Hi guys i dont post much but will change that. I work on old cruiser's and do fabrication and restoration.. I'm at 10860 switzer #110 Dallas tx 75238. Feel free to come by or call 469 556 7752 i always have a few 40s on hand
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Always enjoy the knowledge you share .. I'll be calling you soonI designed and built that kit for Man-a-Fre in 1996 and continued to build it until about 2010. The crash killed a huge part of the 40
market for years. I passed those drawings off to Man-a-Fre so they could have them built local rather than adding costs from double shipping. They did miss one modification which was never addressed to this day... The window for the VIN.
I changed that about the time I quit making them for MAF. MAF was later sold to BTB. I did send an email and a drawing update
but I think they were going through a lot of shuffling and it never got done. It's a simple fix if you get a kit without the window .
Most of our builds get a different version anymore. Since most springs for the 40 have the large eye like a 60 , we use the 60 spring
pin. The rear mount has accepted the large bushing since about 1999. I made a 1980 and later version of that front mount that accepted the large pin. I preferred that option if possible but MAF didn't carry on that part. Greasable pins are popular but drilling the small pin
has always worried me unless the material used was of better quality. The import pins are all mild steel, 1040 or 1045. At least with the larger pin the grease cavity doesn't have as much affect on the strength as it does on the small pin. I also made a version that was intended to push the front axle forward 1 1/2". The front mount was lower profile and I used that when a cut and turn was already planned. The tall mount is required to maintain caster. Even as tall as it is a 4 degree shim is required to have a final 2 deg positive caster . With a cut and turn you can set caster wherever you want without the use of shims. I don't do lifts over 4"without a cut and turn on a 40 and I recommend a cut and turn even at a 4" lift. With the right axle setup a 4" lift can get much more performance than with
a stock axle.
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