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Lower Transfer Case Gears

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jpet View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jpet Quote  Post ReplyReply Direct Link To This Post Posted: 14 Nov. 2022 at 7:07pm
Originally posted by duffer duffer wrote:

Have you checked to see how much deflection there is in the case when snugged/extended between the intermediate shaft bores?
there is no deflection. The assembly is designed to fit perfectly
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Post Options Post Options   Thanks (0) Thanks(0)   Quote duffer Quote  Post ReplyReply Direct Link To This Post Posted: 14 Nov. 2022 at 9:55pm
I didn't mean to infer that the assembly moved the case walls.  But torquing the nut could suck those in just like using the expander to install the gear/bearings if any slack develops.  That could come into play as the bearings wear.  It may actually be beneficial for some adjustment.

I'll run a test on the case I have sitting on the bench.


Edited by jpet - 14 Nov. 2022 at 10:18pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jpet Quote  Post ReplyReply Direct Link To This Post Posted: 14 Nov. 2022 at 10:18pm
I have thought of that if it’s necessary but I’d prefer to come up with a recipe that is permanent, needs no adjustment, holds the case solid without putting any stress on it. It might not be possible but that is my goal.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jpet Quote  Post ReplyReply Direct Link To This Post Posted: 21 Dec. 2022 at 9:35am
Hi All,

Here are a couple updates. First, for those waiting on gears …



I have several sets back from heat treating. I do have to hone out the output gears to size. I’ll get that done the week after New Years.

For those who are on “the list”. It would be a good idea to ping me to make sure I have your info and make payment. If you have not sent me an intermediate gear or made arrangements for me to provide one, you are NOT on the list. Better tag in. Send me a PM, text, or email.

Intermediate shaft:





I want this assembly to be precision with no gaps between inside of case, bearing races, inner bearing spacer, but after considering duffer’s advice and realizing that if the bearings break in and get loose, I would have no way of tightening them up, I decided to make a compromise. I’ve shimmed the cups so that now if I bear down hard on the nut the bearings have more resistance than I’d recommend but still will not lock up. When I assemble it, I will set the nut to the correct preload but the nut will still be tight enough that I feel like the sides of the case are tied together solidly. If the bearings break in and get loose I will have just a little bit of freedom to crank the nut a little harder … not much though. I will use a 7/8-14 nylock nut as a castle nut and cotter pin do not provide accurate resolution to set preload.

Finally, a little FYI:



Broke another spur gear tooth. This was in a stock 1-1/8 shaft case, I.e. 21/39 spur gear set.
This validates in my mind that if you are running a 4.3 Chevy or bigger, with granny 4 speed you should highly consider running a transfer case with the 1-1/4” intermediate shaft, I.e. 29/39 helical set - 18/33 spur gear set.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jpet Quote  Post ReplyReply Direct Link To This Post Posted: 21 Nov. 2023 at 3:50pm
Hi all,

I have some commitments on gears and several tire kickers.

I am in the process of making 10 sets but I can do more if I have enough people commit. To those "on the list", If you have not sent me your intermediate gear to machine, you are NOT on the list. Once you send gear, I commit to you.
You can PM me here or email me: jpet@classicjeeptops.com

Thanks for reading
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jpet Quote  Post ReplyReply Direct Link To This Post Posted: 21 Nov. 2023 at 3:52pm
FYI, I have made 27 sets now. Many are in vehicles now with two or three seasons under their belt.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rocnroll Quote  Post ReplyReply Direct Link To This Post Posted: 21 Nov. 2023 at 5:39pm
What is the current price?


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Post Options Post Options   Thanks (0) Thanks(0)   Quote jpet Quote  Post ReplyReply Direct Link To This Post Posted: 21 Nov. 2023 at 7:33pm
They are $1500 plus shipping plus, you have to send me your intermediate gear for machining.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rocnroll Quote  Post ReplyReply Direct Link To This Post Posted: 21 Nov. 2023 at 7:40pm
......Thumbs Up.......




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