split case 4:1 gear sets!!!!!

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Isn't the H55 about the same length as an H41/42 with a toy box?:confused:

not at all. the early version of the h42 is 2" shorter than the later h42 and the h55f. the toybox will add roughly 6" to the h42 or h55f without taking the adapters on both sidesinto consideration. they add roughly another 1.5" per side depending on the application. so even with the short h42 you'd be at least 6" longer than with the h55f. that's a lot when you're talking about a 40 where rear driveline length is always a concern. in wagons it's a non-issue.

georg
 
i could'nt dis-agree more. you'd rather wheel with an auto with a single low geared t-case than with a standard and wheel speed is one of your concerns? unless you're running a full manual valve body you have to wait for the auto to shift it's way thru the gears. with the standard trans you can take off in whatever gear you desire.
and i don't subscribe to your theory of high being too high and low being too low either. you can't tell me that 5th in low is too low and for the same trail 1st in high is too high. even 4th gear in low range is higher than 1st in high range.
i like both sticks and automatics and they both have their place.

georg

I understand where you are coming from and respect it completely. Again, I am just expressing my opinion and experience. I dont think there is a right or wrong answer here... just one preference over another. To set it straight though, my preference is with a solid motor capable of 5500rpm range, an auto (stock torque converter), and a doubler. I agree sticks and autos have there place and I think there are MANY MANY variables that going into making gear choices whether it be in the transmission, diffs or the cases. HP, torque, RPM range,location, usage, strength, cost, even the cam shaft all need to be considered before making any dramatic choice.
 
not at all. the early version of the h42 is 2" shorter than the later h42 and the h55f. the toybox will add roughly 6" to the h42 or h55f without taking the adapters on both sidesinto consideration. they add roughly another 1.5" per side depending on the application. so even with the short h42 you'd be at least 6" longer than with the h55f. that's a lot when you're talking about a 40 where rear driveline length is always a concern. in wagons it's a non-issue.

georg
So my 75 FJ40 H42 with a toy box and Orion is longer than an H55?:confused:

It does make for a short rear DL.
 
looks like the best product for the LC from AA so far in 2011!!!

how loud are they? I have to be able to listen to my audio books from the iphone on the way to the mall in the 80...although the 4BT might negate the noise :)
 
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looks like the best product for the LC from AA so far in 2011!!!

how load are they? I have to be able to listen to my audio books from the iphone on the way to the mall in the 80...although the 4BT might negate the noise :)

come awn ken, you gotta at least read the first post! ;p


i did go to the shop on sunday and finished the case. nice not having to deal with anybody around, no ringing phone, no other interruptions,.......got it done in under two hours.

georg
 
here's a mock-up pick from late last week. and another one to show the much smaller low gear portion on the idler and larger diameter of the low speed output gear.
mock up.jpg
idler.jpg
 
here are a few shots showing the finished machine work to create clearance for the larger low speed output gear.
clearance 1.jpg
clearance 2.jpg
clearance 3.jpg
 
IMPORTANT!!!!!

VERY IMPORTANT!!!!!!!


as i found out during mock-up, the threads on the allen head magnetic drain plugs are too long and the plug will bottom out in the gear before it bottoms out in the case.

DO NOT USE MAGNETIOC ALLEN DRAIN PLUGS WITH THIS GEAR SET OR YOU'LL RUIN THE GEARS!!!!!!!:mad:

the factory hex magnetic drain plugs offer plenty of clearance.

just one of the reasons why i always do a complete dry mock-up run on any adapter or gear set i'm not familiar with.......
drain plug hits.jpg
drain plug clears.jpg
 
everything else went together very smoothly. here's a pic of the finished case, ready to be installed in my 80 next week. turns super smooth, feel great. we'll find out soon how well it works. :steer:

hth

georg @ valley hybrids
case done.jpg
 
sorry about the sideways pics, been a long week and weekend. full schedule at the shop, getting ready for the swap meet every evening, swap meet saturday ( got up at 5am and back home at 6pm ) and then back to work sunday morning to build this case. needless to say, i slept like a baby last night......
 
Ummm.....okay, I would like more info/links as to how you did the split case in an 80. :hhmm:

He's running a GM Auto tranny with an adapter to the 60 series split case.

If you have an A440 transmission, with a little bit of work and Frankenstein combination of parts, you can have a 62 series split case with these gears behind an A440.

Needed:

A440

62 series A440 output shaft

40 or 60 series split case main shaft

62 series split case
 
Cool! I'm not even done with my build and I can start a list of mods! :)
 
That is looking very nice. That assembled case is definately drool worthy, any idea based on the labor you have in it so far what the out the door price might be for a housing shipped to you.
 
Don't you think the gears would easily win the battle with a magnetic drain plug? I can't imagine that

a) it would screw in all the way as close as that looks

b) that the gears would not make quick work of the magnet...no harm done.

is that a chance you wanna take on a $1500 gear set, a bunch of machine work and all the assembly/install work? i'm sure if you tried hard enough you could screw the drain plug in there a ways. i think the zinc plated portion of the plug ( threaded portion ) is hard enough to deform the gear even if ever-so-slightly. eventually that little defect will do more than enough damage.........


so just use stock drain plugs. ;)
 
That is looking very nice. That assembled case is definately drool worthy, any idea based on the labor you have in it so far what the out the door price might be for a housing shipped to you.

thanks.:)

i am going to try to set up a jig so i can make the machining process as economical and consistant as possible. i guess i'll do that when i get an order for a case mod .......
realistically, i'd say 1-2 hours worth of work by the time it's all said and done. that's of course if the case is already cleaned up. i usually put about two hours of prep work into my cases and hard parts as well as hardware. then again, i seem to be a little more anal about cleaning these things up before assembly than most people. i don't mind getting dirty when i tear something apart o nthe bench, but when it's going back together i like doing "clean" work.

georg
 

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