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#1 |
Out draggin'
Join Date: Jan 2004
Location: Pitman,NJ
Posts: 1,574
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Another BB swap question........
I have a few issues I need to clear up in my head.... Here it goes:
I have purchased but haven't brought home yet a 71 C20 sub with a factory BB,T400,ect..... My 71 C10 is a 307, 3spd.... The BB I am using for my C10 is the 454 out of my 76 CC dually. I had planned on using the C20's mounts, brackets, ect and just swapping them into my C10 frame and dropping the 454 in but.... Do I understand correctly that the 68-71 BB rubbermounts are like $120+ ea!? Nobody makes a Urethane mount as a replacement??? Will the 76' frame mounts bolt onto the 71' C10 frame & crossmember without any mods??? Last but not least, I read in another thread that the BB/T400 trucks had a high hump floor. My C10 has the low hump. Will I need to swap humps from the donor C20 Sub or will I be OK with my clearance. Thanks.... Joe
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91 GMC Xcab LB-Bags/bd/caddy clip SOLD 72 C10 Cheyenne Super LWB SOLD 92 GMC K1500 Burb 72 C10 Burb (ex. Cheesewagon)SOLD 72 C20 Burb parts truck 71 C10 Burb "project" |
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#2 |
Registered User
Join Date: Jan 2003
Location: Seattle WA
Posts: 1,466
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no hump swapping required.
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FocuzTech Performance Evergreen Protective Coatings Gatorhyde...the best kept secret in spray in bed lining & protection |
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#3 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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I use small block rubber mounts on big block stands. They cost about 7 bucks each. Works fine for me. Mounts already cost too much 10 years ago when I had my first BB truck. I just use a big harmonic balancer bolt washer underneath the stand on the mount bolt.
Low hump will work, but if your cab mounts are real saggy, it will rub. New mounts will fix it.
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I'm on the Instagram- @Gearhead_Kevin |
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#4 |
Out draggin'
Join Date: Jan 2004
Location: Pitman,NJ
Posts: 1,574
|
You are using the 68-71 stands I assume???? I don't plan on rompin' all over this truck so they should hold up just fine I guess...
Good deal on the hump... ![]() Thanks.... Joe
__________________
91 GMC Xcab LB-Bags/bd/caddy clip SOLD 72 C10 Cheyenne Super LWB SOLD 92 GMC K1500 Burb 72 C10 Burb (ex. Cheesewagon)SOLD 72 C20 Burb parts truck 71 C10 Burb "project" |
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#5 |
Registered User
Join Date: Sep 2003
Location: Holts Summit, Mo.
Posts: 58
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I believe the later modle frame stands will work with some modification. If you donot want to drill the additional holes, I would be interested in buying the later model mounts. Thanks, Bart
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72 Cheyenne Super waiting on 4/6 drop,BB and 700r4 |
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