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14bsf to 14bff swap?
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Topic: 14bsf to 14bff swap? (Read 2414 times)
csdineley
Newbie
Posts: 87
14bsf to 14bff swap?
«
on:
March 25, 2013, 11:16:46 AM »
Hello
I wondering how hard would it be to swap a 14bff into my truck with a 14bsf?
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1987 V20 Custom Deluxe, Vortec Headed 350, SM465,Np205 14Bff 4.10
Captkaos
OWNER and Administrator
Administrator
Senior Member
Posts: 18376
Re: 14bsf to 14bff swap?
«
Reply #1 on:
March 25, 2013, 01:11:34 PM »
If it is an early model regular cab it will bolt right in. What is the donor?
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Chris Lucas
73-87chevytrucks
captkaoscustoms
squarebody
csdineley
Newbie
Posts: 87
Re: 14bsf to 14bff swap?
«
Reply #2 on:
March 25, 2013, 01:18:39 PM »
1986 GMC 1-ton srw. Everything looks like it would bolt up but the shock mounts.
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1987 V20 Custom Deluxe, Vortec Headed 350, SM465,Np205 14Bff 4.10
Blazin
Blazin new trails!
Global Moderator
Senior Member
Posts: 6130
Re: 14bsf to 14bff swap?
«
Reply #3 on:
March 25, 2013, 02:12:10 PM »
It will bolt in. Shock mounts might need to be modified, or swapped from the semi floater. U joint might have to have a combonation joint.
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Some people are like Slinkies. Not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs
pholliday1
Junior Member
Posts: 632
1990 V3500 Crew Cab
Re: 14bsf to 14bff swap?
«
Reply #4 on:
March 25, 2013, 03:32:03 PM »
That's a huge upgrade you'll be glad you did.
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VETERAN AND LIFETIME NRA MEMBER. WHAT DO YOU STAND FOR?
1991 V3500 CREWCAB SRW 454TBI GMC
1991 v3500 crewcab SRW 454tbi 480le 6" lift
1990 V3500 crewcab Dana 60 FF 14b 5:38 ratio 40 inch 11" lift
1989 v3500 crewcab 454TBI 5" lift
Engineer
Senior Member
Posts: 1402
Re: 14bsf to 14bff swap?
«
Reply #5 on:
March 25, 2013, 10:26:13 PM »
NO!
If the 14-bolt FF is out of a 1-ton the spring seats are narrower than your 3/4-ton. You need to find a 14-bolt FF from a 3/4-ton, or be prepared to cut and reweld the new axle's spring seats.
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2002 Chevy 2500HD 4x4 8.1/ZF6sp RC/LB
2001 Chevy 2500HD 4x4 6.0/4L85E EC/SB
1997 Chevy Blazer 4x4
1994 Chevy K-2500 4x4 C6P 5.7/4L80E
1979 Chevy K-30 4x4 4sp 4.10
1977 Chevy K-30 4x4 4sp 4.10 454
Dad of an Eagle Scout, and a Life Scout
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14bsf to 14bff swap?