I must not be too good at searching, because I didn't find my answer.

I have a 19 Spline power-Lok out of a flanged D44. Can I simply change out the side-gears with new 30-splines and install it in my Scout II Dana 44 front?

If so, and you guys have a good source for differential parts, feel free to pass that along as well.

Thanks, Josh

Yes you can, but good luck trying to find a set of side gears.

PS, hooray for you for starting a thread that isn't about a vendor.:laughing:

Yes you can, but good luck trying to find a set of side gears.



Are they obsolete? Seems like you should be able to buy new from anyone who sells rebuild kits, etc. Would side gears from an open carrier work, or are they Power-Lok specific?

Yes you can, but good luck trying to find a set of side gears.

PS, hooray for you for starting a thread that isn't about a vendor.:laughing:

i think d&c sells them..........:flipoff2:

IM KIDDING

Yes, you can convert a 19-spline to 30-spline. You'll also need to change the carrier bearings. Any good differential parts suppliers should be able to get you the parts, I used Randy's Ring & Pinion. I think the last one I bought several years ago ran about $200. What you are really buying is an internal rebuild kit for a 30-spline P-L, and of course you'll need clutches too. Be aware there are standard clutches and heavy-duty clutches. Also be aware that some of the early P-L's, very possibly yours included, used left-hand bolts on the case. And watch for the sharp edges, they will cut you.

Take a good read in this thread for more information on the bearing issue.
Ronnie asks the same question in 2004 (http://www.pirate4x4.com/forum/showthread.php?t=314246&highlight=)

Ronnie:)

Yes you can and its pretyty easy

the 19 spline Power lok does use a different bearing journal, but uses the same race as the later dana 44's. so like the above guys said use new carrier bearings

the inner diameter of the power lok is compatible.

most likely if you have a 19 splins your side gears are two piece where the side gear engages half the axle shaft splines and the cup engages the other half of the axle shaft splines. the new replacement pieces are out there now are 1 piece side gears that is the side gear engages all the splines of the axle shaft and then the cup locks into the side gear not the axle shaft.....therefore when you order new side gears you will need the cups also. your spider gears and cross shafts will interchange.

the modern clutch kits arent as cool as some of the older kits. make sure you request a kit will all steel disks. you do not want the fiber friction material on the disc's. the older kits sometimes came with the outer discs (the clutch discs with ears, there are three of these to a side) having the preload . the inner discs (there are two of these per side) are the ones that are slined to engage the outside of the side gear, in the new clutch kits these provide the preload.

we used to stack 2 inner curves and 1 older outer curve to each side to acheive a total of 6 preloaded discs and 4 flat discs for pretty tight operation


order the HD kit it will come with 4 curved inner discs. and 6 eared flat outer discs. this will provide good traction in most situations especially a 4x4. otherwise the std duty kits only come with 2 inner curves and 2 inner flat discs and then 6 flat outer eared discs. this setup works fine on an old drag car or for a mild front end application (like using 4x4 on the highway alot) front axle power lok but takes a little brake pedal load while applying torque to get the shafts to ramp up on ocassion. if you plan on needing it to engage more agressively do the HD in the front also.




hope that gibberish about ears inner discs and outer discs makes sense.

remember to use the friction modifier and a fair amount of it

didn't read dd's post, but if it's gonna cost you $200 to rebuild it, I'd suggest throwing an aussie locker in. I loved it, and Colorado Dave thrashed on it in HOS V1 before selling it to me:smokin:

Thanks for the resonse, guys. Definitely helpful!

I called around today and priced the 30 spline internals kit - $225. Clutch kits were all over the board, from $50 to $120 - wonder if that is the difference from the el-cheapo to the all steel kit? And, why new carrier bearings...just a good idea to do since it is all apart?

Auburn makes a Power-Lok clone for $399...seems I would still be better off to rebuild the Power-Lok I have.

The Aussie locker has a good pricepoint at around $225, but how well does it work? How durable is it? Compare it to a Detroit? Might be an option for the rear...what do you guys think?

The Power-Lok is going up front, open to suggestions for the rear although I am leaning towards a spool as they are cheap and durable.

The plan is 4.27 gears and 31x10.50s. Mostly fire roads and back-country trails - fishing, camping, exploring, messing around. Some pavement to get to the trails, but at least 75% off-road.

Thanks, Josh

My 2 cents.....I would just sell the one you have and buy a new one from Auburn:grinpimp:

My 2 cents.....I would just sell the one you have and buy a new one from Auburn:grinpimp:


I wouldnt touch an auburn if you gave it to me now a new power lok manufactured by precission gear then i'd look at it.

but you have a good point a used plok can fetch $100-150. a new plok from randy's or ebay seem to be around $360-400

you are going to have close to $125 in side gears/cups and $45 in clutches. add in spiders if they are buggered and you'll be closing in on another $50

say you sell it for 100 put that 100 towards a new one so now you'll have to spend 260-300 for a brand new unit with new case ect. you are going to spend $220 on parts in a worst case senario $40-80 and you wont have to mix and match carrier bearings, if you have a bearing puller you can re-use the bearings your existing d44 carrier has