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View Full Version : front drive shaft ? after soa

mwww2000
12-02-2003, 02:52 PM
Just wondering about the front drive shaft could i drop the transfer case 2 inchs would that help with the angle?
Stuka
12-02-2003, 03:02 PM
CV front shaft will solve the issue fo it. lowering the t-case without lower the engine would make the front output angle worse, because it would then point up.
mwww2000
12-02-2003, 03:09 PM
am i going to need a cv on each end of the driveshaft
mwww2000
12-02-2003, 03:13 PM
could i take my driveshaft to get shortend and get them to add some high angle cvs or do i have to buy a whole new drive shaft because up here in canada thats going to cost 800 to 1000 dollars
Stuka
12-02-2003, 03:25 PM
front shaft will need to be longer. best route is a custom shaft with CV's on both ends. then you dont have to worry about any binding when flexing.

800-1000 USD or canuck?
mwww2000
12-02-2003, 03:28 PM
canuk kingo
River Beast
12-02-2003, 10:53 PM
DO NOT do CV's on both ends.... this makes your angle greater.... this dual CV application is primarilary used for LONG shafts... not short ones.... and its not necessary for the FSJ.

you only need a high angle CV at the T-case... around $275 from www.arizonadrivelines.com (http://www.arizonadrivelines.com) ... talk to Steve NOT Oscar
jode
12-03-2003, 03:31 AM
Do all SOA applications REQUIRE front driveline mods?

Or can you get away without it?
River Beast
12-03-2003, 10:19 AM
you may get away with IF the angle of the CV is within 16-22 degrees... any more and it will bind ,, then break... then take out your tranny when it flops around.... not good
blt2krl
12-03-2003, 10:28 AM
Originally posted by jode:
Do all SOA applications REQUIRE front driveline mods?

Or can you get away without it?Jode, with a QT case it is a yes sir.
Robber80
12-03-2003, 11:23 AM
yeah must be differnet with the QT cause my np208, all i had to do was lengthen the shaft. its been goign fine for awhile now. oh i also notched the crossmember for now.
River Beast
12-03-2003, 11:36 AM
Rob,

also... the NP208 sits further back than the QT and the drive shaft angle in less overall... helps you out that way...
gearhead77
12-03-2003, 03:44 PM
I don't have enough money to play with you guys.
jode
12-04-2003, 08:30 AM
Originally posted by gearhead77:
I don't have enough money to play with you guys.Me either - so what are my options? Hopefully the ONLY option isn't that $275 high angle CV :rolleyes:
River Beast
12-04-2003, 09:19 AM
You can 'relieve' your OEM CV.... ;)

Its time consuming but can be done... I have... but I had help with an experienced friend on a computerized metal lathe....

The biggest relief that can be done is removing the dust cover from the ball and socket... you can gain about 3-5 degrees with the removal and slight grinding on the ball housing and H yoke....

want more?

take off the lip the dust cover snaps on (grinder with ease).... then start removing the inner material of the H yoke where the ujoints rotate.....

Trying to dig up the pics....
jode
12-04-2003, 03:19 PM
I remember seeing the pics of yours...so, that was all it took for you to be able to run it huh? I may be wrong, but I am thinking that I may not even run ito a problem...I have pretty saggy springs that will be used with the SOA and right now my 4" lift is causing me no probs at all...doesn't a SOA net 5-7"s? With the saggy spings I have, I imagine I'll be on the lower end of that scale....
River Beast
12-04-2003, 10:49 PM
well... I wouldn't say 'that's all'... 1 (we) spent about 80 hours total on mine... just because he is meticulous about his work.... you can see the relieved H yoke with the blue marking... the center of the H yokes is normally round and about 1/4" thicker over all.... we took out about 1/8" from everywhere inside to get more angle on the ball and socket and to allow the ujoints to have more clearance as well... I also put a spacer in the spring withing the ball and socket to allow constant pressure which it didnt have after the relief... CHECK THIS to make sure... its sloppy with no spring pressure....

you may ask yourself if this is strong.... I say yes... it has survived so far and made it thru Ouray... bent my axles and busted my T-case adapter.... and not one lick of trouble from this CV at all.. just required more grease due to not having the dust cap... gotta keep it clean too

found the pics...

http://www.fullsizejeeps.com/jeeps/files/RiverBeast/frontcv01.jpg

http://www.fullsizejeeps.com/jeeps/files/RiverBeast/frontcv02.jpg

http://www.fullsizejeeps.com/jeeps/files/RiverBeast/frontcv03.jpg

http://www.fullsizejeeps.com/jeeps/files/RiverBeast/frontcv04.jpg

http://www.fullsizejeeps.com/jeeps/files/RiverBeast/frontcv05.jpg

[ December 05, 2003, 05:59 AM: Message edited by: River Beast ]