Does the main supply line come in from the floor near the brake valve? 1990 Pete 379
I haven't checked air pressure yet. I will round up some stuff to test air with. Is there a way to test slave valve? Yes,260 is the cats meow
I also replaced air lines on tranny, regulator, and replaced o-rings in slave valve. Could a plugged vent do this? I have not replaced air line to...
When I took the back box off I was expecting to see brake material gone from the synchro, however it still had some life in it. I had synchronizer...
from high range to low range only, so far
That's what i thought too, so i had it replaced. Still grinding though. It is working fine on the up shift, just misbehaving on the occasional...
Do you mean say I'm flipping the range lever down way before i actually make the gear change? What I try to do is get mph down to about 15 or a...
I am having a problem with transmission grinding on the high to low range selection. Its an RTO 14613 and I just had the back box rebuilt and it...
Thanks @BillMot . This being my first mechanical I wasn't sure about the power delivery. But from what the innerwebs says it sounds normal for a B' .
My truck has one of those by the seat. So far I have only used it to idle it up to build air or maybe heat if I'm doing work on it. Next time its...
10-4 will do. Thanks again for your help. DAN
I'll idle the old gal up. Seemed a little low to me. When I put pump back on , I set it at the same rpm as previous setting. Previous owner said...
Thanks @wore out . Good to hear im worrying about nothing. What kind of idle rpm settings are you guys running? Mine is about 600 but with the...
I have a 04MG 3406B 425 in a 1990 379 and a 13 speed. Truck had been sitting prior to me buying. I have been working on old gal, runs, drives,...
Thanks, I'll check him out.
Im aboot to put a big hole kit in my 1990 Peterbilt, for those with experience what is best sealant to use for sealing new ring to cab and...
I have a 1990 379 EXHD. It is a work in progress but I just got new tires and a alignment. I put 24.5 talls on front (original size) and 24.5 lo...
Any updates on this ? I have a '90 that i would like to lower also.
