h67st

I'm using all Bendix brake valves and nylon lines on my truck; this is an R12 relay valve for the service brakes. What size control line should I use from the treadle valve...3/8" or 1/2"? If anyone has a service brake relay valve on their truck, could you look at what size your line is? Thank you!

I got this in a lot of Mack parts; I don't know what it is. The bolt holes are 4-3/4" on center...you can see what the part number is (it was still sealed in the bag). If anybody can use it, PM me your address and I will ship it to you.

On BigIron auctions, in Nebraska. Looks like a nice truck (with the exception of wedge brakes). Two weeks left on the auction. https://www.bigiron.com/Lots/1979MackRS686LSTTATruckTractor

There's also a 1979 R model that looks decent...I'll start a new post for that one. https://www.bigiron.com/Lots/1967MackF737STTACaboverTruckTractor

Definitely a White 3000. I wonder if the concrete blocks are stacked on the Bobcat tires to keep the wind from blowing it away?

$8,500.

My single axle donor truck is an H67LT so it's got aluminum suspension brackets and air tanks. I cleaned the tanks thoroughly (inside and out) and pressure tested them. I used a jitterbug with 320 paper and then wet sanded with 600, 800, and 1000; then polished with Mothers. They're still scarred from decades of hanging under a truck but I like them anyway. I'm not going for a showroom new look, I like a truck that has some character to it.

That's above my pay grade. What is the coil on?

What condition was he in after the hit? Interesting that you say that, because I got hired as a truck fleet mechanic in 1984 at Pic-Way Shoes after the guy before me stopped in the street to pick up a carton of cigarettes that someone dropped. A lady who was legally blind ran over him and he was killed.

This ad on ebay says this was part of their historical fleet and stored indoors. Looks really sharp! $34,500 or best offer. https://www.ebay.com/itm/1989-Mack-R-R600/124579976948?hash=item1d018b96f4:g:Kc8AAOSw0PNgLrYA&autorefresh=true

The ad is gone so I think it's sold. He told me he had 8 guys wanting to come look at it yesterday.

I drove down and looked at this truck today. It's got a 4 valve E6 with the original Quadruplex in it; the frame has been sectioned in the middle and newer Mack axles with Neway air ride have been added. The transmission blew in 2015; it has been completely rebuilt but the truck hasn't been on the road since then. The owner said the motor has a problem; at first it ran wide open and then it wouldn't come up off idle. It's in much better shape than most old H models but it has a lot of bondo in the cab that is all bubbling out. He can probably get his asking price since these are so rare especially with a live tandem. https://www.facebook.com/marketplace/item/772076626992316/?ref=search&referral_code=undefined

Good catch!!

I worked for a fleet in the 80's, we ran into a lot of dirty plugs or receptacles that would burn up the connectors. We'd put in a new plug and receptacle, no more trouble. Drawing 1500 watts all night will test the quality of any connection.

You ain't kidding about stimulating...the Axalta paint for my cab was $700/gallon.

Did you buy new circuit breakers? Where did you get them?

One thing you run into on these old camelbacks--not enough room to fit a standard chamber. The rotochambers are a lot smaller diameter.

Here is a cushion cover with the dog embroidered in it; he also has some cushions and other covers. https://www.ebay.com/itm/Unused-Old-Stock-Mack-6235226023-Bostrom-Seat-Cover-Gray-6235226-023/294016452724?hash=item4474bf0874:g:mYMAAOSwagpgKvFL

I was talking to a guy the other day that had one of the Dodge "Eco Diesel" pickups. He never changed the fuel filter and it turns out the top end or something is lubricated with fuel; the filter got plugged and resulting lack of fuel damaged the engine bad enough that it had to be replaced. Good reminder that maintenance is important!

That sure looks like a pain with exhaust, steering shaft, etc.!

Looks to be in good shape for 189k. From past experience, if someone takes good care of the body and interior, then that bodes well for maintenance also.

Same here; we changed hundreds of tube-type tires back in the 80's, never had one come apart on us.

On ebay, they're asking $15,000. Looks really clean; it says 300 Cummins with 8LL trans. and 56k rears. https://www.ebay.com/itm/1980-WHITE-GMC-AUTOCAR-DM-SEMI-ROAD-TRACTOR-131K-Miles/114681228677?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

I found Zoro.com is a good place to get radiator hoses; this Gates 2-1/4" rubber hose was $45. They also carry Parker nylon line and fittings at good prices and they only charge $5.00 for shipping. I found HoseWarehouse.com carries a lot of Aeroquip line and fittings at good prices and you can buy any length, not just the entire roll. I bought these lines & fittings for my Luberfiner and fuel pump oil line. I don't think Zoro will sell cut pieces.

There was a thread about welding the center back into a rim and we were discussing split rims, for some reason I can't find it. This split rim is on my truck--the lock ring is solid, and you pry the rim open to get the lock ring off. I don't know how safe these are, but I won't be using it when I put good tires on my truck.