Father son project cj2/3

Very nice -  great project. You are a little ahead of my '47 CJ 2a project now, although I hope to be driving it by the end of the month. I've been working on mine for 3 1/2 years! I did take a few 1-month breaks from it. That and I'm very slow and don't know what I'm doing. 

Right now its completely stock drivetrain...so it runs about the same speed as a stock willys. but i dont lose any speed on steep hills. I maintained 45-50 in 3rd up a pretty substantial grade. I have a saturn overdrive I plan on putting in the jeep I just havent done it yet. Its in my other jeep. that jeep has much higher gears so its not really a necessity. This jeep will benefit more from the OD given the 538 gears.  my speedo jumps around a lot. I need to confirm with the gps but 50 mph in high gear with no OD is 2700 rpm. These engine can easily handle 4000 but 2000 sounds much happier. 35-40 @ 2200 is just about perfect. The 25% OD should put me at 2025 rpm @ 45 That would be awesome. This engine is very smooth from 1500-4000...  I am getting a strange noise that I need to figure out. I cant tell if its drivetrain or a rattle or something loose. It only happens in 3rd gear above 40 mph on bumpy roads.... smooth roads or slower speeds or a different gear and I dont hear it. Id does not seem to be rpm related. I kinda think it may be transfer case but its very intermittent and random. Ive spent about an hour looking at everything and tightening bolts. I even took the PTO cover off and got a mirror everything looks fine. the trans/t-case are 135f after a good drive in 85f degree weather. Any ideas. I would describe the noise as a small child banging a hammer randomly on the underside of the tub to the rhythm of the bumps in the road haha!   

Well, I put the jeep on jack stands and tried to isolate my noise. I can only get the noise with the idling in 3rd gear. Its a loud rattle. I can tell if its the clutch or the parking brake assembly. From the passenger side it really seems like its coming from the parking brake drum area. from the drivers side it sound more towards the front clutch area. I put the trans in 3rd and the t-case in neutral and the noise goes away so that makes me think its not the clutch or transmission. I tried all different speeds and RPMs with the dana18 in neutral.....no noise. Engage the rear drive and the noise comes back. I suppose it could still be the clutch if the drive line lash is causing the noise. I suppose I could pull the inspection cover and try to look listen.  I have no vibration with the clutch in or out at idle or when revving it up. Im stumped. 

well I think I figured it out..... stupid simple if I’m right. Pictures coming soon. 

Have you looked in your tool box to see if something is rattling around in there? Another place to look not RPM related and active when on rough road would be something in the suspension. A lose spring hanger or U bolt

Hey what's up finally made an account today I was the one trying to get ahold of you from YouTube videos LOL my email is Jeffs240Zyahoo.com

Finally got around to making a drive video....

Edited by Millennium falcon - 09 May 2018 at 1:39pm

ndnchf wrote: I get an error when I try to play the video. It says to try again later

Falcon, excellent 'drive' video and the walkaround is a bonus! Your 2A is impressively engineered.