Castor help - please educate me
Thanks everyone!
there are 2 accectable methods to adjust caster on your leaf spring straight axle.
1. caster/camber bushings are available that are good for about +\- 3*. of adjustment. you can slso adjust left and right seperatly so you und up with a 1/2* of split between the 2 which will help the vehile track straight on roads with a crown.
2. wedge shims under the axle. commonly available up to about 4*. with the practical limit really being how much front drive line vibration you want to live with when in 4x4.
i have a good bit of testing at settings from 0* to 6* on the Ex.
factory spec is +\- 3.5*
my experince is right at 3.5* is marganal when everything else is in good eotking order. anything under 3* basically sucks. 4 is good 5 is great.

Pirate4x4_camo: It wouldn't surprise me if they were ripping me off, I've already had to take my truck back once already for a botched powersteering pump job. They replaced the pump but somehow didn't notice that the powersteering hose from the pump to the hydroboost was leaking everywhere? This is a larger independant shop that supposedly is a great place to take your car to. I'm trying to do most of the work myself but some things like suspension work I don't have a lot of practice with and I'm a little timid about possibly screwing something up. The shop is willing to re-do the alignment for me for free but which method of increasing castor is the cheapest and/or the route you would take first? bushings or shims? If I go shims I'm assuming I'd need a set of 2 right? If bushings would I also just need 2? Are the links below a good set of bushings or is there something better? Also, is the factory spec is +/- 3.5* of castor would adding 2* shims or 2* of bushing adjustment give me roughly 5.5* +/- ?
https://www.amazon.com/dp/B000IYCAN8/ref=psdc_318331011_t3_B000RDAD66
https://www.amazon.com/gp/product/B000IYFZ4O/ref=crt_ewc_title_dp_1?ie=UTF8&psc=1&smid=ATVPDKIK X0DER
Thanks!
4Crawler Offroad Products - Custom Leaf Spring Shims
Thanks!
which one you need is dependant on your current settings, a real alignment shop will have what you need in stock. the tricky part about them being a cam is as you rotate for caster it also changes camber. a real alignment shop will have a computer system that selects the correct bushings based on what setting you want while taking into account the current set.
shim.
again, what one you want depends on your current setting. just make sure you use a 3” wide one since that is the width of your spring.
I use WFO but also know 4crawler. just be sure to get steel and 3”
Axle Shims | Steel Degree shims | Caster | Axle Wedge | Custom Parts | WFOConcepts.com
so if you just slap in a 2* shim but your current setting is in spec at 1.5 adding the shim is not really fixing your issue, you just go from horrible to marginal.
Trending Topics
Thanks!
Ford Trucks for Ford Truck Enthusiasts
sometime a wedge is the best, other times a bushing, sometimes it takes both. a real alingnment shop understands when to use what and the pros and cons of each. just get 5* with the least negitive impacts to camber and driveline angle.
Maybe you shouldn't even go back to that shop. Cut your losses short. You're in The SouthLAnd. Not a 1 shop town. Take your truck somewhere where they won't be pissed at you for coming back to challenge them on their ****ty work! I don't know LA all that well. But from all the car shows on TV, there have got to be a couple of shops with better reputations. Look up Chip Foose and see if he could do an alignment. Wander over to West Coast Customs to see if they could "pimp" your alignment. Maybe a dealership. Try Galpin Ford.

https://www.ford-trucks.com/forums/1...l#post18183650
Too many shops try to angle you in with low pricing, and substandard work. Common example is the shops who will change a timing belt, tell you that they will save you a few hundred dollars, then finish the job by reinstalling all the old parts they just took off.
I don't need them to save me $200 today, on a $1,000 job, by reusing an old water pump, belts, hoses, & thermostat......only to have cooling system failure a few moths down the road, then go back to the same shop with another $1,000, so that they can help me save $200 again. Common sense would tell you that you have over 250,000 miles when your timing belt went out, so the best thing to do is install all new belts, hoses, thermostat, water pump......since you already took all the old parts off to get to the timing belt cover. Gee.....all those parts are already off the car......you're not going to flush out the cooling system and install fresh coolant? I've seen mechanics catch coolant in a dirty old bucket, then pour it right back into a customer's car.
Same way ****ty mechanics never use a new drain plug washer with every oil change, hammer the drain plugs on with an impact wrench, then use lots of blue LocTite all over the oil drain hole, on the drain plug threads, and even on the washer! Change the washer! It cost what? $0.12? You'll bill the customer an extra $5 for that, and list it on the invoice as "reseal leaking engine oil pan".
A friend of mine was on assignment in another town, where her neighbor just happened to be the owner of the corner gas station. He did the service work on her car for the 20 months she had to work there. He did a lot of stupid things. One was oil changes with the wrong oil.......his computer generated invoices reflected it! Every oil change, he used 4 quarts of 10W-40 conventional oil - in a Honda Accord which is spec'd for 4.5 quarts of 0W-20. When I asked him about "reseal leaking engine oil pan", he actually showed me all the blue LocTite around the drain plug. "Ya see, the oil drips out because the gasket's no good, so we's gots ta use a 'lil LocTite 'n hammerin' it iup in there real good with an impact gun." That blew my mind! Then I asked him why the oil drain plug was all damaged and rounded off on a new car still under warranty. "The impact gun done did that. Stripped the heck off of 'dat thang."
I drove to the next town over, bought an OEM drain plug & drain plug gasket/washer at a dealership, had the HillBilly put the Accord back onto the lift; then installed 4.5 qts of 0W-20 & a K&N oil filter myself. That night over dinner, I told that good ole' boy, "don't you ever touch her car except to wash it, if she needs anything at all, tow her to the dealership since it's still under warranty". Problem is, I really like that guy. We had dinner with him every time I flew into town. He has even flown up here to take vacations in California. We let him & his girl stay over at the apartment downtown, borrow one of my cars to go sight seeing, and I even let them borrow my Harley to ride up to The Wine Country. I kind of feel sorry for him to be such a bad mechanic, and that is how he earns a living.








