View Full Version : Going with 410 diffs, 8 bolt wheels

04-08-2007, 10:59 AM
I need direction[36]

I am taking out my 10/12 6 bolt diffs, and putting my 410, 8 bolt diffs underneath. Right now I am running the th350 and NP 208. Do I have to make any driveshaft modifications? The yokes on the 8 bolt diffs seem to be the same size as the ones I have right now. I noticed the rear shock mount on the rear eight bolt axle tube are a little different in length. That should not be a big deal.

The other thing is I am running 35 inch tires, on 15 inch rims. I was told I can buy steel 15 inch eight bolt wheels for $80 each at Fraser Valley tireland in Chilliwack. That way I can still use my bfg mt km's 35 inch tires that still have over 90% tread. Right now I have 16.5 inch rims on my eight bolt diffs. Would it be simpler to sell my tires and buy the right size tires for the 16.5 inch rims? But I was told the 16.5 inch rims do not have the capability to hold the bead in place like 15 inch or 16 inch rims, unless you to put tubes in the tires, especially if airing down. I was told if I go with 15 inch rims, eight bolt pattern, I will need to grind down the front calipers a bit. Does anyone have any pictures of exactly where to grind the calipers down? I am on a tight budget. I will be coming down to the Fraser Valley April 21 and 22nd. Maybe somebody can make me a deal. Can any of you give me insight into this project? I hope to be finished by the end of April.

I have the raise Pitman arm so changing the front diff I don't see any problems. I know I got to add a washer to the center bolt in my front springs because right now the bolt doesn't fit through the shim that changes the angle of the front pinion.

As for my six bolt 10/12 diffs, and the floor 15 inch rims that I have mounted on them, the rims are also offset, steel rally rims. I will be won't be needing this stuff anymore, I'll post this stuff in the for sale section soon.

04-08-2007, 11:48 AM
buy new 16 inch rims with 8 bolt then get some new rubber 16.5 are obsolete. 16 inch rims are about 115$ at kal tire. i just had to do the same thing. :)

04-09-2007, 09:28 AM
When I go down to Vancouver at the end of the month, I will take my 35" bfg mt km's that are mounted on 15 inch six bolt rally wheels, and see if I can trade them in on some 16" rims with rubber.

04-09-2007, 09:56 AM
You could grind too. Heavy Metal has recently done his, maybe you could ask him nicely for some pics.

If you want my rear shaft as well it has the correct conversion joint you will need for your rear 14 bolt.

04-10-2007, 09:03 AM
Keep the drive shaft for me too for now. My yoke on my 12 bolt I believe has been changed to the same one as the 14 bolt before I bought my Jimmy, but I'll measure it today. I'll definetly be buying the th350 and np208 off you for sure.

As for grinding the callipers I think thats the way I will go unless I can sell my 35's for $800 minimum. I have a lead on some 37's.

I plan to be in Maple Ridge by 11 am on the 22nd. Does that still work for you? I hope to back my trailer right up to the parts.


04-10-2007, 09:09 AM
The front 410 diffs has f\t hubs which I heard are much stronger then lockable. But where can I get a deal on lockable hubs? Maybe some used ones?

04-10-2007, 09:19 AM
Full time eh? hmm. You can buy warn hubs from say, lordco. I don't think they are too pricey.

There is a huge difference between a regular 12 bolt and a FF 14 bolt yoke, perhaps if you have a semi float 14 bolt it might be the same. But if you do need it, i'll just be selling the shaft for the value of the ujoint (about 50 bucks if I do remember correctly)

04-10-2007, 09:21 AM
I plan to be in Maple Ridge by 11 am on the 22nd. Does that still work for you? I hope to back my trailer right up to the parts.


Yeah, should work fine. If you can back up a trailer you will be able to back it up to em. I should have a cherry picker around to put em in for ya too.

04-11-2007, 03:59 AM
Well I think you can do better than 80 a piece for 15" 8 bolts. A year ago I paid 67 for white spokes. I think you will need a rear conversion joint. As for hubs, if your running a front 10 bolt still or certain Dana 44 I have some spare hubs I'll sell you if you want. I figure 50% of new. If you want them let me know and we'll figure out what that price is. I'm on the Island so I'd have to ship them to you.
I ground my D 60 calipers. I didn't take any pics but I used this as a guide.

04-11-2007, 08:09 AM
Thanks for the info Pigdog. Can you pm me price\brand on your used hubs, maybe a pic too if possible?

As for the driveshaft, forgot to measure yokes. I'll do it today.

04-23-2007, 08:05 AM
Pigdog, pm some prices on those hubs please:party0010:

04-23-2007, 08:07 AM
Kinslayer, can you send me the part #'s for your front brakelines?

04-23-2007, 05:05 PM
Yeah, I will when I get home tonight, my reciepts are on my desk.

04-24-2007, 12:30 AM
godtool if you have 14 bolt down here i can do it for you it will take hour to do the shave on ithere my #778-552-5906.i've done afew to many times got it down to an art.[cheers]

04-24-2007, 01:19 AM
Brake hoses:

BH36760 and BH36759. Those work with the D44 3/4 ton front axle, the one with the bigger brakes, the lines have the larger diameter hole in em.

04-24-2007, 06:50 AM
Thanks for all the info guys. As for hubs, yeah, I have the dana 44 that requires warn hubs part # 9072, or mile marker mmk423. Anyone deal mile marker in bc?

I also sold my bfg's down at the coast and bought 38"x13" tsl super swampers on 16" steel!

04-24-2007, 10:38 AM
pats driveline or sport trucks but pats should have them in stock heres the #604-881-0233 ask for Tevor he'll fix you up[cheers]

04-24-2007, 12:10 PM
All done, detroit locker and hubs on there way!! Who hoo!:party0010:
Time to get off the computer and start wrenching[36]