i plan to put a th350 in my 88 iroc z in spring, i heard if i have a th350 with a 9 inch tailshaft my drive shaft will work. do i have to change the yoke or anything like that? and how long is a 700r4. anything will help

 

it'll work with the long tail shaft 350. you'll need a b&m pn 30299 to make it work

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ICON Motorsports

1st & 3rd

 

The yoke is a direct fit. The TH350 and 700R4 use the same spline output shaft. The 700R4 driveshaft will work with no modifications on the TH350 9" tailshaft. The only thing you need to do is buy the kit so you can mount the torque arm since the TH350 doesn't have a mount on the tailshaft like the 700R4 has. The tranny mount is a little different also. The TH350 rear mount sits 2" forward from where the 700R4 sits. I believe the kit has provisions for this.

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Follow my racing progress on Stephen's racing page
and check out the race car

87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
454 Big Block almost ready for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley