Lowering blocks for rear?

Suspension, steering, brakes, wheels & tires

Moderator: FORDification

Post Reply
ChrisB
New Member
New Member
Posts: 73
Joined: Thu Jul 28, 2005 6:57 pm
Location: Southern California

Lowering blocks for rear?

Post by ChrisB »

Hi had the rear springs rearced about 4 years ago and should have had the ride height lowered about 1.5" plus or minus at that time. The front coils were cut and beams cold bent to get castor back in line at that time. Same shop wants $389 to rearc for a 2" drop or whatever I want and new u-bolts. I think I might just remove a leaf since I don't mind if I lose some rate with the drop. I have air bags, installed at same time...4 years ago, truck probably has 10k miles on it since then.

Anyone satisfied with lowering blocks to tune of 1-2 inches? Recommend a manufacturer/kit? Id be satisfied with 1, 1.5 or 2 inches, probably try 1.5 first if I had the choice for my case.


Chris
User avatar
FORDification
Site & Forum Admin
Site & Forum Admin
Posts: 8050
Joined: Sun Jul 11, 2004 12:52 am
Location: Kansas, Wellsville
Contact:

Re: Lowering blocks for rear?

Post by FORDification »

Unless you've altered things back there, the rearend sits below the springs, so adding blocks right now between the springs and the rearend housing is going to LIFT the back end up. In order to use lowering blocks, you'd have to relocate the rearend (flip it) to the top of the springs. But that would also mean you'd have to C-notch the frame for clearance.
____| \__
-O-----O- Keith
'67 F-100 2WD SWB ~ '69 F-100 4WD SWB w/7" chop ~ 1975 F-250 Ranger XLT Supercab Camper Special
ImageImageImage
My '67 restoration video
-> Posting and you! <-a MUST watch for all!!
ChrisB
New Member
New Member
Posts: 73
Joined: Thu Jul 28, 2005 6:57 pm
Location: Southern California

Re: Lowering blocks for rear?

Post by ChrisB »

I hear you. Hadnt looked closely. I could leave it as is but the expense is bugging me, when I could have done it correctly to begin with.

Any known new leaf packs where a dropped ride height could be ordered for these things? Probably cost the same, but at least Id have a new set and a spare set with stock height.

One of the reasons I want to lean it back or flat, besides looks, which I like better than the forward rake, if not excessive, is it will effectively add positive castor to the front end. The truck wanders after I did the disc brake swap and all the stuff to the front end...more or less due to lack of enough castor. Id rather not start messing with the front end again. if getting the rear height where I want it adds enough effective castor to make it track better, all done. I haven't done the math in a while but I think Id be adding 1/2 to 1* positive castor.

Chris
User avatar
HIO Silver
100% FORDified!
100% FORDified!
Posts: 1970
Joined: Sat Jul 23, 2011 11:31 pm
Location: Devil's Mountain, CA

Re: Lowering blocks for rear?

Post by HIO Silver »

Eaton Detroit Spring offers lowered leaf springs.

The only DIY adjustment on the front end is toe.The beams would have to be cold bent to modify caster and camber.... and that requires specialized equipment.
70 F100 LB 2WD, 360FE, E-Street EFI, TKO-500, 76K original miles.. follow my rebuild: The Lo-Buck Bumpside
71 F250 LB, 2WD, 360FE, T18, PS, PB, D60 with 4.11s
73 F100 SB 4WD, 390FE, NP435, +4 on 35s

01 Ferrari 360 Spider F1
01 F150 SuperCrew Lariat 4WD
01 PT Cruiser Limited (DD)
68 Mustang
65 Mustang
Post Reply