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Posts posted by 66dc75
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10 hours ago, AITG said:
I saw your comment on installing a radio and speakers: check to see if the truck is still positive ground. Mack held on to the positive ground system well into the 70s. The only real issue - besides not reversing the battery cables - was radios. Any of the aftermarket radios were negative ground and just reversing the red and black power wires resulted in making the chassis of the radio hot. Many bad things followed, as you can imagine. I do remember converting several trucks to negative ground but it's been too long to recall if the alternator had to be replaced.
This one is negative ground
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Looking good, thought you were hibernating
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2 hours ago, j hancock said:
Well..... ummmm..... RP, you will just need to shorten your legs a couple of inches...
Yeah I'm real bright, I'm 6'6" and I built the pickup with a concave cab and then bought a short cab R. I can stretch out in the Autocar though.
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Yup just dropped the drive shaft and bell housing off at the machine shop. We need to use the small bellhousing but it's an early steel one that doesn't have the big enough reliefs for the later counter shaft bearings cut into it. I would rather use the the steel one than the aluminum anyway. Have to go pick up the new 8 bolt straight cut gear pto today as the 6 speed used a six bolt with spiral cut gears. Why can't they all use the same accessories ? PITA
I think I'm running out of stuff to buy ar modify for this thank God.
I'll build a rear support after its all done or see if I can find something in a junkyard.
The twin countershafts wil eat some power to turn but I'm confident that it will be a much better setup.
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8 hours ago, mrgumby said:
Had a 3126 cat originally a6 speed put an 8LL in its place was a good little truck with the 8LL
I'm hoping for the same results, The 9 and the 8 are pretty much the same except for the LL. I'm just sick of winding it out to 2400rpm and then having it fall flat on the upshift. It'll also be nice to be able to go a little faster than 64mph
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10 minutes ago, theakerstwo said:
If you use the 9513 behind a 3126 i would use a rear mount on the rear of the trans.I have seen some of the 3126 with leaking fylwheel housing to block and some with a cracked housing at the top.The trans is going to have some noise in it at idle unless you set the idle up on it.
Actually plans changed and I'll be using a RTX12609 so the noise and old age of the trans won't be a problem. It's getting a rear mount as soon as possible, we were talking about that yesterday.
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42 minutes ago, j hancock said:
Wonder how it would work as a mooring anchor for a small Whaler.....?
Jim, not even sure it could do that right
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Best laid plans.........
The 13 speed needed a few things that are getting hard to come by now that is an antique, I had 3 roadrangers given to me, one was a rtx12609 which looks to be a much better choice for this and will give me the overdrive I want so it's going in. Just need to get a new PTO though and a new driveshaft yoke. It was time to do the clutch anyway and the six speed sucked to live with, anybody want to buy it?😀
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1 hour ago, Red Horse said:
Looking good Rich-what are those seats?
Basic seats inc midbacks. Cheapest priced ones but they are comfortable
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6 hours ago, Timmyb said:
Awesome work! Thanks for the pics.
My truck has insulation on the firewall, and I’ll just found a rust hole in the engine bay which has started from the inside. So looks like it’s all gotta come out now.
Is the insulation for noise or heat or both? If it’s just for noise then I plan on doing what you done and dynamat the lot.Thanks Tim, I did it for noise but it might help block some heat, The vinyl that's going on the firewall has some foam bonded to it so that should help too,
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Steering column out for painting and the new wheel. New seats came in, roll of embossed vinyl for the firewall door panels and can back came in. I've had a couple of truck speaker boxes under a bench for at least 15 years finally will have home for them. I plan on connectiing them together spaced apart to install a stereo and cb in between and use as a center console between the seats. Anybody know how to get the headliner down without cracking it? I'd like to dynamat the roof and change the air horn but it doesn't want to pop out. I really don't want to break it. Also found a dash panel on Craigslist that had a mack speedo and tach, my existing speedo doesn't have a bulldog and the tach is for a later truck. Dash came with a bulldog hood ornament and a really nice DM800 nameplate for 50 bucks,
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I think you dodged a big bullet there Paul.
Sounds like you would have had an empty wallet and an empty garage
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2 minutes ago, Red Horse said:
Rich-any problem hooking that 9513 up to a mid range engine? It was designed for big bores.
Hi Bob The consensus is it will work, 1 3/4" input shaft and small bellhousing., My first crane truck had a 210hp DT that had a rt910 behind it, worked great.
I've got the old timer truck mechanic doing this for me that converted my Louisville 3208 cat from an allison to a 910 and that worked out good too although obviously didn't gain any top end speed.. This one should get me rolling a little faster.
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Whoever came up with that Fuller 6 speed should be brought around back and beaten severely
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The rto was free
Just needs a couple things replaced
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I was just wondering if anyone in here has ever run an RTO9513 behind a 3126 Cat? KW T300 single axle 250 hp 3126 which has a fuller 6 speed which is horrible to live with. It's time for a new clutch and I have the 13 speed.
They came from the factory with 9 speeds so I figure a little bit of overdrive can't hurt.
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Makes me miss my Astro
Shouldn't have sold it
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Dynamatting well under way. Ordered 2 new airseats and made up new floor brackets for them. Got some pleated black vinyl material coming for back of cab, door panels and firewall. Going to get a new floormat too, might as well at this point..
Amazing how this stuff can snowball, I really just wanted to get the windshield wipers working again.
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Duplicolor Detroit Alpine green engine paint, pretty much a dead on match.
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If they price them like a Freightliner they will sell a ton of them.
I think it would look great with one of my sign cranes on one.
Time to fix up the R600
in Antique and Classic Mack Trucks General Discussion
Posted
Got the cab back panel made up ready to go, covered the seat bases with black vinyl.