Got some bad news, some good news, and could use some advice.

[rampagefsj]

I found out some good news and some bad news when my advanced welding class went to the junkyard to find parts for junk animals to weld up.

The bad news- The J 10 that I said that I took to the junkyard a while ago (Reaper in my sig.) in general discussion has been crushed.

The good news- My teacher parked us right next to a complete tranny and T case that I identified as an SM 465 and an NP 205. I got done scrounging early and found the junkyard owner who said that I could get the tranny and T case together for $40 or $20 for one or the other. [img]tongue.gif[/img]

Now I allready have an NP 205 at home that has good internals, but the rear output is a little wobbly and needs work. The junkyard one has a great rear output and a flange on the front output that from my understanding, might be stronger (correct me if I`m wrong). A driveshaft came with my D60 front that seems beefy as hell that I`d like to use and this output would let me use it. I`d like to know if I`m right or wrong in my assumption and wether or not I should use that front driveshaft.

Also, I found a couple of Eaton rear ends and would kind of like to know out of curiosity, what gear ratios came in them.

Also again, I`d like to know what gear ratio that I have on a dana 60 carrier that I have. It has 41 teeth on the ring gear and 15 teeth on the pinion. I keep getting 2:77 whenever I divide the ring by the pinion, I think that I may have gotten the wrong pinion whenever I bought the carrier because I saw on the ring gear somewhere the numbers 41 and 10, which come up with 4:10 and seems more reasonable.

Sorry that this may be a bit long but any help is greatly appreciated.

[bigun]

Sorry to hear about the J10 R.I.P.
Good news on the finding the tranny/transfer case buy them and store them if you can could be the making for something or barter material later down the road.
unknown on the eaton diffs.
some where I have gear calculater chart I'll look for it.

[scotty]

eatons were used during an era when has was cheap and plentiful. im not sure what ratios were available,but ive been told its not uncommon to open one up and find 4.88s or 5.13s.

my 68 chevy c30 must have had at least 4.88s,youd have to wind it out in each gear to get any speed,and it only had a top speed of about 55 mph. and you could watch the needle move on the gas gauge while you were driving it i never did get around to opening it up and checking it,but i know it was low

if you can get them cheap they are worth running. thhey have a massive 11.5 inch(i think) ring gear and 1.5" course spline axleshafts. i know course splines are not as strong as a 35 spline would be,but its still a good strong axle.

only downside is that you need a big tire for clearance under the big diff.

[ November 11, 2005, 05:44 AM: Message edited by: scotty ]

[rampagefsj]

Originally posted by scotty:

only downside is that you need a big tire for clearance under the big diff.

Hehehe, read sig, are 39.5s enough ? I was curious, because it could be a cheaper low gear swap in the future. One of the axles was under a dually with a straight 6, so I thought that the gears had to be low.

[rampagefsj]

Do you think that they are about as wide as a dually 14 bolt? And where, aside from cracking it open, would I find the gear ratio?

[ November 11, 2005, 10:44 AM: Message edited by: rampagefsj ]

[rampagefsj]

The front output on the T case looks like this.
http://cgi.ebay.com/ebaymotors/CHEVROLET-NP-205-TURBO-400-TRANSFER-CASE-ROCK-CRAWLER_W0QQitemZ8013172946QQcategoryZ46104QQssPag eNameZWDVWQQrdZ1QQcmdZViewItem

[baja]

If the Eatons are H052/H072 models, 3/4 and 1 ton models, the most common ratios I've seen are 4.10's 4.56's and 5.13's, I have heard of a reference to 5.87's also, but very rare. These are good rear ends, and can be found in many differnt vehicles such as delivery vans and motor homes etc. and it's not uncommon to find them with Detroit Lockers from the factory. But, they are very similar to the ford 9" rear, in that the pinion sits low in the case, and causes more wear on the ring gear. If the axles are still in the truck, you may be able to read the option list on the inside of glovebox door to find out gear ratio and differential type.

baja

[bearfacedkiller]

I was under the impression that GM 205's with a yoke are course 10 spline and the one's with a flange are fine 30 spline.