for driveshaft length?

Anyone have recommendations?
 
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What type attachment does the 8.8 have? Is it the round flange? A picture is worth a thousand words here.
 
+1 to what RRR said, it's all about the attachment.

if it's a standard yoke you'll likely get off with just a combo u-joint, although you may need a new weld yoke-- it's kinda dependent on the power you're gonna be making and the shop.

with the flange yoke, you'll need the corresponding flange yoke in the shaft and there you'll likely need a new weld yoke to match-- most shops don't like to do combo joints in that type of assembly.

at the end of the day, it's down to who's building the unit.

no matter how that shakes out, you can't measure for the shaft till everything is in place. and, again, you'll need to talk to who's building it how they want it measured.
 
8.8's have a flange on them. There are at least 2 sizes that I know of. Spicer and other brands sell them.
DSC02996.jpeg

Denny's Driveshafts Ford 8.8 inch rear end pinion yokes axles flanges and related parts

Denny's Driveshafts Ford 8.8 inch rear end 1350 series chrome moly pinion yokes, cobra pinion flange and 1310, 1330 and 1350 flange yokes
www.dennysdriveshaft.com

Part way down the page.
 
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And you can buy conversions joints. On my TKO in the front I have a 1330 to what ever the Big Mopar one is. I forget the number.
 
so you'll need a flange end on the shaft.

beyond that though, you need to talk to the driveline shop. they may be able to reuse your shaft or they might insist on building out a fresh one.

at best you get by with shortening it, a new flange and probably a combo joint, a new joint up front and a balance. but there's a whole bunch of country between there and "whole new shaft", and that's up to who's doing the work.
 
why not just replace the flat flange with a conventional u-bolt type yoke such as Yukon YY F880601 ( 1330 series ) you can also get 1350 series as well ,, since you should rebuild the 8.8 diff with new bearings ,, seals etc. install this yoke as part of the rebuild and once your engine /trans is installed measure and have the new driveshaft built , , done. if you do not want to buy the yoke new ,,at any pick and pull parts yards near you look at any early/mid 80's Ford F150's with 8.8 rear axles they should have this type of yoke installed.
 
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Spicer 2-2-1379 flange yoke will bolt to your existing round Explorer pinion flange, it takes a 1310 u-joint.

You could also replace your existing round flange yoke with a Powertrain Industries 3304-05 pinion yoke, which is a conventional u-bolt style yoke that fits a 1330/1330F (Spicer 5-7438x) u-joint. The 1330F side of that joint goes into the yoke, it uses a thicker 1330 bearing cap that resists being crushed out of shape by the u-bolt. The driveshaft side of the 1330/1330F u-joint is normal 1330.

Grant
 
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