A place to share information about and to get help with your Tiffin Allegro and its P-30 Chevy chassis. I'm amazed at the seemingly infinite combinations of floor plans throughout the years. 

Members: 26
Latest Activity: Aug 4, 2021

Discussion Forum

Refrigerator replacement 2 Replies

Has anyone replaced their refrigerator? I have a 1985 28 ft Allegro/P-30 that needs the fridge replaced, but by measuring, it won't fit through the door frame even with the fridge doors removed. The…Continue

Started by Richard Pyne. Last reply by R.L Hegler Aug 4, 2021.

Operation overdrive. 6 Replies

Well the 4l80e is in place. The drive shaft is cut and remounted. The holes for transmission cross member are drilled. The wiring for trans controller is run up to cab. All in all this are going good…Continue

Started by Philip Wolsonovich. Last reply by Sam Mason Jun 14, 2021.

Dash Controls 3 Replies

has anyone had to replace their dash AC/Heater controls or have a diagram and can provide some direction. Also has anyone replaced with after market controls.  My controls have fallen apart and not…Continue

Started by Gary R Larkin. Last reply by Sam Mason Jun 12, 2021.

Suspension air bags 13 Replies

Has anyone replaced the coil airbags? If so how did you get them in. The instructions say to twist the air bag but I can't get it to untwist once it is in coil.

Started by Philip Wolsonovich. Last reply by Sam Mason Jun 12, 2021.

Comment Wall


You need to be a member of Allegro/P-30 to add comments!

Comment by Philip Wolsonovich on July 17, 2021 at 2:37pm

Hope some one can help here. My oven valve quit working. It's a Atwwod four burner T2130. Can't seem to find the valve at all any where. Does anyone know where I can find one or retrofit another one?

Comment by R.L Hegler on October 5, 2020 at 2:53pm

Thanks Dan..just finished up my dash a/c restoration...whew that was fun!    Just love having that cold air while going down the highway.

.Ok. Dan or anyone that wants to help me, I need help picking a new alternator ,I think you replaced yours with a higher amp unit? Contact me if you will at because I need To chat about the unit you went with ... I’ve got a 1986 allegro with a gm carburetor 454 v-8

.....Thanks and Happy RVING!!!!

Comment by Daniel Long on September 28, 2020 at 8:16pm

RL glad to have you on here!! yes, I was so glad to have the right tools to open up the bleeder but wow was that tight clearance Clarence! You might check out my old Suburban furnace fix it videos (took two to make one).

Comment by R.L Hegler on September 27, 2020 at 6:03pm

Dan I Just saw your YouTube video on the rear brakes ,,,you’re so right the bleeder is sooo close to the leaf spring /hub assembly ...But glad you got it bled! I just finished installing a new furnace (suburban nt 30sp) Got a great deal I think at only $600..either way the old

35 year old unit needed to go ,the heat exchangers aren’t safe at that age .waiting on parts to rebuild the dash AC ..on to the next project..LOL!!!!!

Comment by Daniel Long on August 23, 2020 at 10:57am

Well, I managed to find the pen hole (bigger than a pin hole) in the brake hard line and fix it with flared fittings. Now to bleed the rear drums but wow! The bleeder valve is like an 1" from the leaf springs!!

It may be less because I'm thinking how the heck to I get a slotted wrench in there??? Any ideas? Allegro P30 with, you guessed it, rear drums....

Comment by Daniel Long on April 5, 2020 at 5:38pm

Thanks Phil!

I have a Bookdocking unit on order to replace my old and not-sure-it-even-works no label model.

Comment by Philip Wolsonovich on April 5, 2020 at 2:48pm
It is a power converter. Mine went bad on our first camping trip. Replaced it with a up dated version. Half the size and has a battery maintenance programmed in it. I would replace it while you've got the fridge out. Well worth the money in the extra life you'll get out of house batteries.
Comment by Daniel Long on April 4, 2020 at 4:13pm

I pulled my Dometic fridge unit out to fix the roof leaks and rot and realized that under this cabinet, bolted to the floor of the RV is some metal box with a vented top. It's plugged in and has what looks like a voltage regulator mounted near it and some lead (metal and looks to be a thermostat wire going down into the floor). The box is aluminum and is about 11" wide by 8" high and about 9" deep. I'll be examining it more and I assumed it was some sort of inverter but the other connections give me pause. 

Comment by Daniel Long on March 21, 2020 at 6:26pm

Managed to redo the wiper/washer hoses, pump and tank so now I can hit a push button and get some water to wash mud and crud off the windshield! Of course we won't be able to travel but hey, it's one thing off my list!!

Comment by Daniel Long on February 9, 2020 at 10:42pm

Got the belt issue fixed by pulling the alternator and putting the RIGHT pulley on her! Finally, the belt is on a correct 6 groove pulley. One more thing fixed on the Long Hauler 2.

Getting ready for the next road trip south to beat the winter blues. If only we can get Mom to not pack for 3 months of clothes....




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Discussion Forum

Refrigerator replacement 2 Replies

Started by Richard Pyne. Last reply by R.L Hegler Aug 4, 2021.

Last camp or for the year 2 Replies

Started by Philip Wolsonovich. Last reply by Daniel Long Feb 8, 2019.

Another successful trip

Started by Philip Wolsonovich Jul 6, 2018.

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Posted by Jay M Ball on August 22, 2021 at 6:24pm — 1 Comment


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