D2 Axle Build

Thebloody323 wrote:

It's a trap! You don't want to find what he's hidden in that thing.

I decontaminated every inch!

TOM R wrote:

Is that really  a good place, if you follow ed around enough that areas bound to be under water  eventually , just thinking out
Loud

I was planning on putting it under the hood, but there just wasn't enough room for it. Plus, there would have been a lot of heat from the headers. Under the seat is a clean, dry spot that has cool, clean air. I had the same thoughts you did, (not about Ed though), and if I ever get stuck in that deep of water, the whole truck is going to be toast. Moral of the story, let someone else try unknown puddles. The compressor is made to run underwater (waterproof electricals and a 'snorkel' kit for the intake) so a little bit water isn't much concern.

This ended up taking a lot longer then I thought it would, but I wanted do it correctly the first time.

I ran the harness through the factory hole on the passenger side firewall, and there was still enough wiring to run it along the transmission tunnel and have it come out at the compressor.



Used some thread sealant and sealed all of the fittings on the compressor and manifold.


Put it all back in and plugged it in and it works perfectly with no leaks.



It took me 50 seconds to air up my 33" tire from 15lbs to 30lbs. 4 minutes to air up all the tires from trail to street pressure isn't bad, and it's a lot quieter then I was expecting. Overall, I'm impressed with the compressor and the rest of the ARB parts.

Wow that's some cfm to fill that fast, no reservoir just straight compressor?

TOM R wrote:

Wow that's some cfm to fill that fast, no reservoir just straight compressor?

It regulates the air between 135PSI and 150PSI and has a flow rate of 6.16 CFM. I don't have a tank right now, but if I wanted to run power tools I'd need one.

Guess I've forgotten to check in over here for a while.

Are you planning to go to bigger tires? I'm running the Ashcroft ATB diffs with their 4.12 hd gears and 255/85 (33") tires. They've made a huge difference in performance and all around drivability.

I'd be concerned that these 4.75 may actually be too low for such small tires though. Have you run this ratio with 33" tires before? I know guys on 35's who run 4.56s, but hadn't heard anyone was up to 4.75 on a tire this small.

Either way, I'll be interested to hear how the 4.75 gears work out for you...

dcarr1971 wrote:

Guess I've forgotten to check in over here for a while.

Are you planning to go to bigger tires?  I'm running the Ashcroft ATB diffs with their 4.12 hd gears and 255/85 (33") tires. They've made a huge difference in performance and all around drivability.

I'd be concerned that these 4.75 may actually be too low for such small tires though.  Have you run this ratio with 33" tires before? I know guys on 35's who run 4.56s, but hadn't heard anyone was up to 4.75 on a tire this small.

Either way, I'll be interested to hear how the 4.75 gears work out for you...

I agree with you on all of that. The biggest difference is having a 5 speed. My dad had a 5 speed D1 on 32s with 4.14 GBR gears and it was was a well rounded truck, but could've used deeper gears in the rocks. For the amount of highway driving I do, (only to events), I figured I'd give up the cruising speed (for now) to benefit in the rocks.

I'm taking the tcase out of my parts truck partly because I don't trust the one I have now, but also to build it with Ashcroft 1.003 high range gears. With 4.75 gears and 33s, it'll get me pretty close to the same speed/RPMs as 4.12 gears.

4.12 gears with stock 1.222 tcase gears and 33s- 70MPH at 2,600RPM


4.75 gears, 1.003 tcase gears, and 33s- 70MPH at 2,500RPM


And if I win the lottery, 4.75 gears, 1.003 high range gears, 5:1 low range gears and an underdrive...


I haven't driven, ridden in, or know anyone (personally) with 4.75 gears, but I have a Toyota with dual tcases which has a final drive of 223:1, and ridden in a 300TDi/R380 Range Rover Classic with an Ashcroft Underdrive. I love gears.

As for tire size, I'm not sure. I always think about going bigger, but there's not much reason.

I'm also interested to see how it turns out. The plan is to strip the parts truck this weekend and hopefully build the third members the 21st/22nd.

Picked up the parts truck and started taking it apart-

Not much to say... Hoping to have the third members built next weekend.

Rear axle is stripped-

Made a little bit of progress. Third members are built and the axles are painted.

looking really sharp!!!!!!!!!!

Hilltoppersx wrote:

looking really sharp!!!!!!!!!!

Thanks Ed! Hopefully I can make it out to the annual this year.

Out with the old and in with the new!
The new axles are in and mostly everything is hooked up. The gearing is 'perfect' for the driving I do on a daily basis. Instead of using 5th as an overdrive (60-65MPH+), 5th is used anytime over 45MPH. I haven't tried low range off road, but first gear on black top is pretty slow.







BTW, old Kam axles will be for sale.