I put my driveshafts in with my new waggy 44 set up and my angles are looking horrible :eek: ! I know a few people have been working on wag. 44 swaps this year with wrangler leaves, so I wanted to see what angles you were encountering. I am running the buick 231 to sm 420 to d18, with jc whitney wrangler stock packs with add-a-leaves sprung over. The tcase cross member has a 1.25” spacer to drop it. I moved the front and rear axle forward an inch. The rear drive shaft sits at 25 deg. with the pinion turned up 7.5 deg. and the t-case pointing down at 6 deg. Worse comes to worse I can put a cv on it. What concerns me is the front. It sits about 20-25 deg. the pinion is turned up at 5 deg. and the tcase points up at 6 deg. I am afraid once I drop the passenger side wheel, I am going to have zero joint movement and break something. Whats worse it I am not sure if a cv is possible because the 420 comes very close to the output on the tcase and the d-shaft u-joint. What angles and solutions are people running in to with similar set ups?

Tim

Just curious as to how you are measuring the angle. Not trying to insult you but these angles seem excessive especially with a 420 d-18. You should have damn near the best angles possible or your driveshafts are really really short.

arndog

I thought the same thing when I began my swap, thats whay I am scratching my head. With the pinion angles, I am measuring with my angle finder from 1. the flat section near the pinion, 2. flat surface for the covering plate, which is 90 deg. to the pinion. Measuring t-case from the flat spot near the rear out put shaft. The drive shafts are measured the only way I think you can measure them ;)
My d-shafts are fairly long compared to the original set up (I don't have the lengths on me) off the top of mey head the front is around 26", pinion to pinion, rear around 19".
My only guess is the "stock" jc whitney replacement springs are giving me more lift than regular stock springs.

Tim

Just to make sure Im doing my math right you say you have a 25 degree angle on your rear shaft. With a 19 " shaft your axle pinion is 8" below your t-case output. I don't mean to sound so amazed but with a dana 18 (offset low and to the passenger side) this seems pretty tuff.

My willys and now my cruiser in stock configuration have / had horizontal driveshafts due to the offset transfer case. from this thinking a spring over would net an 8" inch lift. I would think you would be hard pressed to get a sprnig over on stock springs to net you an 8" lift. If you did Im sure some people around here would like to know.

One solution is to get yourself some wagoneer springs (do a search on here) and flip them around. Should give you a slightly longer rear driveshaft.

The front im not sure about but you are correct I don't think a cv will fit with the 420 in there.

Sorry to keep up with the questions.

arndog

first off your diff angle is low- 7 degree's is quite low- when you roll it up keep in mind you need to overfill it a little and use senthetic oil to prevent premature brg failure- enough of that- if you roll the diff up it will help alot and you might actauly get it where it tollerates the angle with out a c/v - but if not then your set up for a c/v -Jess

Originally posted by onetoncv
first off your diff angle is low- 7 degree's is quite low- when you roll it up keep in mind you need to overfill it a little and use senthetic oil to prevent premature brg failure- enough of that- if you roll the diff up it will help alot and you might actauly get it where it tollerates the angle with out a c/v - but if not then your set up for a c/v -Jess

Good thought. Lets say I roll it up to 10 deg. (2.5 deg shims) that would net a 4 deg difference between the pinion and tcase. Would I experience any driveline vibration with that difference?

Originally posted by arndog
Just to make sure Im doing my math right you say you have a 25 degree angle on your rear shaft. With a 19 " shaft your axle pinion is 8" below your t-case output. I don't mean to sound so amazed but with a dana 18 (offset low and to the passenger side) this seems pretty tuff.

My willys and now my cruiser in stock configuration have / had horizontal driveshafts due to the offset transfer case. from this thinking a spring over would net an 8" inch lift. I would think you would be hard pressed to get a sprnig over on stock springs to net you an 8" lift. If you did Im sure some people around here would like to know.

One solution is to get yourself some wagoneer springs (do a search on here) and flip them around. Should give you a slightly longer rear driveshaft.

The front im not sure about but you are correct I don't think a cv will fit with the 420 in there.

Sorry to keep up with the questions.

arndog

Don't worry about all the questions, I want to figure this out too.

The wagoneer packs might have to be an option, even for the front. I'm guessing they are 2.5" leaves

I'll have to measure tonight to see what the difference is between the pinions actually are. I have the 4 + wrangler conversion brakets in the rear (got em before I started to weld my stuff) and that nets around 1-5"-2" below the frame where the springs hang from. I used rubicon express ant-wrap perches, add 5-5.5" lift for a spring over plus an add leaf, and I could see 8". I will be curious to see what I actually gained tonight though.

Tim

Originally posted by onetoncv
first off your diff angle is low- 7 degree's is quite low- when you roll it up keep in mind you need to overfill it a little and use senthetic oil to prevent premature brg failure- enough of that- if you roll the diff up it will help alot and you might actauly get it where it tollerates the angle with out a c/v - but if not then your set up for a c/v -Jess

Jess is right on. 100% I can vouch.. Im tunnin a 231/sm420/d18 on my 71 with no vibes and without a c/v anywhere in the mix.

Sounds good, I'll give it a shot!