Thanks everyone for your thoughts on this...😁

13 hours ago, mrsmackpaul said:

Nothing real cool my ass, the little doggy will be shibberbating, amd that must be a word for sure

Cracking photo

Don't see many dogs in the snow out here

 

Paul

Seems like a word to me... LOL😂

She's hibernating😴 for the winter, got the CH out on the salty roads...

Thanks joeymack. 

LOL, No I am not putting that in the same category as my real truck...

And just for the record, nutsert is a real word guys...🤣

 Thanks joeymack and mecohaulic.

Not sure on the nutserts, was thinking about doin it over winter, and was wondering if anyone knew off the top of their head, just did em on my F-250 and had to drop headliner...😠

Anyone know if you can replace bases and gaskets on an 88 R-model from outside the cab without removing headliner ?

Thanks again guys....

High beams working with dash toggle, cleaned up pigtail and switch connections and working fine with switch now...😁

She's an old dog, but a happy dog. '88 R688ST/350 4v/T-2090

Much more fun than driving the '09 vision around waiting for the cel to come on again😑🤦‍♂️

Plus you gotta love the black puff of power with every gear😁

Thanks tjc transport and Doubleclutchinweasel, I do have the dash toggle, didn't even cross my mind to try that. Will give that a shot....  before just replacing the switch then do a jumper test if needed...  Prefer to diagnose before firing the parts cannon, although the dimmer switch is pretty cheap ammo...😂

Hello all, Looking for some advice. On my 1988 R688ST I have no high beams when I push the floor dimmer switch. Headlights just go out, low beams work fine. Pulled a bulb and tested on a different truck just to confirm that it wasn't that somehow miraculously both high beams failed at the exact same time... Could this just be a bad floor dimmer switch, or should I be looking elsewhere?

Problem was that under extreme suction the cap would collapse and cut off air flow to engine...

Good call fjh,  Once upon a time in my trash collecting days, I drove a MR with a Leach packer body on it, and the air intake rain cap had gotten pushed down by a branch or something, and compromised the mesh on one side,  it would run like a champ all day long and lose power/black smoke and kill itself only when climbing this specific hill. pull over and it would start right up and run fine till the next climb... took a bit to catch it but it is a possibility to check in too for sure.... Was almost 25 yrs ago when I piloted that fine unit... Old age brain fog had clouded that memory...

We had a 2000 RD chased similar problem without black smoke issue and ended up being a loose engine ground... Check fuses/relays for corrosion/tightness, and engine grounding for corrosion/tightness before buying an ECU...

880joe,  sent you a direct message also.

Model years on the transmissions?

Any idea on milages?

Prices?

Anyone got a good T2090 with pto provision in Northern illinois or  Southern IL,  IN. or WI.???

Joe,  They say it Replaces current SRI part # : 62-147  (4QK4005A)  That part # shows as 

Mack Rear Leaf Spring | 10 Leaves | 19,000 lbs. Capacity

Thanks again all for the input.

Decided I am going with new spring packs and orig style rubbers on it.

Really appreciate this forum and all who give their 2 cents. 

Maybe some day if i can retire, I'll play with the suspension a bit.

For now while i still work it, After all things considered, I will go with factory spec rear setup.

Might be able to gross a bit more anyway since my wallet will be close to empty..🤣😑

Thanks to all who have chimed in. 

Now that I have the old suspension apart, seems to me that the old leave packs are ok, and could be re-used, going to go with all polyurethane bushings spring pads etc... and I came across this set up, and was just wondering if going to this set up with all poly bushings might really improve ride quality, but am concerned because I do alot of dump work in the spring/summer, and spend a decent bit of time off road in the slop.... Was hoping someone had some real world experience using this set up and if they had any insight into longevity vs ride quality improvement...

Triangle's New and Improved Mack Camelback
Lighter Weight • More Payload • Better Performance • Longer Life

Joey Mack, Slowly but surely. I do prefer driving the old dog to my 99 CH. CH rides a bit better on the air bags, but will get hung up on a piece of pea gravel😜🤣The R model will walk out of just about anything.... Plus the coolness factor just isn't there....

Thanks bulldog, I do shift using the new pattern, but just think the new pattern sticker will look out of place in the old dog...

Joey Mack, the part# area of sticker can't be deciphered anymore...

67RModel, Didn't even think to call Watts. I'll give them a ring.

Hans Remmers, That's a good idea, if all else fails...

Mecohaulic, You B-model guys are all comedians...🤣🤣

Thanks everyone for responding... 

Finding plenty for the revised pattern with 4th high side by the seat, but would like to find one for the old shift pattern for my '88 R 688ST.

I want to try and keep it looking period correct in the cab...