350 tranny swap
Supreme Member
Joined: Jul 2000
Posts: 4,541
Likes: 2
Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
Re: 350 tranny swap
Originally posted by zboss86
What are people doing about the torque arm mount when they swap to a 350 tranny from a 700r4?
I take it we have to change shifters also...
What are people doing about the torque arm mount when they swap to a 350 tranny from a 700r4?
I take it we have to change shifters also...
B&M and Hurst both sell a torque arm bracket
its about $90 from jegs
Supreme Member
Joined: Jun 2002
Posts: 3,331
Likes: 0
From: Welland, Ontario, Canada
Car: 85 Monte Carlo SS...
Engine: T.P.I L98.
Transmission: TH350
Axle/Gears: 3:73 Posi
Iam not 100% positive here. but I think I had over heard that you can change the tailstocks on the th350 and the 700r, like I said I am not positive on this. BUt have heard of it being done. ANyone??????
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Joined: Mar 2002
Posts: 4,812
Likes: 0
From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
i dont think you can swap tails due to speedo gear location differences plus cant guarantee the 4 bolt holes align from 700 to 350, if they did then id think theres no point in B&M having bracket for this
good luck
good luck
Joined: Jul 1999
Posts: 394
Likes: 0
From: illinois
Car: 86 camaro
Engine: 433 big block
Transmission: jw powerglide 5500 coan stall
Axle/Gears: moser9" 4:11 posi
i think hes talking about changing the tail shaft on the th350 from 6" to 9", i don't know if you can but it will save you from buying a new driveshaft. i used the b&m kit for awhile but if you are making some power i'd go with the spohn or bmr setup. with the arm bolted to the back of the tranny my drivetrain flexed so much on shifting that the front u-joint was hitting the tunnel. you can use the stock shifter but the letters might not match up , do it by feel.
hmmm...
I've been wondering about that mark above that ujoint. Hell, I never thought about that dude flexing that much. The ole 408 does have some torque now.
Say Summit or sombody does have a kit torque arm kit that you can put a torque arm mount on a 350 tranny though...
Say Summit or sombody does have a kit torque arm kit that you can put a torque arm mount on a 350 tranny though...
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