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I have searched the archives for any information regarding putting A front clip for purposes of independent suspension. I could not find anything so I thought I would ask for a little help. I'm not interested in a after market as much as I am too weld a donor IFS onto my 1968 D300. 
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Re: front suspention for a D 300
Posted by: swptln (Moderator)
Posts: 834
Date: October 23, 2017 12:33PM

I don't think anyone has attempted a 300 to 350 series swap that I have seen.
A side from a 300 having a straight/flat frame out back behind the cab, I don't see why it couldn't be done as easy as the 100 or 200 series.
I do know the 300 frames are taller and thicker than a 100/200 frame for sure, so I would guess that you would be limited to using a 350 front clip or the frame rails won't line up properly to do a proper "Z" cut and splice.
I would just do some preliminary measuring to see what the frame dimensions are and go from there. My guess would be they are the same, because the 61-71 100/200 are the same as the 72-93 150/250's.

Now that I'm thinking of it, the other thing I would look into is the fact that the 300 and up frame rails are flat/straight behind the cab. You might not have to even cut/clip a 300 and up frame. Just do a whole frame swap and weld the 61-71 cab mounts onto the 72-93 frame and modify the front cross member as needed on the 150/250 for radiator clearance.....even that might not be needed where the cabs are mounted high on the frames, just a thought.
The only reason for clipping the 72-93 IFS on a 61-71 100-200 is the fact that there is a higher offset in the frame rails over the rear axle, but you won't have this issue on a 300 and up.

Now, I'm not sure if the dually pickups 72-93 had an offset over the rear axle? I know the cab and chassis didn't. So, you might run into an issue there......

Mark D.

1968 W200 Sweptside
1969 D100 Utiline
1971 D100 SE Sweptside
1993 D250 Club Cab
1978 D300 Cab & Chassis

Project "69" pic's [pub31.bravenet.com]
E. Brookfield, Massachusetts



Edited 1 time(s). Last edit at 10/23/2017 12:38PM by swptln.

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Subject Views Written By Posted
front suspention for a D 300 259 Gordo 10/20/2017 06:22PM
Re: front suspention for a D 300 48 Kaegi 10/21/2017 09:27AM
Re: front suspention for a D 300 51 Gordo 10/21/2017 11:10AM
Re: front suspention for a D 300 43 swptln 10/23/2017 12:33PM
Re: front suspention for a D 300 25 dougdodgeman 10/25/2017 10:15AM
Re: front suspention for a D 300 38 PwrWgnDrvr 10/25/2017 11:01AM
Re: front suspention for a D 300 43 swptln 10/26/2017 06:54AM
Topic Tangent. 33 Klebert L. Hall 10/26/2017 01:20PM
Re: front suspention for a D 300 46 swptln 10/26/2017 08:39PM
Re: front suspention for a D 300 44 Gordo 10/27/2017 03:11PM
Re: front suspention for a D 300 30 swptln 10/27/2017 03:41PM
Re: front suspention for a D 300 24 Kaegi 11/04/2017 12:49PM
Re: front suspention for a D 300 30 Klebert L. Hall 10/27/2017 04:59PM
Re: front suspention for a D 300 27 swptln 10/27/2017 08:55PM
Re: front suspention for a D 300 31 Klebert L. Hall 10/28/2017 09:29AM
Re: front suspention for a D 300 41 Gordo 10/28/2017 11:33AM
Re: front suspention for a D 300 34 swptln 10/28/2017 04:14PM
Re: front suspention for a D 300 39 Gordo 10/28/2017 09:39PM
Re: front suspention for a D 300 34 txas2step 10/31/2017 11:00AM
Re: front suspention for a D 300 30 Hobcobble 10/31/2017 11:49AM
Re: front suspention for a D 300 29 swptln 10/31/2017 08:11PM
Re: front suspention for a D 300 46 Gordo 11/04/2017 01:50PM
Re: front suspention for a D 300 36 swptln 11/06/2017 05:34PM
Re: front suspention for a D 300 49 Gordo 11/06/2017 07:40PM
Re: front suspention for a D 300 32 Kaegi 11/07/2017 01:54PM
Re: front suspention for a D 300 89 Gordo 11/08/2017 11:33AM


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