Charles C. Stan

Right on: good job

DBF

Yes.

Just a note: Whatever value you set the pot to will result in a range of rpm where the trans will shift into OD. Mine is set where slight acceleration will shift at 35mph, but if I put my foot down it shifts at 55-60mph.

DBF

Chrisreyn

OK, I went out earlier today and got everythign to do this, including a soldering iron, however, after a few dozen practise attempts at using it, i cant get my solder to hold the wire onto the POT....[( never used one before ) whats the trick ?????
Edit: I bought one of the "cold-heat" soldering irons.. jsut read the reveiws and it seems I have wasted my money, everyone of the "geek" sites are panning them as too difficult to get a good joint with and such...

Radio Shack had everything I needed except the 3-4 strand sheilded cable, which I got at NAPA for $.40 per foot..

Will installing the POT affect the cruise control BTW??

RuralCruiser007

All you are doing by changing the TPS to a Pot is affecting the shift points. The TPS only controls the transmission. On newer trucks where they are drive by wire, it will affect your cruise. You have to remember that we are drive by cable.

HTH

Chrisreyn

Ok, two days now of running with the POT, installed EXACTLY as Tucker did it, and I LOVE IT!!!

With the "low" stop of the POT at about 12 O'clock, 2 o'clock is engaging at 35( for city cruising), 3 o'clock is engaging around 47( towing)...
Looks like my MPG is definitly up, tho I havent calculated it yet...

I would absolutley recommend this mod as a "must -do"

THANKS FOR THE HELP TUCKER!!!!!!!!!!!!!!

91.5 beater

Good directions, mine is gettin one this week!!!

Chrisreyn

Ok, jsut returned from a trip down to the O'zoarks and this was a great help!!
set teh shift point up to around 50 and had no trouble at all maintaining speed thru the hills down there.
I did realize i had the POT installed upside down in teh dash so to speak...

93beater

awesome write up, but im a little confused, you loose your passing gear and by that do u mean a downshift at full pedal, and is it a big deal? usually when i tow i turn o/d off till about 45 50 then i roll on in o/d, will this be hard to get used 2? and will it help me get better milegae?

91.5 beater

where do the wires go on the potentiometer

Fred Swanson

This mod should work on the 94-95, on the 96-9812V's, it'll possibly affect your shift points too with the electronic gov control for the trans.

Brutalowner

Rat-Shack part #'s for reference: Potentiometer #271-1720, ***** #274-403
D-sub connectors #276-1427 should be about $8

wminmi

stupid question of the day: will this work on a '89 with the 3-speed auto?

wannadiesel

No need, you don't have overdrive (or a TPS).

wminmi

thought this was only for OD.....now i feel stupid lol

SHARPMACHINE

So, has anyone tried it on a 96-98?????