i have a 91 f-150 custom 5.0 L 4x4 with a standard tranny,how hard is to install a tach on a 4 speed od?

 

It's really easy. Just go to the junkyard and buy an instrument cluster with a tach built in. Everything hooks up and is compatible. It's plug and play. It should take you no more than 30 minutes to do the swap.

Of course, your odomoter will be wrong, if that matters to you.

 

this should help. use your old speedo. article will tell how.

https://www.ford-trucks.com/articles/2003/4.php

 

thanks guys-will definately look into this option

 

Actually, there is no reason for the odometer to be wrong. Take your tach/speedo out of your cluster, and install it into the tach cluster.

Works fine

 

fredric,

you must be sleepy, as i said use old speedometer unit from original gauges to replace speedometer unit in new tach/speedo unit.

guicklook

 

Yeah, guess I am sleepy. Or severely undercaffienated. Either way

 

Isnt it different for the 87-91 style then the 92-96 style i know mine in my 90 wont plug in and work Im assuming your talking about the 92-96 stlye cause i know you can with them.

 

fredric

i just felt like messing with you.


i am in ohio or i would go for some coffee with you.

 

The 87-91 clusters are one piece. As far as I know, you can't take them apart and switch parts around.

The clusters themselves are completely compatible. Just plug and play.

 

naaaah, horse raddish. The 91-back cluster comes apart with a few torx screws.

take off the lense (torx)
take off the black shroud (torx)
pull gauges forward, gently (no screws)

Then you'll have a hollow plastic box with a flexible circuit board on the back. the circuit board comes off too if you take out all the light bulbs, and gently pry it off the posts. Be gentle, it can tear.

In fact, here is a picture of one disassembled....

The top one is a 91 back, the bottom one is a 92-96. Comes right apart as you can see.

 

looks like frederic got some caffiene in him!

you set him straight!

 

I'm still grossly undercaffienated. I used to drink about a pot and a half a day plus, add to that endless nicotine.

Since my wife and I are expecting, we no longer run the coffee pot since she has as little self control as I do, so I have a little 16oz coffee maker in the garage. Drinking out of the pot doesn't help

I'm also not getting enough sleep... I'm up until 1 or 2am almost every day... I have too many projects going on at the same time... wiring up a mercury vapor light at the top of the house to light the patio, so its significantly above eye level. That's almost done. I finally got around to cutting down "superbumper" since it was too "super" and stuck out a good 16 inches. Had to hack that back quite a bit, and the primer is drying as I type this. Also remodeling a bathroom, since the 1941 decor was annoying my wife and I to extreme levels... it was one of the few rooms we didn't redo the first year we lived here, mostly because I'm allergic to plumbing. Of course I tear everything out only to find the floor is 6" of poured concrete over 2 layers of tongue and groove hardwood. That's disappointing, I was hoping to find that the hardwood I knew was there was just skimmed over when they put the floor tile down in 1941. Of course, the plumbing goes *through* the poured concrete floor.

Finished the GM to Ford plenum adaptors, finally got around to decking it flat enough to seal, and since Sunday (among a little progress on all of the above) I've finally started cutting up 1/4" plywood to make a basic frame to stretch flannel over, then lay fiberglass over that, to form "superdash".