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| Tires? And Tranny Pans? | Login now/Join our community |
We have just taken possession of a 1988 Barth Regal. And need to drive it 250 miles home - today. Probably towing a Honda Accord. It has older tires (Standard? 8r19.5) and one new Goodyear 245/70r19.5 on the front to replace a flat. And no spare. Is it a problem to have two different kinds of tires on the front? Sadly, the seller wants it gone and will not provide insight or help. We should have done things differently - had we known this before we gave him our money! | |||
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First Month Member 11/13 |
The slower you drive and the cooler the air and road, the safer you will be. Ideally, front tires should be matched, and rear should be the same size. I would look at putting the 245 on the rear and checking for clearance at the lower bulges. Two 245s on the same axle end might rub, but one of each might be OK. Inflate all on each axle to max sidewall or rim pressure, not exceeding either. Rims are marked on the rear. All wheels on the same axle need the same pressure, but front can be different from back in your situation. Does it have a spare? How old is it? It is not uncommon for a spare to fail, since it has not had the benefit of the sidewall flexing that makes sidewalls "bloom". However, that is offset somewhat by the lack of sun exposure. And................Welcome to the site, and post a picture. Good luck. . 84 30T PeeThirty-Something, 502 powered | |||
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 3/19 |
Welcome to another Michigan Barth lover (maybe). It might be worth your drive to Jackson when you need work done. Complete Truck Repair was really helpful to me. The owner, Jim, is honest and very reasonable about charges. | |||
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Official Barth Junkie |
Good luck with your shakedown run! Too bad the PO is being difficult. Wish I was closer, I have an extra 8R19.5 tire, used but decent shape also you could have borrowed my spare. Keep in touch with the site, we'll keep you going if we can.  9708-M0037-37MM-01 "98" Monarch 37 Spartan MM, 6 spd Allison Cummins 8.3 325+ hp | |||
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7/17 |
Put 85 PSI in all tires. Check them after a hour to see if the hold pressure. If they hold I would go with them and check them every hour or so. If there like ours they will be a pain in the a$$ to check and fill. It takes me 2 different chucks, 1 strait, 1 angled reverse and 1" extenders on valve stems. Your better option is to set up getting new tires before you head home. You won't have to worry about it. you need new tires anyway. I understand that tire will make the cost of the Barth go way up, but that's part of the cost of motor homing safely. Low air pressure is 1 off the main causes of blowouts. When I 1rst picked up our 86 31' it had original tires on the rear. 23 years old. I put 120 miles on them before I knew how old they were . the fronts were over 10. Replaced them all with new Good Year G670 RV. They're about 4 year old and been happy with them so far. 1986 31' Regal -1976 Class C 454/T400 P30 -350/T400 G30 twin cntr beds - 21' rear bath | |||
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| 2/16 Captain Doom  |
I agree with Doorman - tires are too important to take chances. At the least, I'd certainly at least match the front ones, replacing the older one before heading home. I addition, I'd replace all the fluids before the trip and have the chassis lubed. Rusty  "StaRV II"'94 28' Breakaway: MilSpec AMG 6.5L TD 230HP Nelson and Chester, not-spoiled Golden Retrievers Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case the idea is quite staggering. - Arthur C. Clarke It was a woman who drove me to drink, and I've been searching thirty years to find her and thank her - W. C. Fields | |||
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| 7/17 |
Just out of curiosity where you picking your coach up at? 1986 31' Regal -1976 Class C 454/T400 P30 -350/T400 G30 twin cntr beds - 21' rear bath | |||
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| First Month Member 11/13 |
Always consider the chassis when evaluating tire opinions. Example: MWrench is a sharp guy, but he hates the tires I love. His coach is way different from mine.
Could it be a spare?
In back or under the bed, if it fits. If you have a double bed and want to do that, I can take a picture of our lash up.
A bottle jack and some blocks. If you buy Chinese, buy a spare, as well.
I believe the Barthmobile CD has the GM manuals. There is the standard GM light truck manual and the GM motor home manual. Be sure the coach is aligned to MH manual specs and not potato chip truck spec. . 84 30T PeeThirty-Something, 502 powered | |||
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| First Month Member 11/13 |
You will be fine. I run 8Rs in back and 245s in front. Having two matched tires up front is good. . 84 30T PeeThirty-Something, 502 powered | |||
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| 7/17 |
I Thought looking at the milage that this might be the one from Dayton. Glad you had a good trip back. If I had known you were coming, I could have met you and giving you a lot more info on Your Regal than the owner. Steve VW loaded a pdf for 86 chassie on this forum. Will try to find that link. I bought service manual off Ebay for mine. There is also a pdf on here for P30 suspension and alignment. If you have any questions this forum is a great place for answer. Welcome to Barthmobiling. Hope you get enjoyment from your new purchase. BEWARE this forum can be additive. 1986 31' Regal -1976 Class C 454/T400 P30 -350/T400 G30 twin cntr beds - 21' rear bath | |||
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| Official Barth Junkie |
Hey Larry welcome to Barthmobile. (From one Chebby guy to another we have somewhat similar coaches.) In the forum "Ads, Documentation, etc" you can find lots of manuals and info. 1986 service manual https://www.barthmobile.com/eve...1087061/m/4893991167 chassis wiring https://www.barthmobile.com/eve...1087061/m/1703990167 There are also several other major projects I have documented in the other forums: crankshaft replacement(!), driveshafts, carburetor mods, front brakes, air bags (front and drive axles), cruise control, transmission mods, ignition upgrades, fuel injection conversion(!) and others. Do a search for my old posts...  Bill h is also good reading in the archives. Good luck with your coach. Don't be afraid to ask questions. Wise move getting good tires. 9708-M0037-37MM-01 "98" Monarch 37 Spartan MM, 6 spd Allison Cummins 8.3 325+ hp | |||
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| 7/17 |
The factory Chevy Light Truck manual is what you need to cover you chassis. There is no Barth service manual. Barth came with a Barth manual, It is a binder that had manuals for all the Equipment in the coach. Replicas of these binders are available thru Bill NY. It appears that you are in your early stages of Barth addiction. I went thru this myself. As you get further into the coach and appreciate the quality of workmanship that went into these coaches the worse it gets. I have been told that a bottle of 25 year old scotch help the withdraw symptoms. I always thought I wanted a GMC. After buying my Barth the GMC don't have the appeal they use to. You got a good affordable chassis and as our motto at Barthmobile goes. "You can repair a Barth faster than they fall apart."or something like that. 1986 31' Regal -1976 Class C 454/T400 P30 -350/T400 G30 twin cntr beds - 21' rear bath | |||
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| First Month Member 11/13 |
I have always admired the GMC, and used to be an Olds performance guy. But they lost out because of limited storage, inside and out, and the chassis is a real orphan.
The transmission fluid is best changed by removing the pan and installing a drain plug. I would also recommend installing a bung for a temp gauge. Replace the filter(ABC), reinstall and flush the tranny and converter with new fluid. I believe I posted a link here a while back. The diff may or may not have a drain plug. If so, drain and refill. If not, use a sucker to get all the old fluid out. After sucking, raise one end and go inside and watch a ball game. that will let the oil in the bearing cavity drain down. Repeat for other side. Then refill, doing the same to fill both cavities before you check the level for the final check. Apologies in advance if this sounds overly thorough, but I used to be an airline mechanic, and you know how they are. . 84 30T PeeThirty-Something, 502 powered | |||
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| Official Barth Junkie |
TH400/475 same except for internal gears. Picture of gasket and filter, etc here: https://www.barthmobile.com/eve...1087061/m/5943946077 I also had temp sensor gauge but it was installed in the cooler line. I preferred the gauge located in the pan and installed the bung there. Much nicer when draining fluid to be able to DRAIN FIRST, then remove pan, less messy! 9708-M0037-37MM-01 "98" Monarch 37 Spartan MM, 6 spd Allison Cummins 8.3 325+ hp | |||
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| First Month Member 11/13 |
You probably have the deep pan. Be sure that the filter pick up tube is the longer one. . 84 30T PeeThirty-Something, 502 powered | |||
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